Elon Musk – Jupiter Broadcasting https://www.jupiterbroadcasting.com Open Source Entertainment, on Demand. Thu, 14 Apr 2022 13:00:53 +0000 en-US hourly 1 https://wordpress.org/?v=5.5.3 https://original.jupiterbroadcasting.net/wp-content/uploads/2019/04/cropped-favicon-32x32.png Elon Musk – Jupiter Broadcasting https://www.jupiterbroadcasting.com 32 32 Easy for Schmidt to Say | Coder Radio 461 https://original.jupiterbroadcasting.net/148197/easy-for-schmidt-to-say-coder-radio-461/ Wed, 13 Apr 2022 05:30:00 +0000 https://original.jupiterbroadcasting.net/?p=148197 Show Notes: coder.show/461

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Starlink’s Linux Secrets | LINUX Unplugged 429 https://original.jupiterbroadcasting.net/146562/starlinks-linux-secrets-linux-unplugged-429/ Tue, 26 Oct 2021 19:00:00 +0000 https://original.jupiterbroadcasting.net/?p=146562 Show Notes: linuxunplugged.com/429

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Linux Action News 191 https://original.jupiterbroadcasting.net/145177/linux-action-news-191/ Mon, 31 May 2021 10:00:00 +0000 https://original.jupiterbroadcasting.net/?p=145177 Show Notes: linuxactionnews.com/191

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Functional Sadism | Coder Radio 406 https://original.jupiterbroadcasting.net/144577/functional-sadism-coder-radio-406/ Wed, 24 Mar 2021 17:30:00 +0000 https://original.jupiterbroadcasting.net/?p=144577 Show Notes: coder.show/406

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Tech Talk Today 271 https://original.jupiterbroadcasting.net/124137/tech-talk-today-271/ Mon, 16 Apr 2018 16:57:32 +0000 https://original.jupiterbroadcasting.net/?p=124137 Show Notes: techtalk.today/271

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The Launch | T3 261 https://original.jupiterbroadcasting.net/122742/the-launch-t3-261/ Fri, 23 Feb 2018 14:36:13 +0000 https://original.jupiterbroadcasting.net/?p=122742 Episode Links Facts About SpaceX’s Falcon Heavy Rocket — Musk first announced a bigger rocket — the Falcon Heavy — in 2011. At the time, he said the rocket would carry 117,000 lbs. (53,000 kilograms) of cargo to orbit — twice the capacity of the space shuttle. Musk also predicted the first Falcon Heavy flight […]

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Fake Noah | User Error 14 https://original.jupiterbroadcasting.net/116061/fake-noah-user-error-14/ Fri, 23 Jun 2017 22:30:15 +0000 https://original.jupiterbroadcasting.net/?p=116061 RSS Feeds: MP3 Feed | Video Feed | iTunes Feed Become a supporter on Patreon: Links Github – djfun/audio-visualizer-python: A little GUI tool to render visualization videos of audio files. Nylas Mail Is Dead, Jim – OMG! Ubuntu! GitHub – nylas-mail-lives/nylas-mail: An extensible desktop mail app built on the modern web. Forks welcome! Amazon.com: The […]

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Voyager 1 & SpaceX | SciByte 136 https://original.jupiterbroadcasting.net/62367/voyager-1-spacex-scibyte-136/ Tue, 15 Jul 2014 20:45:40 +0000 https://original.jupiterbroadcasting.net/?p=62367 Hello everyone and welcome back to SciByte! We take a look at Voyager 1 reading a tsunami wave from the sun, SpaceX launching satellites into space and testing new reusable systems, story and spacecraft updates, Curiosity news, and as always take a peek back into history and up in the sky this week. Direct Download: […]

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Hello everyone and welcome back to SciByte!

We take a look at Voyager 1 reading a tsunami wave from the sun, SpaceX launching satellites into space and testing new reusable systems, story and spacecraft updates, Curiosity news, and as always take a peek back into history and up in the sky this week.

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Voyager 1 Sees Another Interstellar Tsunami

  • NASA’s Voyager 1 spacecraft has experienced a new “tsunami wave” from the sun as it sails through interstellar space
  • Such waves are what led scientists to the conclusion, in the fall of 2013, that Voyager had indeed left our sun’s bubble, entering a new frontier
  • Interstellar Tsunami
  • “Normally, interstellar space is like a quiet lake,But when our sun has a burst, it sends a shock wave outward that reaches Voyager about a year later. The wave causes the plasma surrounding the spacecraft to sing.” | Ed Stone of the California Institute of Technology
  • Data from this newest tsunami wave generated by our sun confirm that Voyager is in interstellar space
  • Coronal Mass Ejection
  • Our sun goes through periods of increased activity, where it explosively ejects material from its surface, flinging it outward
  • These events, called coronal mass ejections, generate shock, or pressure, waves.
  • Three such waves have reached Voyager 1 since it entered interstellar space in 2012
  • The first was too small to be noticed when it occurred and was only discovered later, but the second was clearly registered by the spacecraft’s cosmic ray instrument in March of 2013
  • In 2013, thanks to the second tsunami wave, the team acquired evidence that Voyager had been flying for more than a year through plasma that was 40 times denser than measured before – a telltale indicator of interstellar space
  • Now, the team has new readings from a third wave from the sun, first registered in March of this year
  • Frequency
  • The plasma wave instrument can detect oscillations of the plasma electrons
  • “The tsunami wave rings the plasma like a bell … While the plasma wave instrument lets us measure the frequency of this ringing, the cosmic ray instrument reveals what struck the bell – the shock wave from the sun.” | Ed Stone of the California Institute of Technology
  • This ringing of the plasma bell is what led to the key evidence showing Voyager had entered interstellar space, denser plasma oscillates faster, the team was able to figure out the density of the plasma
  • Of Note
  • These data show that the density of the plasma is similar to what was measured previously, confirming the spacecraft is in interstellar space
  • The mission has not left the solar system, it has yet to reach a final halo of comets surrounding our sun, but it broke through the wind-blown bubble, or heliosphere, encasing our sun
  • Further Reading / In the News
  • Sun sends more ‘tsunami waves’ to Voyager 1 | Phys.org

— NEWS BYTE —

SpaceX Launches Telecom Satellites

  • SpaceX successfully launched six ORBCOMM advanced telecommunications satellites into orbit on Monday, July 14, to significantly upgrade the speed and capacity of their existing data relay network.
  • Testing the Rocket Booster Reentry
  • They also used this launch opportunity to try and test the reusability of the Falcon 9′s first stage and its landing system while splashing down in the ocean
  • However, the booster did not survive the splashdown. SpaceX CEO Elon Musk reported that the rocket booster reentry, landing burn and leg deployment worked well, the hull of the first stage “lost integrity right after splashdown
  • Musk tweeted. “Detailed review of rocket telemetry needed to tell if due to initial splashdown or subsequent tip over and body slam.”
  • SpaceX wanted to test the “flyback” ability to the rocket, slowing down the descent of the rocket with thrusters and deploying the landing legs for future launches so the first stage can be reused
  • The previous test of the landing system was successful, but the choppy seas destroyed the stage and prevented recovery
  • The Future
  • The six satellites launched are the first part of what the company hopes will be a 17-satellite constellation. They hope to have all 17 satellites in orbit by the end of the 2014
  • Multimedia
  • YouTube | Orbcomm OG2 | Falcon 9 Satellite Launch | Launch
  • YouTube | Orbcomm OG2 | Falcon 9 Satellite Launch | Seperation
  • YouTube | Orbcomm OG2 | Falcon 9 Satellite Launch | In Space
  • Further Reading / In the News
  • SpaceX Launches Six Commercial Satellites on Falcon 9; Landing Test Ends in “Kaboom” | UniverseToday.com

— TWO-BYTE NEWS —

How Many Scientists Publish Papers?

  • A new study finds that very few scientists – fewer than 1% manage to publish a paper every year.
  • But these scientists dominate the research journals, having their names on 41% of all papers.
  • They looked at papers published between 1996 and 2011 by 15 million scientists worldwide in many disciplines
  • This research, published on 9 July in PLOS ONE, was led by epidemiologist John Ioannidis of Stanford University in Palo Alto, California, with analysis of Elsevier’s Scopus database by colleagues Kevin Boyack and Richard Klavans at SciTech Strategies
  • By The Numbers
  • The ranks of scientists who repeatedly published more than one paper per year thin out dramatically
  • Two or more: 68,221
  • Three or more: 37,953
  • Four or more: 23,342
  • Five or more: 15,464
  • 10 or more: 3269
  • How Does That Make Sense?
  • Many of these prolific scientists are likely the heads of laboratories or research groups; they bring in funding, supervise research, and add their names to the numerous papers that result
  • Others may be scientists with enough job security and time to do copious research themselves from highly productive labs
  • There is also a lot of grunt work behind these papers, for example doctoral students may be enrolled in high numbers, offering a cheap workforce
  • Those doctoral students might only get their name published on only one or a few papers and may spend years on research that yields
  • Further Reading / In the News
  • The 1% of scientific publishing | Science/AAAS | News

— Updates —

HIV Detected in ‘Cured’ ‘Mississippi Baby

  • Last Time on SciByte …
  • SciByte 84 | HIV & SpaceX Troubles | March 5, 2013
  • SciByte 123 | HIV Treatment & European Dinosaur | March 11, 2014](https://original.jupiterbroadcasting.net/53247/hiv-treatment-european-dinosaur-scibyte-123/
  • The child known as the ‘Mississippi baby’ — an infant seemingly cured of HIV that was reported as a case study of a prolonged remission of HIV infection now has detectable levels of HIV after more than two years of not taking antiretroviral therapy without evidence of virus
  • History
  • The child was born prematurely in a Mississippi clinic in 2010 to an HIV-infected mother who did not receive antiretroviral medication during pregnancy and was not diagnosed with HIV infection until the time of delivery
  • Because of the high risk of HIV exposure, the infant was started at 30 hours of age on liquid, triple-drug antiretroviral treatment.
  • Testing confirmed within several days that the baby had been infected with HIV. At two weeks of age, the baby was discharged from the hospital and continued on liquid antiretroviral therapy
  • The baby continued on antiretroviral treatment until 18 months of age, when the child was lost to follow up and no longer received treatment
  • When the child was again seen by medical staff five months later, blood samples revealed undetectable HIV levels (less than 20 copies of HIV per milliliter of blood (copies/mL)) and no HIV-specific antibodies
  • The child continued to do well in the absence of antiretroviral medicines and was free of detectable HIV for more than two years
  • Unfortunate New Findings
  • During a routine clinical care visit earlier this month, the child, now nearly 4 years of age, was found to have detectable HIV levels in the blood
  • Repeat viral load blood testing performed 72 hours later confirmed this finding
  • Additionally, the child had decreased levels of a key component of a normal immune system, and the presence of HIV antibodies — signals of an actively replicating pool of virus in the body.
  • Based on these results, the child was again started on antiretroviral therapy.
  • To date, the child is tolerating the medication with no side effects and treatment is decreasing virus levels
  • Genetic sequencing of the virus indicated that the child’s HIV infection was the same strain acquired from the mother
  • What This Means
  • In light of the new findings, researchers must now work to better understand what enabled the child to remain off treatment for more than two years without detectable virus or measurable immunologic response
  • Researchers are hoping to find out what might be done to extend the period of sustained HIV remission in the absence of antiretroviral therapy. Since typically, when treatment is stopped, HIV levels rebound within weeks, not years
  • “The prolonged lack of viral rebound, in the absence of HIV-specific immune responses, suggests that the very early therapy not only kept this child clinically well, but also restricted the number of cells harboring HIV infection,” said Katherine Luzuriaga, M.D., professor of molecular medicine, pediatrics and medicine at the University of Massachusetts
  • The results to indicate that early antiretroviral treatment in this HIV-infected infant did not completely eliminate the reservoir of HIV-infected cells that was established upon infection
  • The Clinical Trial
  • At the same time the results were announced in March, a clinical study was announced that would follow a similar treatment
  • The researchers planning the clinical trial will now need to take this new development into account, the case may have considerably limited its development and averted the need for antiretroviral medication over a considerable period
  • “Scientifically, this development reminds us that we still have much more to learn about the intricacies of HIV infection and where the virus hides in the body. The NIH remains committed to moving forward with research on a cure for HIV infection.” | NIAID Director Anthony S. Fauci, M.D.
  • Further Reading / In the News
  • ‘Mississippi Baby’ now has detectable HIV, researchers find | ScienceDaily
  • Researchers Describe First ‘Functional HIV Cure’ in an Infant | ScienceDaily.com

— SPACECRAFT UPDATE—

ISEE3 Reboot Project

  • The Low Down
  • The previous ‘problems’ with the propulsion tanks were turned loose upon the internet looking for experts in various fields to help come up with ideas and solutions
  • One idea that came up was that that there would have been some ‘vapor lock’ where come fuel gasified in the lines
  • The team then used those experts to come up with a plan to heat and pulse the propulsion systems to hopefully clear the lines.
  • The current window of opportunity to test this is Wed, July 16
  • [Recently in ISEE-3 Reboot Project Category | SpaceCollege.org(https://spacecollege.org/isee3/)
  • Twitter | ISEE3 Reboot Project ‏@ISEE3Reboot
  • 10 Jul 2014 | We have spent the day consulting with world class propulsion experts and have some solid plans for tackling our #ISEE3 propulsion issues.
  • 11 Jul 2014 | Now focusing on more heating of hydrazine tanks & long sequences of thruster firing attempts to (possibly) clear #ISEE3 prop system
  • 11 Jul 2014 | We did not have a successful #DSN ranging session today. DSN was unable to get a consistent lock on #ISEE3 – updates later today.
  • 11 Jul 2014 | #ISEE3 is in Science Mode and is broadcasting telemetry which you can view in near real-time at https://www.amsat-dl.org
  • 11 Jul 11 2014 | Our propulsion experts say it is unlikely that we’ve lost Nitrogen &/or Hydrazine reserves. Most likely some gas in the lines #ISEE3 1/2
  • 11 Jul 2014 | Some additional heating and a few hundred thruster pulse firings might clear the lines. Working up a plan now for next week #ISEE3 2/2
  • 12 Jun 2014 | the Voyager team reprogrammed both spacecraft billions of miles away. Nearby space plumbing on #ISEE3 is easy by comparison
  • 12 Jun 2014 | we want to heat the fuel tanks and then fire the engines several hundred times to clear gas out of the lines. #ISEE3
  • 13 Jul 2014| We’re focusing on heating hydrazine tanks & then making long series of thruster firing attempts to clear the lines. More info soon. #ISEE3
  • 14 Jul 2014 | We’re putting final touches on #ISEE3 propulsion repair process to be implemented this week. We think there is still plenty of fuel for TCM
  • 14 Jul 2014 | All we are waiting for now is a confirmed window from our friends at Arecibo & we’re ready to do some deep space plumbing repairs on #ISEE3
  • 15 Jul 2014 | If you’ve ever had to clean out your car’s carburetor & fuel line then you have an idea of what our plan is to try & fix #ISEE3 tomorrow

— CURIOSITY UPDATE —

  • Mission Info
  • Curiosity still has about another 2.4 miles (3.9 kilometers) to go to reach the entry way at a gap in the dunes at the foothills of Mount Sharp sometime later this year
  • To date, Curiosity’s odometer totals over 5.1 miles (8.4 kilometers) since landing inside Gale Crater on Mars in August 2012. She has taken over 162,000 images
  • Multimedia
  • YouTube Curiosity Rover Report JPLnews
  • Image Galleries at JPL and Curiosity Mulimedia
  • Social Media
  • Curiosity Rover @MarsCuriosity
  • Further Reading / In the News

SCIENCE CALENDAR

Looking back

  • July 17, 709 BC : 2723 years ago : Earliest Record Solar Eclipse. : In 709 BC, the earliest record of a confirmed total solar eclipse was written in China. From: Ch’un-ch’iu, book I: “Duke Huan, 3rd year, 7th month, day jen-ch’en, the first day (of the month). The Sun was eclipsed and it was total.” This is the earliest direct allusion to a complete obscuration of the Sun in any civilisation. The recorded date, when reduced to the Julian calendar, agrees exactly with that of a computed solar eclipse. Reference to the same eclipse appears in the Han-shu (‘History of the Former Han Dynasty’) (Chinese, 1st century AD): “…the eclipse threaded centrally through the Sun; above and below it was yellow.” Earlier Chinese writings that refer to an eclipse do so without noting totality.

Looking up this week

— SciByte Summer Hiatus —

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“Hot-Earths” & New Species | SciByte 108 https://original.jupiterbroadcasting.net/45962/hot-earths-new-species-scibyte-108/ Tue, 05 Nov 2013 21:09:20 +0000 https://original.jupiterbroadcasting.net/?p=45962 We take a look at a strange exo-planet, SpaceX rocket testing, an Australian ‘lost world’, simulating dinosaurs walk, and more!

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We take a look at a strange exo-planet, SpaceX rocket testing, an Australian ‘lost world’, simulating dinosaurs walk, viewer feedback about human regeneration, Curiosity news, and as always take a peek back into history and up in the sky this week.

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Hot Exoplanet is NOT a \’New Earth\’

  • A team of astronomers have discovered an earth-like blazing hot planet that shouldn\’t exist
  • No matter what the headlines say, just because an exoplanet has somewhat like Earth in density or size, it doesn\’t mean it\’s habitable.
  • The Star Kepler 78
  • A sun-like G-type star
  • It is located 400 light-years from Earth in the constellation Cygnus
  • Discovered using data from NASA\’s Kepler Space Telescope with follow up observations were made using W.M. Keck Observatory atop Mauna Kea in Hawaii
  • Kepler 78-b
  • First known Earth-sized planet with an Earth-like density
  • Diameter of 9,200 miles, 1.2 times the size of Earth
  • Mass is 1.7 times more than Earth
  • Composed of iron and rock
  • Orbit Length | 8.5 hours
  • Distance from star | 1.6 km / 1 mi
  • Kepler 78-b Mass Measurements
  • Two independent research teams have now confirmed the planet’s mass and density by measuring “wobbles” of its sun-like host star, seen as the exoplanet orbits around it
  • Generally it is difficult to measure the mass of planets that Kepler finds because it is hard for ground-based telescopes to spot the subtle wobble of the star
  • In the case of Kepler 78-b since it orbits so close to its star, the planet exerts a greater gravitational pull on the star that it would if it were as far as Earth is from our sun
  • Breaking The Rules
  • When this planetary system was forming, the young star was larger than it is now meaning that it would have been inside the swollen star
  • The planet couldn’t have formed farther out and migrated inward, because it should have been drawn straight into the star
  • One of the more exotic possibilities is that it is the remnant core of a disrupted gas giant
  • The extreme gravitational pull from its star will draw it ever closer in, ripping the entire planet apart in about three billion years
  • Multimedia
  • YouTube | Earth-like planet Kepler 78b | Nature Newsteam
  • Further Reading / In the News
    +New Earth-Like Blazing Hot Planet ‘Kepler-78b’ Discovered | ScienceWorld.com
  • New-found Earth-size Exoplanet Doomed – News Watch | Newswatch.NationalGeographic.com
    +Kepler Discovers Earth-Sized Mystery Planet – Popular Mechanics

— NEWS BYTE —

SpaceX Will Be Renting Test Space From NASA

  • SpaceX has signed a contract to research, develop and test Raptor methane rocket engines at the NASA Stennis Space Center in southern Mississippi
  • Testing
  • SpaceX currently does most of its rocket testing in Texas
  • Now the plan is to use the E-2 test stand at Stennis, which is able to support both vertical and horizontal rocket engine tests
  • The E-2 stand is big enough for components, but SpaceX would need a bigger stand for the whole Raptor
  • Reportedly SpaceX is working out a Space Act agreement to establish user fees, amongst other things, once an agreement is finalized the testing can begin as early as next year
  • Used For?
  • There is little information on SpaceX’s website about what the Raptor engine is or specific development plans
  • Space News reports that it would be used for deep-space missions
  • There are multiple reports that SpaceX CEO Elon Musk has mentioned the engine previously when talking about Mars missions
  • Raptor Rocket Engine, What We Know
  • Intended to power a higher performance upper stage for SpaceX launch vehicles, powered by methane and liquid oxygen (LOX)
  • Designed to produce more than 661,000 lbf (2,940 kN) thrust in vacuum, which is the space environment that the Raptor second-stage engine is designed for.
  • Multimedia
  • YouTube | Methane Rocket | Christopher Martinez
  • Further Reading / In the News
  • Stennis Space Center
  • SpaceX Signs Pact To Start Rocket Testing At NASA Stennis | UniverseToday.com

— TWO-BYTE NEWS —

Australian \’Lost World\’

  • An expedition to a remote part of northern Australia has uncovered three new vertebrate species isolated for millions of years
  • The Discovery
  • James Cook University and a National Geographic film crew were dropped by helicopter onto the rugged Cape Melville mountain range on Cape York Peninsula
  • Cape Melville, a plateau of boulder-strewn rainforest on top
  • The virtually impassable mountain range is home to millions of black granite boulders the size of cars and houses piled hundreds of metres high
  • National Geographic, the team plans to return to Cape Melville within months to search for more new species, including snails, spiders, and perhaps even small mammals
  • What Was Found
  • Leaf-tail gecko, a gold-coloured skink-a type of lizard-and a brown-spotted, yellow boulder-dwelling frog, none of them ever seen before
  • The Cape Melville Leaf-tailed Gecko, which has huge eyes and a long, slender body, is highly distinct from its relatives
  • A small boulder-dwelling frog, the Blotched Boulder-frog, which during the dry season lives deep in the labyrinth of the boulder-field where conditions are cool and moist. The tadpoles even develop within the egg and a fully formed frog hatches out in the absence of water
  • Further Reading / In the News
  • \’Lost world\’ discovered in remote Australia | Phys.org
  • Leaf-tailed gecko, golden-coloured skink and boulder-dwelling frog: New species found in Australia\’s lost world | independent.co.uk
  • Spectacular New Species Found in \”Lost World\” | news.nationalgeographic.com

How Dinosaurs Walked

  • Researchers have managed to use an advanced computer model to recreate the walking and running movements of the vast Cretaceous Argentinosaurus dinosaur
  • Argentinosaurus
  • The dinosaur lived on the then-island continent of South America somewhere between 97 and 94 million years ago, during the Late Cretaceous
  • Not much of Argentinosaurus has been recovered, but the proportions of the bones found and comparisons with other sauropod relatives allow paleontologists to estimate the its size
  • The dinosaur weighed about 80 tons, making it one of the largest known dinosaurs, and the model showed that it would have reached about 5 mph when it walked across the Earth
  • The Computer Model
  • To create this computer model, the researchers laser scanned a 40 meter-long skeleton of Argentinosaurus
  • The simulation used the equivalent of 30,000 desktop computers to allow the dinosaur to take its first steps in over 94 million years
  • The digitization of such vast dinosaur skeletons using laser scanners brings Walking with Dinosaurs to life…this is science not just animation
  • Currently, the researchers plan to use this same computer technique in order to model the steps of other dinosaurs, such as the Triceratops, Brachiosaurus and T. rex.
  • Multimedia
  • YouTube | Argentinosaurus dinosaur digital reconstruction The University of Manchester: Dr Bill Sellers | Alison Barbuti
  • YouTube | Argentinosaurus – Planet Dinosaur – Episode 5 | BBC
  • Further Reading / In the News
  • Scientists Digitally Reconstruct Movements of Largest Dinosaur in the World (Video) | Phys.org
  • Argentinosaurus | Wikipedia

— VIEWER FEEDBACK —

Human Regeneration … Soon-ish?

  • Michael Thalleen ‏@ThalleenM
  • Regrowing human body parts: The dream comes within reach | nbcnews.com
  • Sometime in the next few decades, humans may be able to regrow a finger, toe, or among the most promising targets, maybe even fresh patches of beating heart tissue
  • Research
  • A decade ago scientists demonstrated that zebrafish have the ability to repair a badly damaged heart, thanks to a particular protein that regulates the regenerative process
  • Young mice are able to regenerate toes, and the salamander can regrow a whole arm below the joint
  • In 2010, one lab showed it was possible to enhance that same regenerative response in adult mice
  • Researchers have been studying mouse toes to understand how a similar regrowth mechanism can be reactivated or imitated in adult humans
  • In Humans
  • Humans already have demonstrated some ability to regenerate body parts, very young children can fill out the tips of chopped off fingers and toes
  • In August researchers from the Gladstone Institutes showed that they could turn human scar tissue into electrically conductive tissue in a lab dish by fiddling with just a few key genes
  • Among the hurdles that lie ahead: taking that technique out of the lab and applying it to living human hearts
  • Researchers are still cautious about predicting how studies of animal regeneration will be applied to humans and it\’s dangerous to say, \’Yes, we expect to regenerate a limb\’ although the field is reaching a turning point

— CURIOSITY UPDATE —

h
+ NASA\’s Mars rover Curiosity completed its first two-day autonomous drive Monday, Oct 28
+ During an autonomous drive the rover chooses a safe route to designated waypoints by using its onboard computer to analyze stereo images that it takes during pauses in the drive
+ The autonomous drive brought Curiosity to about 80m (262 ft) from \”Cooperstown,\” an outcrop bearing candidate targets for examination with instruments on the rover\’s arm.
+ Cooperstown is about one-third of the way along the route to Mount Sharp
+ Improvements
+ A key activity planned for this week, week of Nov. 4, is uploading a new version of onboard software the third such upgrade since landing
+ Include what information the rover can store overnight to resume autonomous driving the next day.
+ It also expands capabilities for using the robotic arm while parked on slopes
+ Multimedia
+ Image Galleries at JPL and Curiosity Mulimedia
+ Social Media
+ Curiosity Rover @MarsCuriosity
+ Further Reading / In the News
+ Mars Science Laboratory: NASA\’s Curiosity Mars Rover Approaches \’Cooperstown\’ | mars.jlp.nasa.gov

SCIENCE CALENDAR

Looking back

  • November 11, 1572 : 441 years ago : Tycho\’s Supernova / SN1572 : Danish astronomer Tycho Brahe began his meticulous observations of the supernova discovered in the W-shaped constellation of Cassiopeia. (Brahe was at the beginning of his career in 1572, and it was this supernova that inspired him to devote his lifetime to making accurate measurements of the positions of the stars and planets.) First noted by Wolfgang Schuler*of Wittenberg, for two weeks it was brighter than any other star in the sky and visible in daytime. By month\’s end, it began to fade but it remained visible to the naked eye for about 16 months until Mar 1574. Thus 16th-century astronomers learned that the heavens were not immutable, as had been believed. Brahe\’s book on his observations, De Nova Stella, originated the word “nova.”
  • SN 1572 | Wikipedia

Looking up this week

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Spinal Cord Injuries & Venus Transit | SciByte 49 https://original.jupiterbroadcasting.net/20252/spinal-cord-injuries-venus-transit-scibyte-49/ Tue, 05 Jun 2012 22:18:17 +0000 https://original.jupiterbroadcasting.net/?p=20252 We take a look at new rehabilitation for spinal cord injuries, nanotech medical diagnosis, Guinness bubbles, tomato's, spacecraft updates and back into history.

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We take a look at new rehabilitation for spinal cord injuries, nanotech medical diagnosis, Guinness bubbles, tomato’s, a quiet room, tornado map, spacecraft updates and as always take a peek back into history and up in the sky this week.

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Spinal Cord injury treatment



YouTube channel Sergeytule | Credit: Courtesy of EPFL

  • The low down
  • Most spinal injuries in people do not sever the spinal cord completely
  • Spinal injuries cause paralysis because they sever or crush nerve fibers that connect the brain to neurons in the spinal cord that move muscles throughout the body
  • These fibers, or axons, are the long extensions that convey signals from one end of a neuron to another, and unfortunately, they don’t regrow in adults
  • Restoring axons’ ability to regrow using growth factors, stem cells, or other therapies has been a longstanding and elusive goal for researchers.
  • Significance
  • To approximate a spinal injury in rats, researchers made two surgical cuts in the spinal cord, severing all of the direct connections from the brain, but leaving some tissue intact in between the cuts (it wouldn’t work for a completely severed cord)
  • The rats then began a rehab regime intended to bypass the fractured freeway, as it were, by pushing more traffic onto neural back roads and building more of them
  • The physical therapy began about a week after the rats were injured, and lasted about 30 minutes a day
  • During each session, the researchers injected the animals with a cocktail of drugs to improve the function of rats’ neural circuits in the part of the spinal cord involved in leg movements
  • They then stimulated this area with electrodes to prime the spinal cord for action
  • A rat was then fitted into a harness attached to a robotic device that supported its weight and allowed it to walk forward on its hind legs to the extent that it was able
  • At first, the rats could not move their legs at all, after 2 or 3 weeks, the rodents began taking steps toward a piece of food after a gentle nudge from the robot
  • By 5 or 6 weeks, they were able to initiate movement on their own and walk to get the food
  • After a few additional weeks of intensified rehab, they were able to walk up rat-sized stairs and climb over a small barrier placed in their path
  • Rats suspended over a moving treadmill that elicited reflex-like stepping movement
  • The amount of recovery depending on making intentional movements, not just any movement
  • Additional experiments in the paper make a compelling case that the rats’ recovery is due to new neural connections forming to create a detour around the injury
  • This study suggests that all three components of the rehab strategy are needed; the drugs, the electrical stimulation, and the robot-assisted physical therapy
  • Of Note
  • A case study published last year reported some recovery of voluntary movements in a man paralyzed in a vehicle accident, after he underwent a combination of electrical stimulation and physical therapy
  • Two more patients are undergoing similar rehab now, and his group hopes to add drug therapy to enhance nerve repair in the future
  • For the rats they could only make voluntary movements while the electrical stimulation was turned on, and the same was mostly true of the human patient in case study
  • YouTube
  • Robotic Rehab Helps Paralyzed Rats Walk Again | Sergeytule
  • Further Reading / In the News
  • Robotic Rehab Helps Paralyzed Rats Walk Again | news.sciencemag.org

— NEWS BYTE —

Nanotechnology meets medical diagnosis



Credit: Stephen Chou/Analytical Chemistry

  • The low down
  • A common biological test called immunoassay, mimics the action of the immune system to detect the presence of biomarkers
  • When biomarkers are present they produce a fluorescent glow (light) that can be measured in a laboratory
  • The greater the glow, the more of the biomarker is present; however, if the amount of biomarker is too small, the fluorescent light is too faint to be detected
  • Princeton researchers have tackled this limitation by using nanotechnology to greatly amplify the faint fluorescence
  • Significance
  • The key to the breakthrough lies in a new artificial nanomaterial called D2PA
  • The new material consists of a series of glass pillars in a layer of gold, speckled on their sides with gold dots and capped with a gold disk.
  • The sides of each pillar are speckled with even tinier gold dots about 10 to 15 nanometers in diameter Each pillar is just 60 nanometers in diameter, 1/1,000th the width of a human hair
  • The pillars are spaced 200 nanometers apart and capped with a disk of gold on each pillar
  • Using this material laboratory test used to detect disease and perform biological research could be made more than 3 million times more sensitive
  • Increased performance could greatly improve the early detection of cancer, Alzheimer’s disease and other disorders by allowing doctors to detect far lower concentrations of telltale markers than was previously practical.
  • Of Note
  • When a sample such as blood, saliva or urine is added to small glass vials containing antibodies that are designed to “capture” or bind to biomarkers of interest in the sample
  • Another set of antibodies that have been labeled with a fluorescent molecule are then added to the mix
  • When biomarkers are not present in the vials the fluorescent detection antibodies do not attach to anything and are washed away
  • This new technology could play a significant role in other areas of chemistry and engineering, from light-emitting displays to solar energy harvesting
  • Further Reading / In the News
  • Nanotechnology breakthrough could dramatically improve medical tests

— TWO-BYTE NEWS —

The rise and fall of Guinness bubbles

Credit : E. S. Benilov, et al.

  • The low down
  • Why do the bubbles in a glass of stout beer such as Guinness sink while the beer is settling, even though the bubbles are lighter than the surrounding liquid?
  • Stout beers such as Guinness foam due to a combination of carbon dioxide and nitrogen bubbles, while other beers foam due only to carbon dioxide bubbles
  • In 2004 high-speed photography proved that bubbles do indeed sink
  • Significance
  • Simulations of the elongated vortices in a pint glass, where bubbles sink near the glass wall, and an anti-pint glass, where bubbles rise near the wall
  • A team of mathematicians from the University of Limerick has shown that the sinking bubbles result from the shape of a pint glass
  • As the glass narrows downwards and causes a circulation pattern that drives both fluid and bubbles downwards at the wall of the glass
  • It is not just the bubbles themselves that are sinking (in fact, they’re still trying to rise), but the entire fluid is sinking and pulling the bubbles down with it.
  • Of Note
  • Researchers are still uncertain of the specific mechanism responsible for reducing the bubble density near the wall for the pint geometry and increasing it for the anti-pint one.
  • The same flow pattern occurs with other types of beers, but the larger carbon dioxide bubbles are less subject to the downward drag than the smaller nitrogen bubbles in stout beers.
  • For a tilted straight-sided glass the side in the direction of the tilt represents the normal situation of a pint glass, while the opposite side is the “anti-pint” – and bubbles can be seen to both rise and fall in the same glass.
  • Further Reading / In the News
  • Irish mathematicians explain why Guinness bubbles sink | Phys.org
  • Falling stout bubbles explained | BBC News

You say tomato I say potato?

  • The low down
  • The genome of the tomato has been sequenced one from the “Heinz 1706” tomato as well as the sequence of a wild relative
  • Researchers report that tomatoes possess some 35,000 genes arranged on 12 chromosomes
  • Significance
  • The team has captured virtually all the genes for various characteristics, such as taste, natural pest resistance or nutritional content
  • Now that the genome sequence of one variety of tomato is known, it will also be easier and much less expensive for seed companies and plant breeders to sequence other varieties
  • The sequencing of the tomato genome has implications for other plant species such as Strawberries, apples, melons, bananas and many other fleshy fruits, share some characteristics with tomatoes
  • Information about the genes and pathways involved in fruit ripening can potentially be applied to them, helping to improve food quality, food security and reduce costs
  • Of Note
  • The gene sequencing confirms that the tomato is a fruit, not a vegetable
  • The tomato shares 92% of its more than 34,000 protein-coding genes with its close relative, the recently sequenced potato
  • Further Reading / In the News
  • Tomato genome fully sequenced | phys.org
  • ScienceShot: Tapping the Tomato’s Secrets | news.sciencemag.org

Hear your own heart beat



Credit: Renee Jones Schneider / Minneapolis Star Tribune.

56 years of Tornado’s



Credit: John Nelson

  • The low down
  • Using information from data.gov, tech blogger John Nelson has created this spectacular image of tornado paths in the US over a 56 year period
  • The storms are categorized by F-scale with the brighter neon lines representing more violent storms
  • The tracker shows straight lines, but it is only because the data used in this study only tracked start and stop points
  • Also provided are some stats on all the storms in the different categories
  • Further Reading / In the News
  • Stunning Visualization of 56 Years of Tornadoes in the US | UniverseToday.com
  • Data.gov

SPACECRAFT UPDATE

Virgin Galactic’s SpaceShipTwo receives permit



Credit: VirginGalactic YouTube Channel | Credit: TSC

  • The low down
  • Virgin Galactic’s flight system consists of two vehicles, SpaceShipTwo and its WhiteKnightTwo carrier aircraft
  • SpaceShipTwo is designed to launch six passengers and two pilots into suborbital space and offer a few minutes of weightlessness, then return to Earth
  • Significance
  • Virgin Galactic’s SpaceShipTwo suborbital space tourism vehicle has won U.S. regulatory approval to begin powered flight testing of the rocket-propelled craft later this year
  • The experimental launch permit from the U.S. Federal Aviation Administration (FAA) authorizes the Scaled Composites development team "to progress to the rocket-powered phase of test flight
  • Before the rocket-powered testing phase they will perform aerodynamic performance of the spacecraft with the full weight of the rocket motor system on board
  • Integration of key rocket motor components, already begun during a now-concluding period of downtime for routine maintenance, will continue in the autumn
  • Multimedia
  • YouTube Video : SS2 First Feather Flight, Mojave, May 2011)
  • Further Reading / In the News
  • FAA Clears Virgin Galactic to Begin SpaceShipTwo Rocket Test Flights | Space.com

GRAIL Moon mission extension



Credit: NASA/JPL-Caltech/MIT

Dragon SpaceCraft Splashdown



Credit: YouTube Channel ReelNASA

SCIENCE CALENDAR

Looking back

  • June 09 1822 : 190 years ago : False teeth : Charles Graham received the first patent for false teeth. His were not the first false teeth in use, however. In the Colonial years, rotten teeth were considered the cause of many illnesses, and they would be extracted. Varied ways of replacing them were tried. For example, George Washington had at least four sets of false teeth (though none were wooden, despite a myth to that effect). Washington’s first dentures were made using human teeth inserted into carved ivory. In 1789, dentist John Greenwood of New York, made Washington another set from gold, hippo teeth, and hippo and elephant ivory. The one natural remaining tooth was a molar, and a hole was left for that.
  • June 08 1937 : 75 years ago : Titan Arum : A specimen of the world’s largest flower, first bloomed in the U.S. in the NY Botanical Garden. The giant Sumatran Titan Arum, Amorphophallus titanum, measured 8½-ft high and 4-ft diam. Its putrid rotting-corpse fragrance repelled visitors. Native in Sumatran jungles of Indonesia, it is known there as the “corpse flower.” Dr. Odoardo Beccari, an Italian botanist, was the first western expert to find the Titan Arum in the Pading Province during 1878. Seeds he sent back to his patron, the Marchese Corsi Salviati were grown in Italy, and a few plants were at Beccari’s request sent to Kew Gardens in England in 1879. One of those seedlings flowered in June 1887. Another plant bloomed there in 1926, to wide attention.

Looking up this week : You May Have Seen

Looking up this week

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Venus Transit & Dragon Spacecraft | SciByte 48 https://original.jupiterbroadcasting.net/20027/venus-transit-dragon-spacecraft-scibyte-48/ Tue, 29 May 2012 22:29:24 +0000 https://original.jupiterbroadcasting.net/?p=20027 We take a look at the Venus transit next Tuesday, water in our solar system, creative noise, a Dragon spacecraft update and more!

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We take a look at the Venus transit next Tuesday, a rare rabbit, water in our solar system, creative noise, a dinosaur with tiny arms, a Dragon spacecraft update and as always take a peek back into history and up in the sky this week.

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Venus Transit



YouTube channels : extractorrr | ScienceAtNASA

— NEWS BYTE—

Rare Rabbit



Credit: UnivDeleware Channel | Credit: Kyle McCarthy / World Wide Fund for Nature Japan

—TWO-BYTE NEWS—

Water in our solar system



Credit: Kevin Hand (JPL/Caltech), Jack Cook (Woods Hole Oceanographic Institution), Howard Perlman (USGS)

Creative Noise

  • The low down
  • A professor of business administration at the University of Illinois has been studying how the level of ambient noise affects consumer sales
  • The research has shown that a moderate level of noise not only enhances creative problem-solving but also leads to a greater adoption of innovative products in certain settings
  • Significance
  • The study shows that noise levels equivalent to a passenger car traveling on a highway, about 70 decibels, enhances performance on creative tasks
  • Researchers also studied how a high level of noise, equivalent to traffic noise on a major road, 85 decibels, hurts creativity by reducing information processing.
  • The 70 decibel level is enough of a distraction that it helps you with abstract out-of-the-box thinking, allowing for increased creativity
  • A very high level of noise becomes a distraction that affects the thought process
  • Further Reading / In the News
  • Scientists Say Ambient Noise Affects Creativity | sci-news.com
  • Is Noise Always Bad? Exploring the Effects of Ambient Noise on Creative Cognition | Journal of Consumer Research

Dinosaur with tiny arms

–SPACECRAFT UPDATE–

Dragon Spacecraft



YouTube Channels : NASATelevision |

–SCIENCE CALENDAR–

Looking back

  • June 02,1889 : 123 years ago : Hydroelectricity : A hydroelectric power plant generated alternating current electricity which was for the first time made available to consumers at a significant distance from its origin. A 13 mile power line linked the Willamette Falls Electric Co. power plant to Portland, Ore. Two 300 h.p. Stilwell & Bierce waterwheels together drove a single phase, 720 kilowatt generator. It was not the first hydroelectric power plant, for one had been demonstrated in Appleton, Wisc., 30 Sep 1882 with a small dynamo. Rather, it is the use of alternating current that is significant, for this makes possible long-distance transmission that overcomes the problems of direct current. AC generators driven by steam power had been in use elsewhere since 1886.
  • June 01, 1947 : 65 years ago : Photosensitive glass : The development of photosensitive glass was announced publicly in Corning, N.Y. It had first been made by the Corning Glass Works in Nov 1937. The glass is crystal clear, but exposure to ultraviolet light followed by heat treatment forms submicroscopic metal particles creating an image within the glass. This is believed to be the most durable form of photographic medium, and to be as permanent as the glass itself.

–Looking up this week–

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