dust devil – Jupiter Broadcasting https://www.jupiterbroadcasting.com Open Source Entertainment, on Demand. Thu, 26 Apr 2012 17:43:34 +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 dust devil – Jupiter Broadcasting https://www.jupiterbroadcasting.com 32 32 Martian Dust Devils & The Shuttles | SciByte 43 https://original.jupiterbroadcasting.net/18926/martian-dust-devils-the-shuttles-scibyte-43/ Tue, 24 Apr 2012 21:06:56 +0000 https://original.jupiterbroadcasting.net/?p=18926 We take a look at aurora on Uranus, Martian dust devils, counting penguins, Apollo 8 images, the high altitude jet stream, the latest on the shuttles, and more!

The post Martian Dust Devils & The Shuttles | SciByte 43 first appeared on Jupiter Broadcasting.

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We take a look at aurora on Uranus, Martian dust devils, counting penguins, Apollo 8 images, the high altitude jet stream, the latest on the shuttles, and as always take a peek back into history and up in the sky this week.

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Show Notes:

Uranus Aurora



Credit: Laurent Lamy

*— NEWS BYTE — *

Martian Dust Devils

Credit: MSSS / JPL / NASA

Studying the high-altitude jet stream



Credit: NASA Wallops

  • The low down
    • After several days of delays due to the weather NASA launched the 5 ATREX rockets within 5 min of each other on March 27
    • Each of the rockets released a chemical tracer that was used to get more data of the high-altitude jet stream located 60–65 mi [95–105 km]
    • Two of the rockets also contained instruments to measure temperature and pressure
    • Hopefully this data will help us to better understand the processes behind this jet stream
  • Significance
    • The high-altitude jet stream that this project was looking at is much higher than the one in the nightly weather report
    • The upper jet-stream typically has winds of about 200–300 mph [320–480 km/hr] and is a region of electrical turbulence that can affect satellites and radio
  • Of Note
    • NASA will release more information about the outcome of the mission after scientists have had time to review the data
  • Multimedia
  • Further Reading / In the News

*— TWO-BYTE NEWS — *

Counting Penguins from space



Credit: (left) DigitalGlobe; (right) British Antarctic Survey

  • The low down
    • A simple snap of a photograph of a penguin colony, and some marking can help scientist accurately count the number of penguins in a colony
    • Those numbers are hard to get however in remote places, especially in the Antarctic
    • A new technique uses satellite imaging to report results
  • Of Note
    • Scientists have now found twice as many Emperor penguins than thought to exist
    • This brings the total colonies to 44 (7 new ones) and ~595,000 (+/- 81,000)
  • Further Reading / In the News

The view from Apollo 8

  • The low down
    • December 24, 1968, Apollo 8 : Commander Frank Borman and crew members William A. Anders and James A. Lovell, Jr. became the first humans to photograph the Earth rising over the moon.
    • This video recreates what they saw, and interweaves the photographs they took and hear the original audio recording
  • Multimedia

Asteroid Lutetia Flyby

  • The low down
    • Images from ESA’s robotic Rosetta spacecraft were compiled to make a video of the bly-by it made
  • The mission was focused on determining the origins of the asteroid and it’s unusual colors by taking data and images
  • Multimedia

SPACECRAFT UPDATE

The Shuttle Shuffle



Credit: Ken Kremer

Private deliveries to the Space Station

  • The historic flight of the first commercial transport to the International Space Station, The Dragon, now has a launch date of around May 7.

SCIENCE CALENDER

Looking back

  • April 25, 1990 : 22 years ago : Hubble Space Telescope Deployed : In 1990, the $2.5 billion Hubble Space Telescope was deployed in space from the Space Shuttle Discovery into an orbit 381 miles above Earth. It was the first major orbiting observatory, named in honour of American astronomer, Edwin Powell Hubble. It was seven years behind schedule and nearly $2 billion over budget. In orbit, the 94.5-in primary mirror was found to be flawed, giving blurred images and reduced ability to see distant stars. However, correcting optics were successfully installed in 25 Dec 1993. The telescope 43-ft x 14-ft telescope now provides images with a clarity otherwise impossible due to the effect of the earth’s atmosphere. Instrument packages capture across the electromagnetic spectrum.

Looking up this week

The post Martian Dust Devils & The Shuttles | SciByte 43 first appeared on Jupiter Broadcasting.

]]> Amazon & Martian Weather | SciByte 39 https://original.jupiterbroadcasting.net/18337/amazon-martian-weather-scibyte-39/ Tue, 27 Mar 2012 21:37:11 +0000 https://original.jupiterbroadcasting.net/?p=18337 We take a look at hiking in the Amazon, swimming robots, Lunar images, Martian weather, Apollo sites, Space Station precautions, viewer feedback, and more!

The post Amazon & Martian Weather | SciByte 39 first appeared on Jupiter Broadcasting.

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We take a look at hiking in the Amazon, swimming robots, Lunar images, Martian weather, Apollo sites, Space Station precautions, viewer feedback, and as always take a peek back into history and up in the sky this week.

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Show Notes:

Hiking the Amazon

*— NEWS BYTE — *

Robotic Jellyfish

  • The low down
  • American researchers have created a robotic jellyfish, constructed from a set of smart materials named Robojelly
  • Its characteristics could make it ideal to use in underwater search and rescue operations
  • The simply swimming action of the jellyfish makes it an ideal invertebrate to base a vehicle on
  • The smart materials offer the ability to change shape or size as a result of a stimulus, and carbon nanotubes
  • Significance
  • This prototype used commercially-available shape memory alloys that “remember” their original shape
  • They then coated those with carbon nanotubes and coated with a platinum black powder.
  • The robot is powered by heat-producing chemical reactions between the oxygen and hydrogen in water and the platinum on its surface
  • Heat given off from the reaction transfers to the artificial muscles in the robot allowing the robot to transform into different shapes
  • The RoboJelly still needs development to achieve full functionality and efficiency
  • Robots of the floating kind
  • Another interesting robot is a quasi-autonomous floating robot
  • It is made to land on a lake, propel itself around and gather data about the water and atmosphere as it goes
  • The robot itself weighs about 100 pounds, and carry 150 pounds’ worth of sensing equipment
  • In a video it can turn circles and navigate around a lake
  • Currently it can be controlled from anywhere around the world using an Internet connection
  • The team is however working on making it more autonomous, even have a sense of curiosity to better investigate certain places
  • This type of robot would be useful science and military missions on Earth or for extraterrestrial lake landing probes, like Titan
  • It could also be used for help officials survey the cleanup of dangerously polluted water in munitions dumps and mines
  • Multimedia
  • YouTube VIDEO : Bioinspired Robojelly fuelled by hydrogen
  • YouTube VIDEO : Moon Jellyfish at the Vancouver Aquarium
  • YouTube VIDEO : Wolfgang Fink’s Robotic Lake Lander
  • Further Reading / In the News
  • Jellyfish inspires latest ocean-powered robot (w/ video) @ physorg.com
  • Jellyfish-like Robot Takes a Very Simple Swim @ pcmag.com
  • Robojelly: Hydrogen-powered robot jellyfish is squishy awesome @ news.cnet.com
  • Self-Propelled Floating Robot Could Explore Saturn Moon Titan @ space.com

*— TWO-BYTE NEWS — *

First MoonKAM Image comes in from the Lunar Orbiters Ebb & Flow

Martian Clouds

Apollo landing sites up close

Space Station takes precautionary shelter

*— Updates — *

Martian Storm Chasing

*— VIEWER FEEDBACK — *

Ocean Salinity

  • Thanks to Mrs. Grubb’s Class’ science
  • Asked about the word for when you can’t dissolve any more of a substance into water
  • Also asked about the oceans salinity content across the oceans, and the locations of the saltiest places.
  • Saturation Point
  • Compounds that are called insoluble means they have poor or very poor solubility
  • When the solution can no longer dissolve or break down the bonds of a solute, it is called the saturation point
  • The saturation point, maximum concentration of a solution, can change with temperature, pressure and the chemical properties of molecules in the solution
  • There are also rare instances of molecules that don’t have a saturation point, they are called fully miscible
  • Supersaturation
  • Under the right conditions you can actually exceed the saturation point, like carbonated water or soda pop.
  • They are filled under higher than atmospheric pressure, so when you open it and the pressure drops the carbon dioxide in the water escapes the solution
  • Supersaturated solutions of sugar and water are sometimes used to make rock candy
  • The Oceans salinity
  • The salinity levels of the ocean are different all over the world and interact with the oceans flow
  • Changes in salt concentration at the ocean surface affect the weight of surface waters. Fresh water is light and floats on the surface, while salty water is heavy and sinks
  • Saltiest bodies of water
  • Don Juan Pond in Victoria Land, Antarctica. At a possible 18 times the salinity of the ocean, Don Juan never freezes.
  • Lake Assal (Djibouti) in central-eastern Djibouti, Garabogazkol in Turkmenistan, and the Dead Sea on the border of Jordan and Israel
  • Multimedia
  • YouTube VIDEO :
  • IMAGE GALLERY: @
  • IMAGE : @
  • Further Reading / In the News
  • Salinity @ NASA.gov

SCIENCE CALENDER

Looking back

  • Mar 30, 239 BC : 2251 years ago : Halley’s Comet : In 239, B.C., was the first recorded perihelion passage of Halley’s Comet by Chinese astronomers in the Shih Chi and Wen Hsien Thung Khao chronicles. Its highly elliptical, 75-year orbit carries it out well beyond the orbit of Neptune and well inside the orbits of Earth and Venus when it swings in around the Sun, travelling in the opposite direction from the revolution of the planets. It was the first comet that was recognized as being periodic. An Englishman, Edmond Halley predicted in 1705 that the comet that appeared over London in 1682 would reappear again in 1759, and that it was the same comet that appeared in 1607 and 1531. When the comet did in fact reappear again in 1759, as correctly predicted, it was named (posthumously) after Halley | Comet Halley | Comet Halley @ astropix.com | Reproduction of original plates of Comet Halley 25 May 1910 @ esa.int |
  • Mar 31, 1889 : 123 years ago : Eiffel Tower : In 1889, the Eiffel Tower, Paris, France, was inaugurated, becoming the world’s tallest tower of its era. With a height of 300-m (986-ft), it remained the world’s tallest structure until surpassed by the Empire State Building, 40 years later. The designer Gustave Eiffel, 56, celebrated by unfurling a French flag at the top of the tower. The immense iron latticework design was chosen unanimously from 700 proposals submitted in a competition. Construction took from 26 Jan 1887 to 31 Mar 1889, using 300 steel workers. It was erected for the Paris Exposition of 1889, which had 1,968,287 visitors. Elevators were powered from machinery in the basements of the eastern and western pillars | Record breaking structure | Stages of Construction | This Day in History @ 32s |

Looking up this week

The post Amazon & Martian Weather | SciByte 39 first appeared on Jupiter Broadcasting.

]]> Solar Storms & Higgs Boson | SciByte 37 https://original.jupiterbroadcasting.net/17947/solar-storms-higgs-boson-scibyte-37/ Tue, 13 Mar 2012 23:00:54 +0000 https://original.jupiterbroadcasting.net/?p=17947 We take a look at recent solar activity, new ideas and imaging of the Titantic, Higgs Boson particles, Dinosaur feathers, dust devils on Mars, and more!

The post Solar Storms & Higgs Boson | SciByte 37 first appeared on Jupiter Broadcasting.

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We take a look at recent solar activity, new ideas and imaging of the Titantic, Higgs Boson particles, Dinosaur feathers, transparent electrodes, dust devils on Mars, viewer feeedback and as always take a peek back into history and up in the sky this week.

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Support the Show:

   

Show Notes:

The power of the Sun

*— NEWS BYTE — *

How the moon might have affected the Titanic

  • The low down
  • There is some evidence that and unusually close approach by the moon on Jan. 4, 1912, may have caused abnormally high tides
  • An uncommon event occurred on that Jan. 4 when the moon and sun lined up in such a way their gravitational pulls enhanced each other, well-known as a “spring tide"
  • Significance
  • Researchers looked to see if configuration maximized the moon’s tide-raising forces on Earth’s oceans enhanced tides caused increased glacial calving to reach the shipping lanes by April
  • Normally, icebergs can not move southward until they’ve melted enough to re-float or a high enough tide frees them a process that can take several years
  • However the unusually high tide in Jan. 1912 would have been enough to dislodge many of those icebergs and move them back into the southbound ocean currents
  • The high tide would have allowed them to travel southward much faster than typical, could explain the abundant icebergs in April of 1912
  • * Of Note*
  • Researchers have recently assembled what’s believed to be the first comprehensive map of the entire 3-by–5-mile Titanic debris field
  • Sonar imaging and more than 100,000 photos taken from underwater robots have been assembled to create the map
  • The mapping took place in the summer of 2010 during an expedition to the Titanic led by RMS Titanic Inc., the legal custodian of the wreck who was joined by other groups, as well as the cable History channel
  • Details on the new findings have not being revealed yet, the network will air them in a two-hour documentary on April 15, exactly 100 years after the Titanic sank
  • Further Reading / In the News
  • Full Titanic site mapped for 1st time @ physorg.com
  • The iceberg’s accomplice: Did the moon sink the Titanic? @ physorg.com

HiggsBoson

*— TWO-BYTE NEWS — *

More Dinosaur feathers get color

  • * You might Recall *
  • Feedback & Space Lego’s | SciByte 31 (Jan 31, 2012) – Dinosaur feather colors
  • The low down
  • A team of American and Chinese researchers have uncovered the color and detailed feather pattern for the Microraptor, a pigeon-sized, four-winged dinosaur that lived about 130 million years ago
  • Four-winged dinosaur’s feathers were black with iridescent sheen
  • The fossilized plumage, which had hues of black and blue like a crow, it the earliest record of iridescent feather color
  • Significance
  • Feather color is produced partially by arrays of pigment-bearing organelles called melanosomes, melanosome’s structure is constant for a given color
  • Using the power of scanning electron microscopes, paleontologists have begun to analyze the shape of the fossilized melanosemos and compating then to living birds.
  • Paleontologists have also made predictions about the purpose of the dinosaur’s tail
  • Once thought to be teardrop-shaped used in flight is actually much narrower with two elongate feathers
  • Researchers not believe it to be ornamental, and used in social interactions like courtship
  • * Of Note*
  • Although its anatomy is very similar to birds, Mircroraptor is considered a non-avian dinosaur placed in the group of dinosaurs called dromaeosaurs that includes Velociraptor
  • Previously the Microraptor was considered a nocturnal animal, but glossy plumage is not a trait found in modern day birds.
  • Further Reading / In the News
  • ScienceShot: Flashy Feathers @ Sciencemag.org
  • Four-winged dinosaur’s feathers were black with iridescent sheen @ physorg.com

Transparent Electrodes

  • The low down
  • Scientists have shown that ultra-thin sheets of an exotic material remain transparent and highly conductive even after being deeply flexed 1,000 times and folded and creased like a piece of paper.
  • The basic structural is a five-layer sandwich made up of alternating single-atom sheets of selenium and bismuth stacked on top of each other as thicker samples are made
  • Selenium-selenium bonds between the units are weak which provides an overall material to flex durably without being damaged
  • Significance
  • Experiments also showed that bismuth selenide does not degrade significantly in humid environments or when exposed to oxygen treatments that are common in manufacturing
  • This material will solve the problem modern transparent electrodes on the surfaces of most cells as they are either too fragile or not transparent or conducting enough,
  • In solar cells roughly half the solar energy that hits the Earth comes in the form of infrared light, and few of today’s solar cells are able to collect it
  • It may also be useful in communications devices, by improving infrared sensors common in scientific equipment and aerospace systems.”
  • * Of Note*
  • The combination has been testing with sheets of bismuth and selenium, each just one atom thick, to form five-layer units.
  • The bonds between the units are weak, allowing the overall material to flex while retaining its durability
  • The material itself conducts electricity only on its surface while its interior remains insulating and is as good as gold as an electrical conductor
  • Further Reading / In the News
  • Exotic material shows promise as flexible, transparent electrode @ physorg.com

Martian Dust Devil

  • The low down
  • The Mars Reconnaissance Orbiter has been examining Mars with six science instruments since 2006
  • Mars orbiters, rovers and landers have all captured devils in action before
  • A towering dust devil, casts a serpentine shadow over the Martian surface in an image acquired by the High Resolution Imaging
  • Significance
  • Unlike a tornado, a dust devil typically forms on a clear day
  • The ground is heated by the sun, warming the air just above the ground, heated air near the surface rises quickly through a small pocket of cooler air above it and the air may begin to rotate, if conditions are just right.
  • It lofted a twisting column of dust more than half a mile [800 meters] high, and had approximately a 90ft [30 yards] radius Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter
  • * Of Note*
  • Like on Earth, winds on Mars are powered by solar heating
  • Mars is now farthest from the Sun, and exposure to the Sun’s rays is now less, the dust devils are still moving dust around on Mars’ surface
  • This mission has returned more data about Mars than all other orbital and surface missions combined and can reveal features as small as a desk
  • More than 21,700 images taken by HiRISE are available for viewing on the instrument team’s website
  • Twitter : HiRISE@HiRISE
  • Further Reading / In the News
  • Huge Dust Devil on Mars Captured in Action @ UniverseToday.com
  • Mars orbiter catches twister in action @ PhysOrg.com
  • Photo from NASA Mars orbiter shows wind’s handiwork (Jan 2012) @ PhysOrg.com

Fossilized circle of life

Accurate Clock

  • The low down
  • Atomic Clock – A precision clock that depends for its operation on an electrical oscillator regulated by the natural vibration frequencies of an atomic system
  • A new time-keeping device is tied to the orbiting of a neutron around a nucleus of an atom
  • The clock would remain accurate to within 1/20th of a second over 14billion years, making it nearly 100 times more accurate than the best atomic clocks we have now
  • You might ask or note that ‘Neutrons’ do not ‘orbit’, that the orbiting items are electrons
  • Scientists are proposing to use lasers to orient the electrons in a specific way, then observing the neutrons as they rotate around the nucleus
  • Because the neutron is so close to the center of the atom the oscillation rate is nearly unaffected by external perturbations compared to the electron
  • Multimedia
  • YouTube VIDEO : Atom Animation
  • Further Reading / In the News
  • Proposed nuclear clock may keep time with the Universe @ spacedaily.com
  • Proposed nuclear clock may keep time with the Universe @ physorg.com

SPACECRAFT UPDATE – GRAIL Moon Probes Ebb and Flow

*— VIEWER FEEDBACK — *

Archeology in Space

SCIENCE CALENDER

Looking back

  • March 19 1800 : 212 years ago : Electric eels : Electric eels were captured by Alexander von Humoldt with Aimé Bonpland. They were on a five-year expedition in the jungles of South America, on the way to the Orinoco river, where at Calabozo they discovered swamps crowded with electric eels, Electrophorus electricus. During their scientific investigation of the behaviour of the eels, the scientists received massive electric shocks. Humboldt reported a severe lack of feeling in his joints for the better part of a day after standing directly on an electric eel. They learned that horses had been killed by them. Humboldt published an article Observation on the Electric Eel of the New World in 1808
  • March 16, 1926 : 86 years ago : Goddard Rocket : The first US liquid-fuel rocket flight was launched by Robert Goddard in a field in Auburn, Mass. He thought stable flight could be obtained by mounting the rocket ahead of the fuel tank. The tank was shielded from the flame by a metal cone and was pulled behind the rocket by the lines for gasoline fuel and oxygen. The design worked, but did not produce the hoped-for stability. The rocket burned about 20 seconds before reaching sufficient thrust (or sufficiently lightening the fuel tank) for taking off. During that time it melted part of the nozzle. It took off to a height of 41-ft, leveled off and within 2.5 seconds hit the ground 184 feet away, averaging about 60 mph. The camera ran out of film, so no photographic record of that flight remains.

Looking up this week

The post Solar Storms & Higgs Boson | SciByte 37 first appeared on Jupiter Broadcasting.

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