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Why is Venus the hottest planet even though Mercury is closer to the sun? July 27, 2007

Posted by ionicflux in Science.
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Mercury is closest to the sun, this is true. However, because of its proximity to the sun it lacks an atmosphere. Mercury’s gaseous molecules reached escape velocity long ago and the atmosphere was ‘burned off’ leaving a vacant wasteland of rock with a similar surface to the earth’s moon. There is nothing to hold in solar radiation, thus is flies out into space.

venus.jpgVenus Venus is a different story. Its atmosphere is primarily composed of carbon dioxide – the primary green house gas -, which acts like a one-way door. The solar heat enters, but it cannot leave. Thus, an oven is created. This is why Venus has no water. Pictures suggest that Venus once had an aqueous environment, but because of climatic changes and intense heat…. it evaporated.

Also, because of an overactive core, Venus seems to recreate its continents every X years. So, we do not expect to find fossils or many bacteria.

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Spectacular Video of A Meteor July 24, 2007

Posted by ionicflux in Science.
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Video of space debris breaking up in the atmosphere LIVE during Good Day Colorado around 6:15 a.m. Thursday, January 4, 2007

SkyFOX pilot Rob Marshall and photojournalist Josh White captured the event at about 6:15 a.m. Mountain Standard Time while they were flying over Denver.

Revolutionizing Outer Space Style July 23, 2007

Posted by ionicflux in People, Science.
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A new spacesuit for future astronauts is being developed by MIT.

For 40 years astronauts have been lumbering around space in the same heavy, energy-sapping suits — and that is what Dava Newman, professor of aeronautics, astronautics and engineering systems at the Massachusetts Institute of Technology, wants to change. Newman and her team of researchers have just unveiled a promising new prototype called the BioSuit: a sleek, white, clingy outfit, whose revolutionary design has the potential to make astronauts feel as agile and au courant as Spider-Man. (more)..

The latest Cosmic Discovery: Say hello to Frank July 21, 2007

Posted by ionicflux in Discovery, Science.
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There’s mighty Jupiter, dubbed after the paramount god of Roman mythology. Pluto, whose name was inspired by the god of the underworld. Mercury, its title bestowed in honor of the winged messenger.

Then there’s Frank.

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The oddball name has been temporarily given to Saturn’s 60th moon, the European Space Agency (ESA) said here on Friday.

The newly-discovered satellite of the Solar System’s second largest planet was spotted by astronomers led by Carl Murray of Queen Mary College at the University of London. (more)…

Magic or Physics July 17, 2007

Posted by ionicflux in Science, Video.
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Do Math Quickly in Your Head July 4, 2007

Posted by ionicflux in People, Science.
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Some tricks in doing quick math in your head.

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1. Round Off to a Quick Approximation

2. Break Up Into Parts

3. Omit Words

4. Quickly Find Three Common Percentages

5. Finding Percentages by Using 100’s

The Dark Matter Universe July 3, 2007

Posted by ionicflux in Computer/IT, Science.
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3D simulation map of the Lyman-Alpha Forest

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Frozen frog thawed back to life December 8, 2006

Posted by ionicflux in Science.
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A TREE frog has miraculously survived after being frozen rock solid.

axelfrog.jpgThe tiny frog was found covered in a layer of ice in a walk-in freezer – set at -18C – at a Darwin cafeteria.

When put out to defrost it fully recovered and started breathing.

“I couldn’t believe it,” Sue Hoddinott, who found the amphibian, said.

“He was completely frozen rock solid.

“When I found him I thought ‘Poor little thing’, and I went to put it in the bin.

“But a friend said not to, as she had seen on TV that they can come back to life when defrosted.

“I told her she had been watching too many movies, but I did it anyway.

“She ran her finger over his back to wipe the ice off and he started breathing again — it was amazing.”

Ms Hoddinott, 47, of Karama, is a chef at Charles Darwin University. The frog was thawed back to life on Monday morning but its frost-bitten toes and feet are not functioning.

FrogWatch NT co-ordinator Graeme Sawyer said it was an unusual story.

But he did not rule out the possibility of a frog being revived after it was frozen.

“I’ve never heard of it happening with Australian species but there are American frogs that can be defrosted and come back to life,” he said.

Mr Sawyer said the tree frog looked like the litoria rothii species.

“(But) it may be an import from Queensland or somewhere,” he said.

“If it was in a freezer it may have come in the same way the ‘banana box frogs’ turn up at markets around Australia.”

The Giant Mexican Telescope November 27, 2006

Posted by ionicflux in News, Science.
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Mexican President Vicente Fox has inaugurated a giant telescope that could help scientists uncover clues about the origins of the Universe.

The telescope, which resembles a gigantic satellite dish, sits high in the mountains of central Puebla state.

“This telescope will allow us to make fundamental discoveries about the formation and evolution of galaxies, about the formation and evolution of stars, and about the origin of the Universe itself,” National Astrophysics Institute Director Jose Guichard said during the inauguration. (more)

Israel developing killer bionic hornet November 17, 2006

Posted by ionicflux in Computer/IT, Inventions, Science.
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Israel is using nanotechnology to try to create a robot no bigger than a hornet that would be able to chase, photograph and kill its targets, an Israeli newspaper reported.

The flying robot, nicknamed the “bionic hornet”, would be able to navigate its way down narrow alleyways to target otherwise unreachable enemies such as rocket launchers, the daily Yedioth Ahronoth said.

It is one of several weapons being developed by scientists to combat militants, it said. Others include super gloves that would give the user the strength of a “bionic man” and miniature sensors to detect suicide bombers.