Sunlight is way older than you think

May 15, 2015

So it turns out that light from the very core of our Sun actually takes around 170 years (and 8 minutes) to reach Earth!

See why …

There’s a Fish Hidden in This Video

May 14, 2015

Camouflage is really cool. And this clip is no exception …

The Dangers of Sitting

May 11, 2015

You’ve probably heard by now that sitting is bad for you, but do you know why? Take 60 seconds and let this video tell you why it’s so bad.

The Fermi Paradox — Where Are All The Aliens?

May 7, 2015

The Fermi Paradox is really cool. There is a great written explanation of it here.

Or you could also check out this clip:

Worm Shoots Its Appendage over Man’s Hand

May 5, 2015

This is a marine ribbon worm.

The weapon of the ribbon worm, or Nemertea, is a proboscis (elongated appendage) that the worm uses to snag and attach itself to its prey (sometimes with venom!). Basically, that proboscis is like a muscle inside of them that can dart out when the body contracts to attack prey.

How to control someone else’s arm with your brain

May 3, 2015

Greg Gage is on a mission to make brain science accessible to all. In this fun, kind of creepy demo, the neuroscientist and TED Senior Fellow uses a simple, inexpensive DIY kit to take away the free will of an audience member. It’s not a parlor trick; it actually works. You have to see it to believe it.

Why do they call it “Earth”?

April 22, 2015

Another great Joy of Tech comic ….

Why is it 'Earth'?

More here.

Of course living in Australia I can relate – the shame!

Shape-Shifting Frog Discovered

March 29, 2015

Scientists have discovered a frog that changes its skin texture to match its surroundings.

Shape-Shifting Frog

The mutable rain frog can go from smooth (left) to spiny in minutes.

Pristimantis mutabilis, described in the Zoological Journal of the Linnean Society, is believed to be the first amphibian known to have this shape-shifting capability.

The scientists believe the ability to change skin texture to reflect its surroundings may enable Pristimantis mutabilis to help camouflage itself from birds and other predators. Learn more here, here or here.

A Lonely Cloud Pouring Water

March 29, 2015

When water in the atmosphere falls back down to Earth it is called precipitation. There are many different types of precipitation including rainfreezing raindrizzlesnowsleethail and even virga. Precipitation plays a major role in the water cycle – which can be grossly simplified as: water evaporates from earth and goes up into the atmosphere, then falls back to earth as precipitation.

Looks pretty cool from above too:

Rain Cloud from Above

This picture was shot by Australian scientist Huw Alexander Ogilvie when he was flying over the Pacific Ocean back in 2005. You can get a high resolution version here.

Jupiter’s moon has more water than all the oceans on Earth

March 13, 2015

The solar system’s largest moon, Ganymede, in orbit around Jupiter, harbors an underground ocean containing more water than all the oceans on Earth.

Ganymede

Scientists were already fairly confident in the ocean’s existence, based on the moon’s smooth icy surface—evidence of past resurfacing by the ocean—and other observations by the Galileo spacecraft, which made a handful of flybys in the 1990s. But new observations by the Hubble Space Telescope remove any remaining doubt. Ganymede now joins Jupiter’s Europa and two moons of Saturn, Titan and Enceladus, as moons with subsurface oceans—and good places to look for life. Learn more here or here.


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