Another great Joy of Tech comic ….
Scientists have discovered a frog that changes its skin texture to match its surroundings.
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.
When water in the atmosphere falls back down to Earth it is called precipitation. There are many different types of precipitation including rain, freezing rain, drizzle, snow, sleet, hail 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:
The solar system’s largest moon, Ganymede, in orbit around Jupiter, harbors an underground ocean containing more water than all the oceans on Earth.
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.
In the tradition of ‘Killer Whale vs Seal‘, ‘Lion vs Buffalo vs Crocodile‘, ‘Shark vs Octopus‘, ’Leopard vs Porcupine‘, ‘Hornets vs Honey bees‘, ’Salmon vs Grizzly Bear‘, ‘Hippopotamus vs Crocodile’, ‘Polar Bear vs Walrus Colony’, ‘Giraffe vs Giraffe‘, ‘Caterpillar vs Frog‘, ‘Frog vs Poison Newt’, ‘Rubber bands vs Water Melon’, ‘Sarcastic fringehead vs Sarcastic fringehead’, ‘Jaguar vs Crocodile‘, ‘Snake vs Crocodile‘, and ‘Centipede vs Snake‘ here is ‘Moray Eel vs White Tip Reef Shark':
Check out a match pyramid made of 5000 matches. Watch the chain reaction intensify as a wave of fire spreads over the pyramid. It took over 10 hours to build and 10 seconds to destroy!
What happens when you drop a perfectly balanced stack of balls? And how is the result like a supernova?
Watch to find out …
We’ll go to the doctor when we feel flu-ish or a nagging pain. So why don’t we see a health professional when we feel emotional pain: guilt, loss, loneliness? Too many of us deal with common psychological-health issues on our own, says Guy Winch. But we don’t have to. He makes a compelling case to practice emotional hygiene — taking care of our emotions, our minds, with the same diligence we take care of our bodies.
If you must preserve messages for people in the far future to read, Blu-ray discs and USB sticks are no good. For real long-term storage, you want a DNA time capsule.
Just 1 gram of DNA is theoretically capable of holding 455 exabytes – enough for all the data held by Google, Facebook and every other major tech company, with room to spare. It’s also incredibly durable: DNA has been extracted and sequenced from 700,000-year-old horse bones. But conditions have to be right for it to last.
Research suggests that data in DNA form could last 2000 years if kept at a temperature of around 10 °C. The Global Seed Vault in the Arctic could preserve it for over 2 million years at a chilly -18 °C, offering truly long-term storage. Learn more here.