July 1, 2016
Have you ever seen the aurora borealis or the aurora australis? They’re wonders to behold, but auroras are not limited to Earth. Jupiter has them, too. NASA and the European Space Agency has recently been training the far-seeing Hubble Space Telescope on nearby Jupiter. It reveals ultraviolet auroras larger than the Earth itself.
Jupiter’s glorious auroras—caused by the gas giant’s enormous magnetic field reeling in charged particles from the solar wind—were first discovered by the Voyager spacecraft in 1979. The lights appear at their brightest when viewed through an ultraviolet filter.
Learn more here, here or here.
June 30, 2016
Polyethylene glycol or polyethylene oxide is a polymer. This means it is a chemical compound that is made of small molecules that are arranged in a simple repeating structure to form a larger molecule.
Because the polyethylene glycol molecules are so long it can do a crazy thing … pour itself:
June 11, 2016
Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays, our lifestyles make us sit much more than we move around. Are our bodies built for such a sedentary existence? Murat Dalkilinç investigates the hidden risks of sitting down.
June 10, 2016
Time to throw out that old copy of the periodic table: New names have just been penciled in for four elements officially recognized back in December. Nihonium, moscovium, tennessine, and oganesson will grace the blocks assigned to atomic numbers 113, 115, 117, and 118, said the International Union of Pure and Applied Chemistry (IUPAC).
Learn more here.
May 13, 2016
Sodium reacts strongly with water, according to the following chemical reaction:
2Na(s) + 2H2O → 2NaOH(aq) + H2(g)
A colourless solution is formed, consisting of strongly alkalic sodium hydroxide (caustic soda) and hydrogen gas. This is an exothermic reaction. Sodium metal is heated and may ignite and burn with a characteristic orange flame. Hydrogen gas released during the burning process reacts strongly with oxygen in the air.
Don’t try this at home …
May 11, 2016
Is Jupiter ultimately responsible for preserving life on Earth?
May 1, 2016
So this is what you can see if you happen to be about 3,700 meters below sea level …
A – MAZ – ING !!!
April 25, 2016
For four billion years, what lived and died on Earth depended on two principles: natural selection and random mutation. Then humans came along and changed everything — hybridizing plants, breeding animals, altering the environment and even purposefully evolving ourselves.
April 13, 2016
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‘, ‘Centipede vs Snake‘, ‘Moray Eel vs White Tip Reef Shark‘ and ‘Rabbit vs Snake‘ here is ‘Octopus vs Octopus’:
I can’t even tell who won !!?!
March 16, 2016
When we hear the word radiation, it’s tempting to picture huge explosions and frightening mutations. But that’s not the full story — radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much should we worry about its effects?