This video is about how efficient various reactions are at converting mass to energy (as we know from the Einstein mass-energy equivalence of E=mc^2). Antimatter is very efficient but it is not naturally-occurring. Chemical reactions like fire or explosions are very inefficient. Nuclear fission and nuclear fusion are better, but not amazing on an absolute […]
Prolonged space travel plays a severe toll on the human body: microgravity impairs muscle and bone growth, and high doses of radiation cause irreversible mutations. As we seriously consider the human species becoming space-faring, a big question stands: even if we do break free from Earth’s orbit, can we adapt to the extreme environments of […]
It starts with a tickle in your throat that becomes a cough. Your muscles begin to ache, you grow irritable, and you lose your appetite. It’s official: you’ve got the flu. It’s logical to assume that this miserable medley of symptoms is the result of the infection coursing through your body — but is that […]
See ferrofluid falling on a magnet filmed at 1000fps. How does the science of falling ferrofluid droplets mimic speghettification while falling into a black hole? Find out in this video from the always amazing Physics Girl. [Physics Girl]
You’ve probably heard that taking vitamin C or zinc will keep you from getting sick, but it turns out that those popular cure-alls don’t actually work. [SciShow]
Raindrops and snowflakes generally start to form around something else in the air, like a speck of dust, but sometimes that something else is bacteria. [SciShow]
Oxytocin is a hormone that plays a big role in maternal bonding and trust, and according to certain studies, also makes dogs more interested in smiling human faces and makes them feel less threatened by angry faces. [Source: Einstein’s mama on Facebook]
A newly created glass polymer can ‘heal itself’ without the need for extreme heat. But suggestions it could be used for phone screens might be a reach. Several polymers already exist with self-healing properties, meaning that with the application of heat they can reform their bonds and thus repair cracks. Aside from the fact that […]
From Warped Perception: I take the Whoosh Jet Bottle to a different level in this viewer request episode by burning Nitromethane, I have never seen Nitromethane burned in a whoosh bottle before ever, so I was very curious to see what will happen and it looked amazing. I figured since I’m working on so many […]
Are microwaves really just a form of light? What exactly is the electromagnetic spectrum? A science-mad A.I. system (voiced by GLaDOS actress Ellen McLain) uses song to explain this to a computer technician (Ed Wasser). With Casey McKinnon & Mike Romo. [Universe Unplugged]