Designer Eleanor Lutz is fast becoming one of our very favorite science-visualization artists. Her latest work provides a mesmerizing look at the weird and wonderful ways that animals breathe. (Did you know, for example, that grasshoppers have no lungs?)
Technically, it was Antoine Lavoisier that proved we have an internal combustion engine, but let's give the guinea pig credit. It nearly froze in Lavoisier's special calorimeter to prove something new about biophysics.
To determine how much energy knights in the Middle Ages burnt merely strolling around, British researchers recruited volunteers to dress up in mock-ups of real knightly armor and — in a hilarious twist — gallivant on treadmills. Sure enough, the study found that shielding the entire body was a heavy proposition.…
A simple calculation shows it's likely that you have breathed in the air breathed out by anyone from Marilyn Monroe to Genghis Khan.