Fascinating images from all parts of science!
Although my job is writing about science — putting it into words — there are times when images can say so much more than words. I am not much of a photographer or graphic artist, so most of these images were provided by other people, who are credited in the captions when I can remember who they were.
Heads I Win... 51 Percent of the Time
When humans flip a coin that starts heads up, the odds of getting heads on the next flip are about 51 percent. This amazing fact stems from our inability to execute a perfect flip. As shown here in ultra-high-speed photography provided by Susan Holmes, a coin precesses each time it rotates one time. (Still frames are 1/30 of a second apart.) From What's Happening in the Mathematical Sciences.