All of the ‘Colourful Chemistry’ graphics so far are now available on the site as one download: http://goo.gl/4qUpfm
Stopping Sound with Foam. Experiments with this foam (shown under a microscope) showed that at certain frequencies, the bubbles and the surrounding liquid vibrate out of synch in response to an ultrasound wave, completely suppressing the transmission of sound. (Via APS physics).
Some common Maclaurin Series expansions. Infinite series are extremely useful in the world of math. Sometimes even making the impossible, possible.
Beautiful aerial shots from Zack Seckler
Inky paw prints presumably left by a curious kitty on a 15th century manuscript.
From National Geographic.
The ocean at different places at the same beach on the same day. It’s crazy how different it looks!