Incredible photos and videos of city streets on fire and fuming with smoke have been going around on Twitter as the months-long street protests for pro-EU reforms in Ukraine take a toll in the heart of the country's capital, Kiev.

This modified dot matrix printer can play "Eye of the Tiger." Now if it can learn how to run up stairs it will be really impressive.

Graphic designer Clif Dickens' Tumblr project features a series of company logos with parody slogans that actually make more sense than the originals.

This pizza delivery driver successfully tosses a pizza up to an open window just like a boss.

The Bernoulli effect, as explained by Cerulean Lunacy from the science side of Tumblr.