It’s History dives into the fascinating history of entrances to New York City subway system that have been closed and/or forgotten.

Multi-instrumentalist Arnaud Delannoy gave a very short and helpful non-verbal lesson on the basics of playing the musical saw.

Car Jitsu is a unique sport in which jiu-jitsu practitioners grapple inside a car, using whatever is available to make the other tap out.

A green Indian ringneck parrot named Mintee who lives in Maldives loves to give his girlfriend, a white parrot named Amber, lots of kisses.

Uuhai is a truly badass Mongolian heavy metal band that features traditional dress, instruments and the incredible throat singing.

A pair of emus were feeling a bit peckish while at the pet store so they tried to eat the picture of food on the front of a parrot food bag.

Fabricio H. Franzoli programmed his quartet of Tesla Coils to perform a electrifying cover of the classic Michael Jackson song "Billie Jean".

Randall Munroe and Henry Reich of "What If?" responded to a question about the safety of swimming in a spent nuclear fuel storage pool.

David Hilowitz found a çifteli at a thrift store and took it home to learn more about the stringed instrument and its microtonal scale.

Practical Engineering explained how fish ladders work to keep specific species migrating smoothly during large water projects.