Wax Audio created a seamless compilation of 100 YouTube artists covering Led Zeppelin's "Stairway to Heaven" in honor of its 50th Anniversary.

Jack Cutmore-Scott explains the surprisingly long history of electric cars in a Ted-Ed lesson by Gil Tal and Daniel Sperling of UC Davis.

Liam Thompson built a clever elevator that safely takes his beloved 20 year old cat Frodo up and down a very steep set of outdoor stairs.

Backyard Birds of Australia went outside to try and pet the five wild kookaburra birds who were sitting on the table in her yard.

While on "The Tonight Show", Fred Armisen picked up a guitar and played in the style of each decade of punk rock music from 1970 to 2000.

David Scott of The Kiffness amusingly remixed footage of a horse who made music with a rubber chicken to a highly rhythmic techno beat.

While visiting the National Air and Space Museum, Adam Savage examined David Scott's Apollo 15 A7LB and a Russian Krechet moon suit

Malcolm P.L. explains how the idiom "Dead as a Doornail" came to be while demonstrating the carpentry process provided the analogy.

The classic TV series "I Love Lucy" shows the inconsistency of the English language, particularly when it comes to words ending in O-U-G-H.

Bill McClintock mashed together Leo Sayer's disco song "You Make Me Feel Like Dancing" with the menacing sound of Metallica's "Sad but True".