Randall Munroe and Henry Reich explained why a nuclear submarine would not work as a spaceship despite its sturdy airtight, watertight hull.

Travel vlogger The Tim Traveler toured the streets of Paris, noting the Meridian Line that passes through the Paris Observatory.

A very playful cat named Ben, sat on a golf course green in Switzerland and adorably prevented every putt from going into the hole.

A devoted dog named Echo alerted his human that he detected an oncoming epileptic seizure and helped his human get safely through it.

Dustin Ballard of There I Ruined It showed how he creates his hilarious song mashups and parodies with the use of AI technology.

Practical Engineering looked at the Leaning Tower of Pisa and how persistent engineers in the 1990s kept the 12-Century structure standing.

Laszlo Buring performed The Doors' haunting narrative "Riders on the Storm" in the distinctive style of Dire Straits at a much quicker tempo

During 2003 airings of Star Wars movies in Chile, viewers were subjected to beer ads that were embedded into scenes of the films.

The engineer behind Brick Technology used his two cats, Cookie and Muffin, to accurately measure out a feline-carrying LEGO train.

The Paint Explainer debunked a fairly comprehensive list of common misconceptions over the course of nine pictorial minutes.