The thinnest skin is found on your eyelids. It's a mere 0.05 mm (two thousandth of an inch) thick there. The thickest skin? That's found on the sole of your foot. It's 4 mm (about 5/32th of...

This is the Scheintod gas pistol. It was manufactured in Germany after the First World War. According to some of my sources, this odd derringer fired 12 mm cartridges which contained powdered tobacco--that is, snuff. Thi...

It looks like a rack of homemade candles, but the image above is actually of honey produced by bees in France. The weird coloration started showing up in August, and beekeepers were stumped. A bit of detective work revea...

In the 1780s, Johann Helfrich Müller, a German engineer, was tasked with checking tables of data on the volumes of trees. To make the work go faster, he designed this machine:Müller's calculating machine is ver...

ISO 3103 is the standardized method for brewing tea. Do you think you know how to brew a cup of tea? Here's how you should brew one, according to the International Organization for St...

Enemies can be anywhere, so during the 1970s, the Soviet Union developed guns that could fire underwater. This selective fire rifle, the APS (Avtomat Podvodnyj Spetsialnyj), was among them. It could fire 5.66 mm darts fr...

The cake is only topped with M&Ms; it's not M&Ms all the way down. There's a vanilla cake buried under all of that chocolate candy. But that's as it should be, lest its eaters suffer death by chocolate. Natasha o...

Photo: White Sands Missile Range/Applied Physics Laboratory - via Smithsonian's Air & Space The grainy black and white photo above was the very first photo from space. It was taken from an...

(Image credit: Flickr user Patrick Emerson) by Mark Fonstad 1, William Pugatch 1, and Brandon Vogt 2 1. Department of Geography, Texas State University, San Marcos, Texas 2. Department of Geography, Arizona State Un...

That's probably what Bruschi looked like when he was told that he holds the Guinness World Records for dog with largest eyes (each one measuring 28 mm or 1.1 inches in diameter): Link...