today i found out

Why Screws Tighten Clockwise

One of the six simple machines, a screw is nothing more than an inclined plane wrapped around a center pole. While today screws come in standard sizes, and typically are tightened by turning clockwise (and loosened by turning counterclockwise), this is a recent invention. A great example of how things…

How Hot Dogs Are Made And What’s Actually Inside

After the steaks, chops, breasts, ribs, thighs, hams, tenderloins and briskets are removed, there’s a fair amount of gristle, fat and offal remaining on a butchered animal, and early on, people realised this could be put to good use. One of these products is the hot dog, a classic of…