#38 Why was the Berlin Wall first built?
I learned this today. The construction of the Berlin Wall began on the night of Sunday 13th August. A day that is called Barbed Wire Sunday. At the end of…
I learned this today. The construction of the Berlin Wall began on the night of Sunday 13th August. A day that is called Barbed Wire Sunday. At the end of…
I learned this today. Standardized time and time zones weren’t needed until rail travel became popular in the 1850s. Having international time zones seems common sense to us these days.…
I learned this today. The most common kidney stones are caused when there are more minerals in the blood than the kidneys can reabsorb. Most people have two kidneys. The…
I learned this today. Fireworks that are shot into the sky are made up of a stabilizer, a fuse, a charge, and an effect section. Fireworks that are launched into…
I learned this today. Ships float because the density of the total volume of the ship is less than the density of the same volume of water it displaces. An…
I learned this today. The Kardashev scale describes five different levels of technological civilization, and we, as a species, haven’t even reached level 1. The Kardashev scale was, unsurprisingly enough,…
I learned this today. Scars are left after a wound because the body is trying to put a protective covering over the wound as fast as it can. When you…
I learned this today. Neanderthals were named after the place where they were found. The Neander Valley in modern Germany. “Thal” means valley in German. The earliest Neanderthal bones found…
I learned this today. Venus flytraps know when to close on an insect because of tiny hairs inside them. Venus flytraps are carnivorous plants that grow in the subtropical wetlands…
I learned this today. Floor indicators were added to elevators in the 1950s in order to distract people while they waited. The actual waiting time wasn’t as bad as the…