So, Ballpit, what did we learn today?

[A Meat]

Elmer Berger is usually credited with inventing the rearview mirror, though in fact he was the first to patent it (1921) and develop it for incorporation into production street going automobiles by his Berger and Company. He marketed his product as the Cop-Spotter, a means of avoiding being caught speeding by police.[8]

[A Meat]

Runner's knee is a name for a bunch of different things that can go wrong around your kneecap but Jumper's knee is specifically the patellar tendon

[Lumbermouth]

 There is a section in the official Neopets RPG about discussing with your group how much in-game sex they're comfortable with.

[xX_sp00ks_Xx]

The limits and possibilities of experimental music archaeology must always be kept in mind. Not everything that can be played on replicas of ancient Egyptian instruments was performed in exactly the same way in pharaonic times. For example, it is possible to play the riff of “Smoke on the water” (Deep Purple 1971) on my replica of the dancer’s lute whose tuning has survived from pharaonic times. The limits and possibilities of music archaeology thus become clear.

[Recon Rabbit]

In Türkiye, common measures of volume used in recipes are "water glass" (su bardağı, ~200 ml) and "tea glass" (çay bardağı, ~125 ml). This might be why "water glass" comes up sometimes as an unusual measurement. Otherwise, their system is entirely metric.

[xX_sp00ks_Xx]

https://en.wikipedia.org/wiki/Plantago_lanceolata

Children use the plant in a game where the flower's head is shot off the end of stalk; it has been called "rifle", "1 o'clock gun" (after the gun that fires every day from Edinburgh Castle), and other names. To play the game, one would pluck a stalk and wrap a loop of the distal end of the stem around the section of stem closest to the flowerhead. The loop is tightened so it stops up behind the flowerhead and the stem is pulled backward until the flowerhead pops off. The stalk is slightly elastic so when the flowerhead separates it flies off in the direction in which the stalk is pointed like a gun, hence the gun-related names given to it.[27][28]

In the West Country of England, the same game is called 'cannonballs'. Another game played with the plant in Britain and Ireland is a variation of conkers: a child tries to knock off the flowerhead of their friendly rival's stalk using their own stalk with a fast downward thrust. This pastime is known vernacularly as 'dongers' in Kent and 'Carl doddies' (along with the plant itself) in Scotland.[29]

I learned about children's dongers no nevermind backspace that god fucking damn it england

[A Meat]

Gallbladders can get filled with sludge, not just rocks. https://en.wikipedia.org/wiki/Biliary_sludge