Fire alarm, now you know just how far you can pull it without getting arrested.
How "science" wants us to believe big bird works
How your typical Schrader valve works
This one isn't something working, it just looks cool, kinda like Daquan
How plants grow up the side of your house/fence and give you a butt-ton of yard work to do
How a key opens a lock. Note, does not apply to opening locked hearts.
Proving the Pythagorean Theorem (a^2+b^2=c^2). The squares with liquid represent squaring one of the sides.
How guns reload, duh.
That's all for now, thanks for reading! Thumb if you want more