A shim

I know I haven't posted anything here lately. So for those of you who read this religiously (I am the only one), here is a list of random facts, some of it decent trivia.

Dairy cows can produce 125 pounds of saliva a day.
"Barf" means "snow" in the Persian language.
Ninety-eight percent of all animal species don't have a backbone.
The heat of peppers is rated on the Scoville scale.
Native Americans once used woodpecker scalps as currency.
There are about a billion bicycles in the world, twice as many as automobiles.
During the course of a year, the average person walks four miles to make their bed.
It took 20,000 men 22 years to build the Taj Mahal.
The Pittsburgh Steelers were originally called the Pirates.
The circumference of the Earth at the equator measures 24,902 miles.
Fred Astaire's favorite dance partner was Gene Kelly.
Twinkies are 68 percent air.
"Siderodromophilia" is sexual arousal derived from riding in trains.
Budweiser beer is named after a town in Czechoslovakia.
Popeye was 5'6" tall.
Cleopatra married two of her brothers.
The Chunnel, the tunnel between England and France, is 31 miles long, 23 of which are under water.
Arguments in the home most often happen in the kitchen.
A shim is a device that is used to fill in space.