Why does the Pentagon have so many bathrooms?

Why does the Pentagon have so many bathrooms?

The Pentagon, in Arlington, Virginia, has twice as many bathrooms as is necessary, because when it was built in the 1940s, the state of Virginia still had segregation laws requiring separate toilet facilities for blacks and whites.

Are tarantulas harmless to humans?

Despite the goliath birdeater’s appearance, the size of its fangs and its reputation, this spider is entirely harmless and passive toward humans — as are the vast majority of tarantulas around the world. The spiders do have venom, but their bite would hardly compare to the sting of a wasp.

Who invented the first vending machine?

The first modern coin-operated vending machines were introduced in London in the United Kingdom in the early 1880s, dispensing post cards. The machine was invented by Percival Everitt in 1883 and soon became a widespread feature at railway stations and post offices, dispensing envelopes, postcards and notepaper.

Who invented the first vending machine?

The first modern coin-operated vending machines were introduced in London in the United Kingdom in the early 1880s, dispensing post cards. The machine was invented by Percival Everitt in 1883 and soon became a widespread feature at railway stations and post offices, dispensing envelopes, postcards and notepaper.

What does the A stand for in am radio?

Note on the left that when the carrier wave of FM radio is modulated with sound that the distance between the waves, or the frequency of the carrier wave, changes. Thus, AM radio works by changing the amplitude of the carrier wave and FM radio works by changing the frequency of the carrier wave. Frequency Response.

What igneous rock can float on water?

Pumice is composed of highly microvesicular glass pyroclastic with very thin, translucent bubble walls of extrusive igneous rock.

Do penguins have tongues?

Penguins have very specialised tongues that are rarely seen since they don’t extend out of the beak. Penguins tongues are covered with lots of little spiky spines that all point backward into the throat so that when a penguin catches a fish it is gripped by the spines and cannot escape.

Where do they make footballs?

Since 1955, the official NFL footballs have been made at the Wilson factory in Ada, Ohio. Each football is handmade from cowhide sourced from Kansas, Nebraska, and Iowa.