While small doses of caffeine (such as drinking a single cup of coffee) can increase alertness and have other positive effects, doses in excess of 200mg (such as drinking multiple cups of coffee at a time or taking caffeine pills) can cause increased anxiety along with nervousness, jitteriness, and an upset stomach.

NASA’s Vehicle Assembly Building is so enormous that it requires at least 10,000 tons of air conditioning equipment and 125 rooftop ventilators to keep clouds from forming inside the building.