The first real airport was built in the Croydon near London in 1928.
Chickens in China annually lay about 160 billion eggs. If we made an omelet out of them, every inhabitant of the Earth would get a piece of omelet with a diameter of one meter.
In 1898 Nikola Tesla successfully demonstrated a “ship with a remote control” as a continuation of the research on radio frequency.
The first computer was made in 1946 at the University of Pennsylvania. ENIAC (Electronic Numerical Integrator And Calculator) had 18,000 electronic pipes, 30 tons and it needed 154 m2 of space.
Heroin was once used as a cough medicine.
Every second the Earth is struck about hundred times by lightning, while four times more lightnings flash in the sky. Lightning can be anywhere from 60 meters to 30 kilometers long.