Amazon started as an online bookstore in Jeff Bezos's garage in 1994.

The development of laparoscopic surgery reduced recovery time.

The concept of a touchscreen dates to 1965; the first commercially successful touchscreen phone was the iPhone in 2007.

The first emoji was created in 1999 by Japanese designer Shigetaka Kurita for a mobile internet platform.

There are classified inventions that have never been revealed publicly.

GPS exists because of Einstein’s theory of relativity correcting time differences.

Hydraulic systems use incompressible fluid to transfer force — they power everything from car brakes to excavators.

The average Google search uses about 0.3 watt-hours of electricity.

Steel was a rare luxury material in the ancient world — mass production became possible only in the 19th century.