The longest echo in a man-made space lasts 112 seconds in a giant oil storage tank in Scotland.

The electric motor converts electrical energy into motion.

Bubble wrap was originally invented as textured wallpaper before finding its packaging purpose.

Bluetooth is named after Harald Bluetooth, a 10th-century Danish king — the logo combines his initials in runic letters.

Origami, the Japanese art of paper folding, has influenced engineering designs for solar panels and medical devices.

The first artificial heart was implanted in the 1980s.

Nuclear reactors generate electricity by using the heat from controlled fission chain reactions to boil water and spin turbines.

The Itaipu Dam is one of the largest hydroelectric projects in operation.

The average person spends about 2 weeks of their life waiting at red lights.