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James Chadwick, English physicist (1891-1974)

Dennis Gabor, Hunagrian-British electrical engineer and physicist (1900-1979)

20th century inventions that rely on quantum mechanics

Buffet table

Perfume bottles

Louis de Broglie (1892–1987), French physicist

Cathode rays travel in straight line

Explosion of an atomic bomb

The atomic bomb releases a very large amount of rest energy

Moon

Space probe

Max Planck (1858-1947), physicist

Boiling water

Water boils at 100 °C at Earth's standard atmospheric pressure.

The Earth's atmosphere

Farther away from the Earth's surface the atmosphere gets thinner.

Iron sulfide

Iron sulphide does not retain the properties of iron and sulphur.

Reaction of iron powder and sulfur

Iron powder reacts intensely with sulfur while being heated.

The mixture of iron and sulfur powder is magnetisable

Iron powder (top), sulfur powder (bottom), and their mixture (right)

Sublimation of iodine

Drying clothes

Water vapour condenses on a cold surface

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