Helium

The Hindenburg disaster (1937)The Hindenburg disaster (1937)

Helium

Although hydrogen-filled balloons, such as the exploded Hindenburg (1937), had rigid structures, the flammability of hydrogen always posed a safety hazard. In 1905, two chemists discovered helium in a Kansas gas well, and this rare element was suddenly plentiful. During World War I., chemical technology extracted, stored, and shipped large quantities of helium, and helium-filled blimps in World War II. safely escorted troop and supply ships around submarines. In the 1950s, helium was useful as welding atmosphere during rocket construction and as the force needed to push the rocket's fuel to the engines.

Toy-balloons also contain helium, so they easily lift up in the airToy-balloons also contain helium, so they easily lift up in the air

Did you know?

After hydrogen, helium is the second most abundant in the observable universe. Its conductivity in the gas phase is greater than any other gas. The Sun is a giant fusion engine whose primary work is fusing hydrogen into helium. The high-energy photons are released in the fusion reactions.

Chemical reactions produced in the Sun

  1. Fusion reaction
  2. Electron
  3. Proton
  4. Neutron
  5. Positron
  6. Neutrino
  7. Gamma-ray
  8. Deuterium
  9. Helium-3
  10. Helium-4
  11. Hydrogen