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2. Elephant's toothpaste - Wikipedia

   en.wikipedia.org/wiki/Elephant's_toothpaste

   Elephant toothpaste reaction Two people watching the reaction of Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1]

3. Bubble chamber - Wikipedia

   en.wikipedia.org/wiki/Bubble_chamber

   Fermilab's disused 15-foot (4.57 m) bubble chamber The first tracks observed in John Wood's 1.5-inch (3.8 cm) liquid hydrogen bubble chamber, in 1954.. A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it.

4. 81 cm Saclay Bubble Chamber - Wikipedia

   en.wikipedia.org/wiki/81_cm_Saclay_Bubble_Chamber

   The 81 cm Saclay Bubble Chamber was a liquid hydrogen bubble chamber built at Saclay, in collaboration with the École Polytechnique (Orsay), to study particle physics. [1] The team led by Bernard Gregory completed the construction of the chamber in 1960 and later it was moved to CERN and installed at the Proton Synchrotron (PS). [2] [3]

5. Timeline of hydrogen technologies - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_hydrogen...

   1625 – First description of hydrogen by Johann Baptista van Helmont. First to use the word "gas". 1650 – Turquet de Mayerne obtains a gas or "inflammable air" by the action of dilute sulphuric acid on iron. 1662 – Boyle's law (gas law relating pressure and volume). 1670 – Robert Boyle produces hydrogen by reacting metals with acid.

6. Miller–Urey experiment - Wikipedia

   en.wikipedia.org/wiki/Miller–Urey_experiment

   The experiment used methane (CH 4), ammonia (NH 3), hydrogen (H 2), in ratio 2:2:1, and water (H 2 O). Applying an electric arc (simulating lightning) resulted in the production of amino acids. It is regarded as a groundbreaking experiment, and the classic experiment investigating the origin of life (abiogenesis).

7. Light-gas gun - Wikipedia

   en.wikipedia.org/wiki/Light-gas_gun

   Using hydrogen gas and powered by a shotgun shell, it achieves a velocity of 7 km/s. Used during the development of the Fermi Gamma-ray Space Telescope shield. The light-gas gun is an apparatus for physics experiments. It is a highly specialized gun designed to generate extremely high velocities.