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The Hindenburg disaster is an example of a large hydrogen explosion. Hydrogen safety covers the safe production, handling and use of hydrogen, particularly hydrogen gas fuel and liquid hydrogen. Hydrogen possesses the NFPA 704's highest rating of four on the flammability scale because it is flammable when mixed even in small amounts with ...
Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H 2, sometimes called dihydrogen, [11] hydrogen gas, molecular hydrogen, or simply hydrogen. It is colorless, odorless, [12] non-toxic, and highly combustible.
Hydrogen compressors are closely related to hydrogen pumps and gas compressors: both increase the pressure on a fluid and both can transport the fluid through a pipe.As gases are compressible, the compressor also reduces the volume of hydrogen gas, whereas the main result of a pump raising the pressure of a liquid is to allow the liquid hydrogen to be transported elsewhere.
Liquid hydrogen requires such low temperatures that leaks may solidify other air components such as nitrogen and oxygen. Solid oxygen can mix with liquid hydrogen, forming a mixture that could self-ignite. A jet fire can also ignite. [4] At high concentrations, hydrogen gas is an asphyxiant, but is not otherwise toxic. [5]
John Chrysostom, a prominent Church Father of Christianity revered in the Orthodox, Nestorian, Catholic, Lutheran and Anglican traditions, taught that people should wash their hands before picking up a copy of the Bible (he enjoined women to wear a headcovering if they were not already veiled at home prior to touching the Bible).
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Genesis 5:24 says "Enoch walked with God; then he was no more, for God took him," but it does not state whether he was alive or dead nor where God took him. The Books of Kings describes the prophet Elijah being taken towards the heavens ( Hebrew : שָׁמַיִם , romanized : šāmayim ) in a whirlwind, but the word can mean either heaven ...
Photosynthetic cells use the sun's energy to split off water's hydrogen from oxygen. [107] In the presence of sunlight, hydrogen is combined with CO 2 (absorbed from air or water) to form glucose and release oxygen. [108] All living cells use such fuels and oxidize the hydrogen and carbon to capture the sun's energy and reform water and CO