Recent Examples of hydrogen from the Web
Made hot enough for long enough, hydrogen atoms can fuse together to form helium, like in the center of stars, releasing in the process a tremendous amount of energy.
Waiters, carrying trays of vegetarian spring rolls and mini veggie burgers, wedged their way between guests and a sparkling ocean blue Toyota Mirai — a hydrogen fuel cell car — displayed in the lobby.
Something has to be cooling those hydrogen atoms down.
That vapor can then be broken down into hydrogen and oxygen, two elements required in the production of rocket fuel.
The hydrogen atoms would leave the body in water (such as urine), as would some of the oxygen atoms.
Beginning of the End In its younger days, Cassiopeia A began a process called nucleosynthesis, during which hydrogen and helium began fusing in its core to create heavier elements.
Unlike conventional rockets that burn fuel to create thrust, the atomic system uses the reactor to heat a propellant such as liquid hydrogen, which then expands through a nozzle to power the craft.
Terrorists had driven a van packed with 1,500 pounds of urea nitrate and hydrogen-gas cylinders into a public parking garage beneath the World Trade Center before detonating the bomb, killing six people and injuring over a thousand.
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Origin and Etymology of hydrogen
First Known Use: 1788See Words from the same year
HYDROGEN Defined for English Language Learners
Definition of hydrogen for English Language Learners
: a chemical element that has no color or smell and that is the simplest, lightest, and most common element
HYDROGEN Defined for Kids
History for hydrogen
medical Definition of hydrogen
hydrogenousplay \hī-ˈdräj-ə-nəs\ adjective
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