Recent Examples of hydrogen from the Web
One key test of matter-antimatter symmetry is to compare the frequencies of light absorbed by hydrogen and antihydrogen atoms.
Options for vessel operators may include using clean-burning fuels like methanol, hydrogen and ammonia, as well as implementing electric propulsion, hull design improvements and slower sailing speeds.
Carbon, oxygen and hydrogen are also important nutrients and come to plants via air and water.
Humans would then drink the water or break it down into hydrogen and oxygen, which could then be used to make breathable air and methane for rocket fuel.
As hydrocarbon gases sink toward their cores, increasing pressure squeezes out the hydrogen atoms and presses the remaining carbon into diamond, which travels through the planet’s heart as very pricey precipitation.
Ten days later, also from Paris, the world’s first hydrogen balloon took its first people up, up, and away.
The sun currently fuses hydrogen into helium in its interior, a process that began 4.6 billion years ago and will continue for another 3 billion years.
At those pressures, a layer of metallic hydrogen exists, the swirling actions of which generate Jupiter’s magnetic field.
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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
Seen and Heard
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