'gas'In British and American English, the air-like substance that burns easily and that is used for cooking and heating is called gas.
In American English, the liquid that is used as fuel for vehicles is also called gas, or - the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any containerstate of matter, state - (chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids (fixed volume and shaped by the container) and gases (filling the container); "the solid state of water is called ice"atomic number 17, chlorine, Cl - a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)atomic number 9, fluorine, F - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatiteatomic number 1, H, hydrogen - a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universeatomic number 7, N, nitrogen - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissuesatomic number 8, O, oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crustair - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"ozone - a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)attack, assail - launch an attack or assault on; begin hostilities or start warfare with; "Hitler attacked Poland on September 1, 1939 and started World War II"; "Serbian forces assailed Bosnian towns all week"Types of gas acetylene, afterdamp, ammonia, argon, arsine, biogas, butadiene, butane, butene, Calor gas (trademark), carbon dioxide or carbonic-acid gas, carbon monoxide, chlorine, coal gas, compressed natural gas (CNG), cyanogen, diazomethane, diborane, dichlorodifluoromethane, electrolytic gas, ethane, ethylene, flue gas, fluorine, formaldehyde, helium, hydrogen, hydrogen bromide, hydrogen chloride, hydrogen fluoride, hydrogen iodide, hydrogen sulphide, ketene, krypton, laughing gas or nitrous oxide (LNG), liquefied petroleum gas (LPG), marsh gas, methane, methylamine, methyl bromide, methyl chloride, natural gas, neon, nitric oxide, nitrogen, nitrogen dioxide, nitrous oxide, oilgas, oxygen, ozone, phosgene, phosphine, producer gas or air gas, propane, radon, sewage gas, stibine, synthetic natural gas (SNG), sulphur dioxide, synthesis gas, tail gas, tetrafluoroethene, tetrafluoroethylene, town gas, vinyl chloride, water gas, xenon If she had seen his face when, safe in his own room, he looked at the picture of a severe and rigid young lady, with a good deal of hair, who appeared to be gazing darkly into futurity, it might have thrown some light upon the subject, especially when he turned off the Shortly afterwards, a man in a blue cotton frock, much soiled, came in and bought a pipe, filling the whole shop, meanwhile, with the hot odor of strong drink, not only exhaled in the torrid atmosphere of his breath, but oozing out of his entire system, like an inflammable I should have been chary of discussing my guardian too freely even with her; but I should have gone on with the subject so far as to describe the dinner in Gerrard-street, if we had not then come into a sudden glare of to be so much improved and adapted to domestic use, as to supersede all other modes of producing domestic light; we can already suppose, some centuries afterwards, the heads of a whole Society of Antiquaries half turned by the discovery of a pair of patent snuffers, and by the learned theories which would be brought forward to account for the form and purpose of so singular an implement.
Depleted uranium is used as shelding to protect tanks, and also in bullets and missiles.
The first atomic bomb used in warfare was an uranium bomb.
Radiocarbon dating has transformed our understanding of the past 50,000 years.
Radioactive decay can be used as a “clock” because it is unaffected by physical (e.g. For instance, the amount varies according to how many cosmic rays reach Earth.
This is affected by solar activity and the earth’s magnetic field.
This bomb contained enough of the uramium-235 isotope to start a runaway chain reaction which in a fraction of a second caused a large number of the uranium atoms to undergo fission, there by releasing a fireball of energy.
The main use of uranium in the civilian sector is to fuel commercial nuclear power plants.
The state of matter distinguished from the solid and liquid states by relatively low density and viscosity, relatively great expansion and contraction with changes in pressure and temperature, the ability to diffuse readily, and the spontaneous tendency to become distributed uniformly throughout any container.1.
(General Physics) a substance in a physical state in which it does not resist change of shape and will expand indefinitely to fill any container.
The total mass of the isotope is indicated by the numerical superscript.
While the lighter isotopes C has decayed that what remains can no longer be measured. In 5,730 years half of the C in the atmosphere, and therefore in plants and animals, has not always been constant.
Professor Willard Libby produced the first radiocarbon dates in 1949 and was later awarded the Nobel Prize for his efforts.
Radiocarbon dating works by comparing the three different isotopes of carbon.