Tritium lighting is made using glass tubes with a phosphor layer in them and tritium (a hydrogen isotope) gas inside the tube. Such a tube is known as a "gaseous tritium light source" (GTLS). Because tritium in particular is an integral part of thermonuclear devices (though in quantities several thousand times larger than that in a keychain), devices containing tritium are considered dual-use technology in the U.S.A., and are therefore illegal for export. However, they are widely available in the U.K., most of Europe (some countries like Belgium have outlawed them however), Asia and Australia. Tritium devices can be purchased in the UK and Australia, but are illegal for import to the United States, however they are available in the US as gunsights and for military applications. UK Source
http://www.crazyaboutgadgets.com/detail.asp?ID=371 AU Source
http://www.kitbag.com.au/prod849.htm USA Source (Military Personnel only)
http://www.ameriglo.net/tactical_dev.htm You can also find tritium lighting in the US without having to be military personnel at http://www.unitednuclear.com. They have a limited stock, though.
The half-life of tritium is about 12.3 years, meaning it takes that much time for half of the tritium to decay. However, tritium can persist in the environment for a longer time due to its constant formation in the upper atmosphere and mixing in with water sources.
Tritium. What did you think it was?
Tritium is an isotope of hydrogen, so it is colorless.
Tritium is not illegal in the US, but as with other radioisotopes it is regulated. It has many legal uses:radiochemical tracertiny amounts are used in neon lamps and signs to help them start faster and more reliablysealed ampules are used to make a phosphor glow to light watch and instrument dials ("safer" replacement for radium)electric activated neutron sources (used in petroleum and other industries)etc.
The difference between natural and artificial sources of light is that natural sources are produced by the sun while artificial light sources illuminate using energy from other sources and include incandescent bulbs.
The half-life of tritium is about 12.3 years, meaning it takes that much time for half of the tritium to decay. However, tritium can persist in the environment for a longer time due to its constant formation in the upper atmosphere and mixing in with water sources.
I means it has been taken or acquired from something else. E.g. the money was acquired from external sources, could be a bank.
Tritium. What did you think it was?
Isotopes of uranium, thorium, radium, radon, potassium, tritium, etc.
The sources that can give out their own light are "Light Sources" and the same opposite the sources which can not give out their own light are know as Non Light Sources .
As an outcome of nuclear fusion of sun light elements ofDeuteriumand tritium
The two main sources of light energy are natural light from the sun and artificial light from sources like light bulbs and lamps. Both sources produce electromagnetic radiation that our eyes perceive as light.
Tritium is an isotope of hydrogen, so it is colorless.
Man-made light sources... lamp, torch, LCD etc.
The oxide of tritium is called tritium oxide or sometimes referred to as tritiated water. It is a radioactive form of water where one or more of the hydrogen atoms in water has been replaced by tritium, a radioactive isotope of hydrogen.
We are not sources of light so we do not give off light.Light is given off by sources such as the Sun and Stars.Things that are not light sources reflect light into our eyes so we can see them.
Tritium is not illegal in the US, but as with other radioisotopes it is regulated. It has many legal uses:radiochemical tracertiny amounts are used in neon lamps and signs to help them start faster and more reliablysealed ampules are used to make a phosphor glow to light watch and instrument dials ("safer" replacement for radium)electric activated neutron sources (used in petroleum and other industries)etc.