Search results
Results from the WOW.Com Content Network
Radioluminescence is the phenomenon by which light is produced in a material by bombardment with ionizing radiation such as alpha particles, beta particles, or gamma rays. Radioluminescence is used as a low level light source for night illumination of instruments or signage.
Tritium radioluminescence is the use of gaseous tritium, a radioactive isotope of hydrogen, to create visible light. Tritium emits electrons through beta decay and, when they interact with a phosphor material, light is emitted through the process of phosphorescence .
Unprotected experiments in the U.S. in 1896 with an early X-ray tube (Crookes tube), when the dangers of radiation were largely unknown.[1]The history of radiation protection begins at the turn of the 19th and 20th centuries with the realization that ionizing radiation from natural and artificial sources can have harmful effects on living organisms.
Radioluminescent paint is a self-luminous paint that consists of a small amount of a radioactive isotope (radionuclide) mixed with a radioluminescent phosphor chemical. The radioisotope continually decays, emitting radiation particles which strike molecules of the phosphor, exciting them to emit visible light.
The right to a healthy environment is at the core of the international approach to human rights and climate change. [23] [24] The effects of climate change on human rights are presented by OHCHR in a fact sheet with the most frequently asked questions on the subject. [25]
Human Rights Watch is the second major rights group in a month to use the word genocide to describe the actions of Israel in Gaza, after Amnesty International issued a report that concluded Israel ...
In the United States, human rights consists of a series of rights which are legally protected by the Constitution of the United States (particularly by the Bill of Rights), [1] [2] state constitutions, treaty and customary international law, legislation enacted by Congress and state legislatures, and state referendums and citizen's initiatives.
The International Federation for Human Rights (FIDH), one of the oldest human rights organizations, has as its core mandate the promotion of the respect for all rights set out in the Declaration, the International Covenant on Civil and Political Rights, and the International Covenant on Economic, Social and Cultural Rights.