A unit of measure of dosage of x-rays.
radiation
Roentgen
Roentgen
Roentgen
Wilhelm Conrad Roentgen invented it
Wilhelm Conrad Roentgen on November 8, 1895, discovered the X-Ray.
Roentgen (or Becquerel)Rad (or Grey)Rem (or Sievart)Depending on what you want to measure
Negative of the radio are the radiation effects that affect of radiation Two ways in which radiation can hurt people are radiation poisoning and cancer from radiation. Radiation poisoning occurs when a person is exposed to large amounts of radiation. to get an idea of how much 300 rem is, it might help to know that we are exposed to about 0.2 rem each year just by living our normal lives. A person who received 300 rem, A unit for measuring absorbed doses of radiation, equivalent to one roentgen of x-rays or gamma rays,( roentgen -a unit measuring a radiation dose) if untreated, will probably die soon after of radiation poisoning.
X-rays were discovered by German physicist Wilhelm Conrad Röntgen (27 March 1845 - 10 February 1923) on 8 November 1895, when he produced and detectedelectromagnetic radiation in a wavelength range.
rem is an acronym for roentgen equivalent man, the unit used to measure the amount of radiation that results in the same amount of human tissue damage as that caused by one roentgen of X-rays.
The details depend on what type of radiation you are thinking about. Some units that apply to lots of types of radiation include:* Power * Intensity, which is power per unit area * Frequency and wavelength - many types of radiation come in waves.
David Roentgen was born in 1743.