Henri Becquerel accidently discovered radioactivity while conducting experiments on phosphorescence. He saw that photographic plates that were still wrapped in their black paper packaging was exposed when placed near uranium salts. Therefore, this suggested a type of radiation that can pass through solid matter. He went on the share a Nobel prize with the Curies.
henri ivented the x-ray
by mixing it with things ;)
Rys emitted by radioactive substances.
Henri Becquerel first discovered radioactivity (by mistake).
what did Philipus Paracelsus invent
Approx. 12 Bq (Bq is the symbol of becquerel, unit of activity).
Henry Becquerel discovered radio-activity.
In 1839.
discovered radioactivity
Henry Ford didn't invent the car.
Henry Becquerel, Pierre Curie, Marie Curie
Marie Curie discovered RADIUM. Sir Henry Becquerel found radioactivity in 1896.
Henry Grady did not invent the iPhone
1234
Steamboats
He invent the Modelt
POKEMON
Henry Ford did not invent the car. He produced cars, starting in 1896 with the Quadricycle, his first automobile.