The photo electric effect was explained by Einstein in 1905 when he theorized that light could transfer its energy like a particle and knock electrons out of metals. But the actual effect had been observed by a number of scientists since 1887, they just couldn't come up with a satisfactory theory that explained everything they observed. I believe he got the Nobel Prize for his photo electric effect theory, although he is more famous for his Relativity theories.
He Began He Reasearch In 1803 But Did Not Find His Answer Untill 1832 .
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In 1758 Benjamin Franklin and professor John Hadley discover that evaporation of alcohol and other volatile liquids, which evaporate faster than water, can cool down an object enough to freeze water. This eventually led to what we call air conditioning.
There was no exact date. 5th of July 1687 was the sharpest date, which was the date of publishing of the "Principia". If you type into Google Principa Mathematica this is the calculus that he formulated to solve the mystery of gravity. I know it was in the 1600's but cannot remember the exact date. Olly
(1850)
1921 for his work on the photo electric effect
1879 - birth 1905 - published four volumes of books related to photo electric effect & special relativity 1921 - Nobel prize 1955 - death
it changes the style the music was into something new and more up 2 date
1894
If an application form, the photo does not indicate the name and date of photo taken will it be accepted
august 26 2009
2012
Which date? Not "what date"!
i think 1956 but not sure
Well they could date but there wasn't a y photo of them kissing or hugging but yea they could date
In the year 1002 or 1003.
on may 13 1846