however hulu plus does give you the option of customizing what kind of ads you see both amazon and netflix though are gloriously ad free although amazon prime does show short promos before each video for other series available on the service
In 1962, James Watson, Francis Crick and Maurice Wilkins got the Nobel Prize for the discovery of the shape of DNA. Photo 51 was an X-ray diffraction image that gave them some crucial pieces of information. It was only after seeing this photo that Watson and Crick realized that DNA must have a double helical structure. The problem was that Photo 51 was actually made by Rosalind Franklin.
The first X-ray device was discovered accidentally by the German scientist Wilhelm Roentgen (1845-1923) in 1895. He found that a cathode-ray tube emitted invisible rays that could penetrate paper and wood.The rays caused a screen of fluorescent material several yards away to glow.homas Alva Edison invented an X-ray fluoroscope in 1896. American physiologist Walter Cannon used Edison's device to observe the movement of barium sulfate through the digestive system of animals and, eventually, humans.