Are you ready for some football? Sure, it's only April (and maybe you've still got snow on your lawn) but real live NFL games are just around the corner. The league released the 2015 preseason schedule on Thursday, so we now can officially begin the countdown until the first game on Aug. 9. That's when the Minnesota Vikings and Pittsburgh Steelers will face off in the annual Hall of Fame game in Canton, Ohio. The rest of the teams kick off their preseason slates a few days later on Aug. 13. Even if exhibition football isn't your cup of tea, it's still a good sign because it means that regular season games aren't too far away and we can start dreaming about how our favorite team is going to win the Super Bowl.
Teeth and Bones â A History of X-Rays An x-ray is a form of electromagnetic radiation and can produce an image of somethings internal composition, especially parts of the body. Today, x-rays are often used in hospitals and other medical facilities in helping to diagnose broken bones and other issues. X-rays were initially discovered in the late 1800s by a German physicist. This discovery led to many advances in the field of radiology, especially in regards to medical use of x-rays. In 1895, Wilhelm Rontgen, a German physicist, was the first person to discover and systematically study x-rays.
History of Radiography. X-rays were discovered in 1895 by Wilhelm Conrad Roentgen (1845-1923) who was a Professor at Wuerzburg University in Germany.Working with a cathode-ray tube in his laboratory, Roentgen observed a fluorescent glow of crystals on a table near his tube.hortly after the discovery of X-rays, another form of penetrating rays was discovered. In 1896, French scientist Henri Becquerel discovered natural radioactivity. Many scientists of the period were working with cathode rays, and other scientists were gathering evidence on the theory that the atom could be subdivided.