Warrenf09

====**//__under construction__//**!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! **//wilhelm roentgen//** was a german physicist he grew up in amsterdam born in [1849-1923] and went to the university of utrecht. he study mechanics. he was beleived to have made the x-ray machine in 1879 the x-ray mahine was used .he won the nobel prize in phsyics in 1901.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. Roentgen used his device to examine the bone structure of the human hand.the x-rays have many uses we can figure out how bones work and move and if you broke a bone or not.====



the history of the dishwasher.
the dishwasher was probably the most important invention beause instead of people having to scrub plates and glasses a machine can do all of that without you doing the work.josephine cochrane made the first automatic dishwasher. she measured the dishes and ran wires across the bottom then placed the dishes in the wires.she placed the wires with the dishes onto a wheel and put the wheel inside a box over a boiler. whe she closed the box the boiler would shoot water through the holes in the bottom of the box. which would pour hot soapy water over all the dishes.this changed everyday life because there would be less labor over working harder. also resturaunts would save lots of money over plates because they would have to buy more plates then needed because it took time to scrub all the plates. also less money on employes that scrub the plates.this has changed the world greatly because now we have machines doing our work and now we can have clean non bacterial plates and now less people will get sick. obvioulsy the dishwasher has changed lives more than anyother invention of the 19th century and i hope my reasons make you think so to.