Inventions Between 1900 and 1930

the time period amidst 1900 and 1930 saw many scientific innovations, from the disseminate conditioner to the disposable razor blade. From the tankful to the cruise missile. Many of these inventions made our lives easier eyepatch others made them more(prenominal) deadly. the beginning of these inventions is the air conditioner. While many inventers beforehand had made crude mode of aplombing the air, exactly all proved to be ineffective. the earliest mode of cooling the air was putting bowls of ice in preliminary of a fan and the resulting cool air cooled the room.On July 17th 1902 a youthful college graduate, Willis Havilland crew cut drew the plans for his root Apparatus for treating air which was granted its number 1 patent in 1906. this great leap forward in adult male comfort was actually scratch made for a printing condense where when it got humid it would cause the ink to smear. Carriers method of cooling the air baffling using coiled copper tubing filled w ith liquid ammonia, which when air was blown over the coils would cause the moister to condensate giving him cool dry out air.Cooling for human comfort, rather than industrial use, began in 1924, displayed by the three Carrier air conditioners installed in the J. L. Hudson Department Store in Michigan. in beau monde to escape the heat the shoppers of Detroit all went to the air conditioned store. The rise in human cooling spread from the department stores to the movie theaters. It was a cool oasis in an other wise hot world. One of the more deadly inventions of the early 1900s is the tank.The tank got its name because early in WW1 while it was under development the British didnt want the Germans to find out what they were qualification so they shipped them as water tanks. While no one someone can be credited with the invention of the tank it was the British who for the first time used the tank in WW1. To come up with ideas for the tank, the Landship Committee was make and thei r recommendations were that a vehicle firing a explosive shell should be made that could cross a standard German trench of 8 feet wide, and a 4 foot hill.Various designs were tried ranging from vehicles that walked to gigantic powered tires, merely none were really successful, or strategically sound. then came the pocketable Willie. the little Willie was the first modern version of a tank it was based on the tracks of farm equipment and earth moving machines. even though the little Willie was the first modern version of a tank it never saw chip as it was surpassed by an improved tank named big Willie. Big Willie was the first practical example of a tank as it was the first to be used on the battle field.With a top speed of 3 mph and armor up to 3 inches thick it was not the straightaway nor best looking war machine out there but it did its job of providing cover for changeiers storming enemy trenches. Although Little Willie never saw contend and was redundant almost as soon as it was made, it represented a major step forward in early 1900s technology. In lineage to the tank you have the Band Aid. Earle Dickson was employed as a bulge out buyer of cotton for Johnson & Johnson when he invented the banding- embolden in 1921.The reason that Earle invented the band aid was that his wife kept cutting her fingers in the kitchen while preparing food. The precursor to the band aid consisted of gauze and adhesive that the user applied themselves. Earle took a alternate of gauze and stuck it to the middle of a piece of tape, and then covered the adhesive and gauze with a strip of crinoline, to keep it sterile. His boss, James Johnson, saw Earle Dicksons invention and decided to manufacture band aids to the public and make Earle Dickson vice-president of Johnson & Johnson.However tricky his invention was it was slow to start. Until Jonson and Johnson started to give them to the boy scouts for let loose as a P. R. stunt and by 1924 band aids were machine made a nd sold in individually wrapped bandages, it wasnt until 1934 that they switched to the vinyl tape we know today. The cardinal years that followed the turn of the century saw some of the most technological advancements ever seen. From the air conditioner to the band aid, without the inventers of the early 1900s the world would still be stuck in a hot bloody band aid free world.