Remsen subsequently studied chemistry in Germany, studying under chemist , receiving a Ph. When the solution is diluted with water, water molecules displace the nitrate ions in the coordinate sites around the copper ions, causing the solution to change to a blue color. In 1945, Spencer was fiddling with a microwave-emitting magnetron — used in the guts of radar arrays — when he felt a strange sensation in his pants. Control of Commercial Trusts This was a period in which much public concern arose regarding the growing power of the great industrial trusts. The world learned the first lesson more readily than it learned the second.
Greatbatch realized the precise current could regulate a pulse, overriding the imperfect heartbeat of the ill. His ashes are located behind a plaque in Remsen Hall; he is the only person buried on campus. Fahlberg first omitted mention of Remsen as a participant in the research, then tried to make it appear that he, not Remsen, had been the senior investigator. The next morning he went into the lab and tasted the chemicals they had been working with the previous day. A great colored cloud arose. Prediction of Neutron; Harkins-Chadwick The chemist Professor pictured left of the University of Chicago wrote several papers during this period pointing out that the nucleus probably contained a neutral particle with a mass close to that of the proton.
The story of their discovery is a fascinating one of incredible chance. Madison: The University of Wisconsin Press, 1985, p. Also in that same year, he made a remarkable, accidental discovery with a fellow researcher Constantine Fahlberg when they were working on a derivative of coal tar. To lead the task in this instance, Remsen selected , the incumbent president of the Carnegie Institution. Chair of the Remsen Referee Board which resolved disputes about the purity of foods.
Saccharin is a synthetic, white, crystalline powder that melts at 228. In 1872, after researching pure chemistry at University of Tübingen, Remsen returned to the United States and became a professor at Williams College, where he wrote the popular text Theoretical Chemistry. His laboratory was a prolific source of well-prepared organic chemists. Fit the stopper into the top of a one-liter Erlenmeyer flask. Remsen's book and reputation brought him to the attention of , who invited him to become one of the original faculty of Johns Hopkins University. The undergraduate course was lengthened from three to four years, and a fund-raising drive allowed building to begin on the Homewood campus.
There he founded the chemistry department. Remsen also answered the call of President Theodore Roosevelt, heading a national referee board considering questions relating to the control of food products and their adulteration. The second lesson was that he who is to apply scientific thought and method to industrial problems must have a thorough knowledge of the sciences. The air in the neighborhood of the performance became colored dark red. In 1879 Remsen founded the American Chemical Journal, which he edited for 35 years.
He then followed Fittig to Tubingen, where he was an assistant for two years. The motives would be different, but so far as conduct is concerned the results would be practically identical. This should be placed in your fume hood. It was a revelation to me. Heiserman, Exploring Chemical Elements and their Compounds. The next day at his lab he tasted the chemicals that he had been working with the previous day and discovered that it was the oxidation of o-toluenesulfonamide he had tasted the previous evening.
When saccharin is dissolved in water in large amounts, the solution is very bitter. In the course of his academic career, which also involved a period as president of the University of California, Gilman had exerted a revolutionary influence on higher education in the country. The fundamental characteristic of the scientific method is honesty. Before this point, pacemakers were television-sized, cumbersome things that were temporarily attached to patients from the outside. This pioneering plastic was moldable into virtually any shape, in any color, and could hold its form against high temperatures and daily wear — making it a star among manufacturers, jewelers, and industrial designers.
He served as the first president of the Carnegie Institution in Washington, D. Cut a two cm square of copper. Throughout his academic career, Remsen was known as an excellent teacher, rigorous in his expectations but patient with the beginner. He edited the Journal for 35 years until it was combined with the Journal of the American Chemical Society in 1915. Be sure to place the watch glass over the glass cylinder after adding the nitric acid to prevent the escape of nitrogen dioxide gas.