Vacuum tube

When all passengers board, compressed air rushes through the tube. This is similar to pneumatic tubes used in banks. Pneumatic tubes are systems that propel cylindrical containers through networks of tubes by compressed air. The pneumatic transportation system is used in many hospitals. Doctors use the system to transport blood to patients in need. Doctors also transport specimen and…

the Colossus, which was the world’s first electronic digital computing machine. Colossus was created at Bletchley on December of 1943 under the supervision of Max Newman, and consisted of 1,500 vacuum-tube circuits that served as an internal electronic memory; eventually the Colossus had 2,400 vacuum-tube circuits by July 1, 1944. The ability for the Colossus to decrypt Hitler’s message was crucial to the Allies success on D-Day. One decrypted message from Hitler revealed that he was oblivious…

absorb any water in it. Then the ether was again transferred to a large test tube. Another 1.5 mL of diethyl ether were added to the flask with to the anhydrous granular sodium sulfate and was transferred to the large test tube with the either inside. The large test tube with the diethyl ether sat open for a few days so that the ether would evaporate and that a solid white substance would be left in the large test tube to be weighed and record it melting…

The variety of deep colors appealed to the public eye, as well as the longevity of the tubes. And as far as the actual light itself, it was very adequate, and overall presented to a business a colorful and useful method of advertisement. However, the lights produced an irritating flickering that caused headaches and eye strains. Neon lamps…

Discussion of Results During the first week the goal was to determine the unknown compound. In order to determine the unknown compound, many tests were performed testing the solubility, pH level, conductivity, cations present (flame test), and the anions present in the compound. The anion test had positive results for the sulfate test due to the formation of a white precipitate, indicating the presence of a sulfate ion. For the sulfate test the unknown solution, potassium sulfate, and combining…

The filter paper traps the solid while a vacuum draws the liquid through the funnel into the flask. These methods aid in the synthesis of the artificial kidney stones in order to determine the kidney stones solubility. Methods: The three most common kidney stones, such as Calcium Oxalate (CaCl2…

and appearance, As a final step of part A , we will recover copper metal . In Part B we will synthesize two copper (I) compounds and observe their reactions . However we also get to learn using new techniques for instance , Decantation technique , vacuum filtration…

mixture was heated with a hot water bath for 30 minutes. The flask was cooled to room temperature and then poured into 50 mL of ice-cold water in a 200 mL beaker. The crude product was isolated by vacuum filtration and then washed with cold water. The crude product was then allowed to drain under vacuum until nearly dry. The aqueous filtrate was disposed of in the sink with running…

mechanics, and “Opera Geometrica” (1644), a book on geometric works, which include findings about fluid motion and projectile motion. The public view of vacuums in Torricelli’s time was that the did not exist. Together with Galileo, Torricelli concluded that vacuums did exist. Using mercury and a glass tube, Torricelli created the first sustained vacuum to prove everyone wrong. This led to the invention of the barometer, which rose up and down when the air pressure outside of the instrument…

Newcomen's first working engine was installed at a coal mine at Dudley Castle in Staffordshire in 1712. It had a cylinder 21 inches in diameter and nearly eight feet long, and it worked at 12 strokes a minute, raising 10 gallons of water from a depth of 156 feet. The engines were rugged and reliable and worked day and night - a factor which made them hugely successful. By the time Thomas Newcomen died in 1729, there were at least 100 of his engines working in Britain and across Europe. They were…