Helium : Introduction ,Discovery ,Chemical and Physical Properties ,Occurrence ,Production ,Uses and Significance

Helium:Introduction ,Discovery ,Chemical and Physical Properties ,Occurrence ,Production ,Uses and Significance Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that heads the noble gas group...

The 1948 Patent for the Cathode-Ray Tube Amusement Device by Thomas T. Goldsmith Jr. and Estle Ray Mann

The 1948 Patent for the Cathode-Ray Tube Amusement Device by Thomas T. Goldsmith Jr. and Estle Ray MannThe development of video games, one of the most significant cultural and technological phenomena of the 20th and 21st centuries, began in the most unlikely of ways. In 1948, Thomas T. Goldsmith Jr. and Estle Ray Mann, two engineers with an interest in electronics, were granted...

The 1940 Isolation of Plutonium-238 at Berkeley: A Landmark Discovery in Nuclear Science and Technology

The 1940 Isolation of Plutonium-238 at Berkeley: A Landmark Discovery in Nuclear Science and Technology The year 1940 marked a monumental breakthrough in the field of nuclear chemistry and physics with the first isolation of plutonium, specifically plutonium-238 (Pu-238), at the...