The first atom bomb was set off in the Jemez Mountains of northern New Mexico. The Manhattan Project (U.S. government's secret project) it started in 1939. Albert Einstein warned Franlkin Roosevelt that the Germans were developing nuclear weapons. This is significant because it was the first time they used the atom bomb. It was part of the Manhattan Project.
This was an invention that added to the rapid advancements made in radar technology during World War II. Dr. Percy Spencer invented a box that trapped microwave energy to cook food quickly. The first commercial microwave oven was sold in 1947. It was 5.5 feet tall, weighed 750 pounds and cost $5,000. This is significant because it helped with the advancements of the Microwave Ovens today.
The first electronic digital computer was built by John Atanasoff and Clifford Berry at Iowa State University. They designed the ABC special-purpose computer to solve linear equations. They were funded by the United States Army. The computer was an 18,000 vacuum tube powered machine. It helped to solve the Army's problemof computing artillery and bombing tables. The machine replaced more than 200 women working with mechanical desk calculators. This helped with the advancements of computers today and the new updates we have.
The first color TV receiver was demonstrated by John Logie Baird in 1940. The picture tube TV featured 600 lines of resolution. A rotating disc fitted with transparent color filters and placed in front of the screen supplied the color. By 1944 the screen glowed in three colors from exposure to the electon stream.
The VCR (video cassette recorder) revolutionized how people watched TV. This was significant because it helped in the advancements to DVDs and other movies.
The transmitter radio made radios cheaper, more portable and more accessible to millions. This was significant because it later led to innovations of Ipods and other listening devices.
Gas and Electric had already been available to consumers for some time, but in the 1950's colored appliances with easy-to-clean enamel services were introduced. White was no longer the only available color. All the appliances could be matched in color.