Alvarez's colleagues sometimes called him the "prize wild idea man" because of the huge range of his activities. He did all kinds of research into the atomic nucleus, light, electrons, radar, and so forth. In 1943 he was part of the Manhattan Project in Los Alamos and developed a detonating device for the atomic bomb. He was on board the bomber Enola Gay when it dropped the bomb on Hiroshima. Alvarez was shocked and sickened by what he saw, but because the war ended so soon afterwards, he never expressed doubts about the bomb's use. In fact, he was one of few scientists who had worked on the bomb who felt the U.S. should continue weapons development and make a hydrogen bomb. He continued to do varied work in high energy physics and in 1968, received the Nobel Prize.
In 1965 Alvarez took his physics expertise on an archeological expedition. A U.S.-Egyptian team was trying to find hidden chambers in the Giza pyramid in Egypt by using subatomic particles to calculate the pyramid's density. They didn't find any chambers, but this began Alvarez's work with his son Walter, a geology professor at Berkeley. Together they developed a theory in 1980 that a giant asteroidstriking Earth had killed off the dinosaurs around 65 million years ago. They had strong geologic evidence, but the theory is still being debated.
Alvarez's other claims to fame are in assisting the Warren Commission that investigated the assasination of President Kennedy and holding 22 patents, including an indoor golf-training machine he developed for President Eisenhower. Alvarez died of cancer in 1988.
In 1940, as a result of World War II, Alvarez and a group of scientists built a radar system to help