This man invented world's first hydrogen bomb, but kept it secret for 50 years because..., he is...

Richard L Garwin, 97, was an American scientist who died on May 13, 2025, at his home in Scarsdale, New York. Garwin was the creator of America's hydrogen bomb. He designed the world's first hydrogen bomb at the age of 23, but this invention was kept a secret from the public for nearly 50 years.