We are all familiar with Dr. Robert Bruce Banner, a nuclear physicist. But we are even more familiar with his second persona, the Hulk—who, when enraged, transforms from a human into an immensely powerful “monster” and smashes everything in sight. Both characters are fictional, created from a small dose of science mixed with a large measure of imagination.
Many more such superheroes and supervillains have been created in comic books, short stories, novels,
