Ray guns have been featured in everything from War of The Worlds t Star Wars, yet it seems a hand held ray gun is still a thing of science fiction. Here however is a history of the imaginary device as it appears in different books and movies.
The ray gun is but one invention that, in the optimistic futurism of the early-to-mid 20th century, seemed to be just around the corner, like personal jet packs, food in pill form, and machines that launder your washing and hand it back to you neatly wrapped up in Celophane (thanks, Lost In Space).
Link