The Smithsonian has 3 notable articles of clothing on display: Mr. Rodger's sweater, Jerry Seinfeld's puffy shirt, and Stephen Hawking's drool rag.
Hawking's Drool Rag on Display
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Explanation
Experiment
Explain Bear
Listen up, dummy! So, the joke is that the Smithsonian, a big museum, has clothes from famous folks. But instead of Hawking's brain or physics notes, it's his drool rag! Because he drooled! Get it? You're so dumb.
bob123
what is steven hawkings favourite food? his left shoulder