Black hole expert explains black holes in 5 levels of difficulty
Astrophysicist Janna Levin, PhD, is asked to explain black holes to 5 different people; a child, a teen, a college student, a grad student, and an expert...
"Vacuum cleaners don't suck, they blow. The only thing in the universe that sucks is a black hole!" -Mr. Malcolm, Catholic high school physics teacher, of happy memory
"Vacuum cleaners don't suck, they blow. The only thing in the universe that sucks is a black hole!" -Mr. Malcolm, Catholic high school physics teacher, of happy memory
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