You can't expect to look all dapper and gentlemanly without knowing Suiting 101.
The concept of infinity is hard to grasp because it is an abstraction. There are no tangible objects in our lives that are truly infinite in number so we really have nothing to compare it to.
Is there more than one universe? Physicist Brian Greene shows how the unanswered questions of physics have led to the theory that our own universe is just one of many in the "multiverse."
Bobby McFerrin uses the pentatonic scale and an audience's expectations to demonstrate neural programming at the World Science Festival 2009 . . Thanks for w...
Paul Hewitt explain the difference between mass & weight
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