Editing 171: String Theory
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==Explanation== | ==Explanation== | ||
− | {{w| | + | The {{w|string theory}} is a theory in theoretical physics for explaining how the universe works. It is a theory trying to explain everything belonging to our universe; specifically, it aims to unite {{w|general relativity}} and {{w|quantum field theory|quantum field theories}}. |
− | When a new theory is thought up, the theorists will usually supply some predictions, measurable by experimental physicists. String theory's predictions, however, are few and extremely difficult to test; | + | When a new theory is thought up, the theorists will usually supply some predictions, measurable by experimental physicists. String theory's predictions, however, are few and extremely difficult to test; since its inception over forty years ago, string theory has yet to be experimentally tested. |
− | [[Randall]] is unimpressed with string theorists ( | + | [[Randall]] is unimpressed with string theorists (see the punchline to [[397: Unscientific]]). String theory has not provided any ''useful'' new knowledge to engineering science as quantum physics has, and lacks the imagination-stirring philosophical implications that the general population associates with other fields — for example, quantum scientists have proven predictions like {{w|quantum tunneling|tunneling}}, used by modern electronic devices, and relativity is relevant to modern systems like {{w|GPS}} navigation. String theory hasn't reached that stage yet. |
− | + | At the title text Randall points out that string theory is so technically difficult that at essentially every level (except, presumably, the very top), this explanation is as good as it gets. | |
==Transcript== | ==Transcript== | ||
− | + | :String Theory summarized: | |
− | :String | ||
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:Cueball: I just had an awesome idea. Suppose all matter and energy is made of tiny, vibrating "strings". | :Cueball: I just had an awesome idea. Suppose all matter and energy is made of tiny, vibrating "strings". | ||
:Friend: Okay. What would that imply? | :Friend: Okay. What would that imply? |