What’s the smallest thing in the universe?
That's a complicated question. After all, fundamental particles are what physicists call the most basic building blocks of matter, and they are so minute that no current technology--nor any technology we can even envision--can pinpoint their size.
"The question is a little hard to answer as you have put it, since fundamental particles don’t have measurable sizes," Dr. Andy Parker, the particle physicist who heads the department of physics at the University of Cambridge in the U.K., told The Huffington Post in an email. "Physicists call them 'point-like' to indicate that no size has so far been detected."
But if the universe's smallest particles are that small, how do scientists know about them? To find the answer to that question, I sat down with Dr. Joe Lykken, deputy director of the Fermi National Accelerator Laboratory, the huge particle collider facility located 35 miles west of Chicago.
Check out the video above and/or click below to read the transcript. Don't forget to leave your thoughts in the comments. Talk nerdy to me!CLICK HERE FOR FULL TRANSCRIPT
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