PBS Space Time

Fermions Vs. Bosons Explained with Statistical Mechanics!

If I roll a pair of dice and you get to bet on one number, what do you choose? The smart choice is 7 because there are more ways for 2 dice to come up 7 than any other number. Well, it turns out that you can apply the same logic to predicting the behavior of the universe.

Fermions Vs. Bosons Explained with Statistical Mechanics!

15m 51s

  • Does the Planck Length Break E=MC^2?: asset-mezzanine-16x9

    Does the Planck Length Break E=MC^2?

    S10 E27 - 17m 19s

    Every good nerd knows that E=mc^2. Every great nerd knows that, really, E^2=m^2c^4+p^2c^2 Want to know what that even means? Sure, I’ll tell you, but today I’d like to invite you to an even higher level of nerdom with extra bits to Einstein’s famous equation that will make even the greatest nerds quiver in their … space time merch if they turn out to be real.

  • What If the Cosmological Constant Is Not Constant?: asset-mezzanine-16x9

    What If the Cosmological Constant Is Not Constant?

    S10 E23 - 15m 14s

    We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that the acceleration rate is itself constant, which will result in ultimate heat death. But a recent survey of primordial sound waves frozen into the way galaxies are sprinkled through the universe reveals that this fate is now in question.

  • What If The Universe Did Not Start With The Big Bang?: asset-mezzanine-16x9

    What If The Universe Did Not Start With The Big Bang?

    S10 E22 - 16m 8s

    Space is expanding evenly everywhere, but if you rewind that expansion you find that all of space was once compacted in an infinitesimal point of infinite density—the singularity at the beginning of time. The expansion of the universe from this point is called the Big Bang. We like to tell this story because it's the correct conclusion from the description of an expanding universe that followed

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