• Schwarzschild Radius Pin - Stemcell Science Shop
  • Schwarzschild Radius Pin - Stemcell Science Shop
  • Schwarzschild Radius Pin - Stemcell Science Shop
  • Schwarzschild Radius Pin - Stemcell Science Shop
  • Schwarzschild Radius Pin - Stemcell Science Shop
  • Schwarzschild Radius Pin - Stemcell Science Shop
  • Schwarzschild Radius Pin - Stemcell Science Shop
1 7

Schwarzschild Radius Pin

Schwarzschild Radius Pin

    The diameter of this pin is the same as a black hole with the mass of Earth.

    If you compress any amount of mass, it becomes denser. If you compress it enough, it will become so dense that light can no longer escape it—this size is the object’s Schwarzschild radius. An object that is compressed smaller than this radius is a black hole.

    If you compressed all of the mass of Earth into the diameter of this pin, it would be so incredibly dense that you would not even be able to see it.

    Every object has a Schwarzschild radius proportional to its density: the Sun's is 3km, Jupiter’s is 2.62m, and a hamburger’s is smaller than a single atom. Karl Schwarzschild derived this property in 1915 using Einstein’s recent field equations.


      $10.00
      $10.00
      Sale Sold out
      Shipping calculated at checkout.
      Matter Subscriber Price:

      View full details

      Shop collections containing this item:
      Apparel Outer Space Science Pins Storewide Wholesale Pins Wholesale Products

      more information

      Further Reading:

      Liquid error (sections/custom-liquid line 1): Could not find asset snippets/icon-checkmark.liquid

      AUTHENTICITY GUARANTEED

      We only list 100% verified authentic items. We work with reputable collectors, and regularly consult with our network of scientists and experts.

      • Free Shipping

        Orders ≥$50 qualify for free US shipping
        Orders ≥$100 qualify for free global shipping

      • Secure Payments

        Pay how you like: credit card, PayPal, After Pay, Shop Pay, Venmo, Apple/Google/Meta Pay & crypto

      • Simple Returns

        Change your mind? No problem. Enjoy easy returns within 30 days.

      Customer Reviews

      Based on 30 reviews
      93%
      (28)
      7%
      (2)
      0%
      (0)
      0%
      (0)
      0%
      (0)
      L
      L.R. (Virginia, United States)

      Transaction and product, perfect in every way!

      L
      L.R. (Virginia, United States)

      Transaction and product, perfect in every way!

      E
      E.W. (Virginia, United States)

      Earth as a black hole. Hope that never happens. Highly recommend

      V
      V.C. (Virginia, United States)

      Article très original. C'était pour offrir à ma fille qui se passionne pour la lune. Elle a adoré !
      Je recommanderais !

      D
      D.R. (Virginia, United States)

      awesome pin, the lettering size is a little inconsistent on the pin but nothing too crazy, def would buy again

      J
      J.M. (Virginia, United States)

      Exactly as described and pictured! Such a cool piece to have!

      More...

      WE TAKE SCIENCE SERIOUSLY

      You deserve better than craft store science products. And we think learning is more impactful when you're holding a tangible piece of what you're learning about. That's why Stemcell exists.

      We're dedicated to providing the best scientific products available—whether they're fragments of scientific importance, experimental activities, or just interesting things that scratch your curiosity itch.

      With every new product launch, our list of new ideas gets longer rather than shorter. So check in often for our latest projects, and thanks for being a part of our endeavor to make the world a smarter place to live.

      Believe in yourself; for everything else, there's science.

      — TERRY MUDGE, FOUNDER & SCIENTIFIC DIRECTOR