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Tungsten Sphere

Also known as wolfram (hence the W)

  • Be hands-on with the periodic table of the elements
  • Amaze your friends with how heavy such a small object can be
  • Earth's gravitational pull is just fine
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$229.99

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Note: This item is excluded from site wide discounts.

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Also known as wolfram (hence the W)

Marty McFly: Whoa. This is heavy.
Dr. Emmett Brown: There's that word again. "Heavy." Why are things so heavy in the future? Is there a problem with the Earth's gravitational pull?
- Back to the Future
No, srsly. This is heavy. 

This is a sphere of tungsten alloy. It's 90% tungsten, a super-dense element. You'll find it in  incandescent light bulb filaments, gyroscopes, disk drive heads, radiation shielding, race cars, and a variety of weapons. We've even sent some out of our solar system on Voyager 1 (it's an absorber inside the electron telescope on the Cosmic Ray Subsystem). 

We're thinking we'll keep this one in our solar system. Maybe send it to you? You can put it on your desk and watch people scramble as they attempt not to drop it immediately on their own foot. No, really. Look at it. It looks like an innocent steel ball, just over 2" across. And then you pick it up. It weighs over 3 pounds. That's how much your brain weighs. Well, that's probably not a good comparison since we never really carry around our brains without our skulls. How about a snowy owl? Oh wait. The first two Harry Potter books in hardcover. There we go.

ProTip: Do not try to melt this down. Tungsten has the highest melting point of all elements discovered, over 6000° F. Which means that until we find somebody who can forge us a tiny Thor's hammer out of this, we're going to have to settle for this sphere.

Product Specifications 
  • Tungsten Sphere
  • Be hands-on with the periodic table of the elements
  • Amaze your friends with how heavy such a small object can be
  • Density: 17 gm/cc / 0.614 lbs/in3
  • Hardness: HRC 25
  • Materials: 90% tungsten / 7% nickel / 3% iron (aka 90W-7Ni-3Fe)
  • The alloying elements improve the ductility and machinability of the sphere, plus make it less brittle
  • Dimensions: 2.175" diameter
  • Weight: 3.375 lbs.
  • Includes tungsten alloy sphere and ring stand

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