61–70 of 336 posts
Glassblowers use tungsten rods to pierce borosilicate glass. When you get tungsten and a piece of glass hot, you can push the tungsten through the glass fairly easily. Tungsten doesn’t get “wet” and stick to glass at these temperatures (~2000F), unlike other metals we use such as steel or brass. We tend to buy these at the welding store (arc welders use them as electrodes or something).
Much cheaper if you can negotiate a price while cutting out the middleman (Scamazon): https://www.tungstenheavypowder.com/tungsten-balls-spheres-c...
Gotta say I love the ad copy for the 10 pound cube: ADD to your collection! This cube is the larger version of the world famous tungsten cube COMPARE the density to our 2.5" Aluminum cube to enhance the experience
How about the 4" 40 pound $2,999 one? > WHY? We thought nobody would buy our 17.6lb, 3" tungsten cube. We were so, so wrong
Much cheaper if you can negotiate a price while cutting out the middleman (Scamazon): https://www.tungstenheavypowder.com/tungsten-balls-spheres-c...
Cool cube and I want one. But a metalworking friend of mine warned against getting a ring made out of tungsten. Apparently a climber had one on and broke his ring finger, and the EMTs couldn't get the ring off because the finger had swollen and they couldn't cut the ring due to the strength of the metal. They ended up having to amputate and re-attach the finger (much longer and it would have had to be amputated anywa…
I'm surprised the EMTs did not know how to remove the ring. Squeeze it with locking pliers and it will break into pieces.
I held a neptunium (20.45 g/cc) sphere once. It was about the size of a baseball and I hard the hardest time lifting it. It was like lifting a full gallon jug of milk when you think it's empty - you apply a force and it doesn't budge. I had to lift it as if I was lifting a stack of books to get it off the pedestal.
I bet a lot of energy went into creating that sphere…