On 3/18/2013 5:05 PM, Gunner wrote:
On Mon, 18 Mar 2013 16:27:12 -0400, Spehro Pefhany
wrote:

On Mon, 18 Mar 2013 20:18:26 +0000 (UTC), Cydrome Leader
wrote:

Spehro wrote:
On Mon, 18 Mar 2013 15:54:19 -0400, Bob Engelhardt
wrote:

35 lb tungsten "ballast" blocks (race cars): $1877

http://www.stockcarsteel.com/tungsten/

Twice as dense as steel& 50% more than lead, but what a price to pay
for the little space that it saves.

We've got a block of tungsten that pretty much fills up the inside of
a little plastic Pelican case. It's funny watching people do a
double-take when they pick it up.

What's it for?

Testing a gravitational sensing instrument, so something close to a
point mass is useful.

What..couldnt get a good deal on a micro blackhole? Check Edmonds
Scientific, I think they are running a special this week.

Grin

Gunner


Some interesting new approaches to studying such phenomena -

http://www.economist.com/news/scienc...hing-how-build)