On Sat, 23 Mar 2013 15:01:36 -0700, pyotr filipivich
wrote:

Gunner on Mon, 18 Mar 2013 15:05:10 -0700 typed
in rec.crafts.metalworking the following:
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 Pefhany 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

Check Harbour Fright

Good luck with that, given their quality control. The first ten pages
of their micro black hole manual is filled with these:

CAUTION: SIZE OF BLACK HOLE MAY VARY FROM DIAGRAMS.

CAUTION: STRENGTH OF BLACK HOLE MAY VARY FROM LISTED STRENGTH.

CAUTION: DENSITY OF BLACK HOLE MAY VARY FROM SPECIFICATIONS.

CAUTION: COLOR OF BLACK HOLE MAY VARY.

CAUTION: DO NOT USE BLACK HOLE DURING STORMS.

CAUTION: DO NOT USE BLACK HOLE NEAR ELECTRICAL POWER LINES.

CAUTION: BLACK HOLE NOT FOR USE BY CHILD UNDER THE AGE OF 18.

CAUTION: BLACK HOLE NOT MADE IN CHINA.

CAUTION: BLACK HOLE MAY BE IMPERIAL, METRIC, OR WHITWORTH.

CAUTION: DO NOT USE BLACK HOLE FROM TOP OF LADDER.

CAUTION: DO NOT USE BLACK HOLE INDOORS.

et cetera...

--
In order to become the master, the politician poses as the servant.
--Charles de Gaulle