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Old 09-05-2012, 11:51 PM   #21
AXGreg

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DU?
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Old 09-05-2012, 11:51 PM   #22
shiciapsisy

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Platinum or Iridium would be about the same.

None of these would be inexpensive options...
Out of curiosity, where would tungsten sit in that range?
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Old 09-05-2012, 11:54 PM   #23
Zenunlild

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I found these

Baseball 445.1 ' = 135.666 m
Cricket ball: 140.2 yd = 128.198 m
Golf Ball: 170 yd = 155.448 m

strangely the site doesn't mention giant ball bearings.
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Old 09-05-2012, 11:58 PM   #24
nasxbrtyol

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Density of various metals (g/cc)

Osmium 22.61
Iridium 22.56
Platinum 21.46
Rhenium 21.02
Gold 19.84
Tungsten 19.25
Uranium 18.95
Tantalum 16.65
Mercury 13.53
Hafnium 13.31
Rhodium 12.41
Palladium 12.02
Thallium 11.85
Technetium 11.5
Lead 11.3
Silver 10.5
Molybdenum 10.07
Lutetium 9.84
Bismuth 9.81
Thulium 9.32
Erbium 9.066
Copper 8.96
Nickel 8.912
Cobalt 8.86
Holmium 8.795

several others and then Iron 7.87. Steels vary in density but they are all about that.
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Old 09-06-2012, 12:01 AM   #25
BlackBird

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Density of various metals (g/cc)

Osmium 22.61
Iridium 22.56
Platinum 21.46
Rhenium 21.02
Gold 19.84
Tungsten 19.25
Uranium 18.95
Tantalum 16.65
Mercury 13.53
Hafnium 13.31
Rhodium 12.41
Palladium 12.02
Thallium 11.85
Technetium 11.5
Lead 11.3
Silver 10.5
Molybdenum 10.07
Lutetium 9.84
Bismuth 9.81
Thulium 9.32
Erbium 9.066
Copper 8.96
Nickel 8.912
Cobalt 8.86
Holmium 8.795

several others and then Iron 7.87. Steels vary in density but they are all about that.
Coolies. Tungsten be heavy then. Heavier than I thought.
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Old 09-06-2012, 12:27 AM   #26
sbrscnds

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I suppose tungsten would be the cheapest of the farken heavy metals (those over 15 g/cc).

Then again I don't know what a wheelbarrow full of depleted uranium from some busted arse former soviet republic costs.
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Old 09-06-2012, 04:56 AM   #27
maxsobq

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shot put
.5 x 7.26 x 13.95² = 706 Joules

cricket ball
.5 x 0.1559 x 44² = 151 Joules

?
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Old 09-06-2012, 07:10 AM   #28
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Not sure if it helps the discussion. I once tried to throw a steel Boules ball with the same action as one would throw a cricket ball. Not a good idea, it was too damn heavy so I aborted the throw - would have hurt my elbow or wrist otherwise. They can only be lobbed long distances (over a farm dam maybe 25-30m) with a straight arm using a bowling action.

Weight of the ball affects the elbow and wrist joints - which are critical to throwing action. Too heavy an object and you lose the power to throw it. Bowling action isn't nearly as far.
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