Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: vannrox
A sphere of iron 30m across masses 108 kg? I think not. Dunno the specific gravity of iron, but 10800 metric tons is more like it....

Weird idea, but a crummy article.
49 posted on 02/10/2005 12:35:23 PM PST by Little Ray (I'm a reactionary, hirsute, gun-owning, knuckle dragging, Christian Neanderthal and proud of it!)
[ Post Reply | Private Reply | To 1 | View Replies ]


To: Little Ray

Iron density 7874kg/m^3

Volume 30m sphere (assuming 30m is diameter): Pi/6*(30m)^3 gives Pi*4500m^3 volume.

Mass = Pi*4500m^3*7874kg/m^3 (using 355/113 for Pi) = 111,316,061kg.

This is about the weight of the Battleship Missouri (which is bigger, but hollow.)


61 posted on 02/10/2005 1:20:27 PM PST by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
[ Post Reply | Private Reply | To 49 | View Replies ]

To: Little Ray
maybe 108 kg?
87 posted on 02/10/2005 5:04:02 PM PST by King Prout (Remember John Adam!)
[ Post Reply | Private Reply | To 49 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson