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Weight Of MARBLES!!

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Weight Of MARBLES!!

Unread postAuthor: chaos » Wed Feb 28, 2007 7:38 am

Hey everyone,

i have searched high and low for the weight of of 15mm glass marble, ive tried google many times to no prevail. if somebody know a rough weight of a 15mm(9/16 i think) marble it would make me very happy.

1000fps here i come (hopefully)

thanks

peace
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Unread postAuthor: frankrede » Wed Feb 28, 2007 7:50 am

weigh one they vary in weight from manufacturer and style
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Unread postAuthor: Hotwired » Wed Feb 28, 2007 10:55 am

You could estimate it from finding out the weight of glass/cubic cm and finding the volume of glass in a 15mm sphere.

So from http://www.simetric.co.uk/si_materials.htm I find that window glass is 2579kg per cubic metre.

Thats 2579000 grams per cubic metre

or 2.579g per cubic centimetre.

A sphere of 1.5cm diameter has a volume of 1.77 cubic centimetres so if it is made of glass then it would weigh 4.56g.

A rough guess of course.
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Unread postAuthor: shud_b_rite » Wed Feb 28, 2007 1:38 pm

I have some of the marbles you are talking about. A pack of 100 weighs 520 grams so 1 weighs 5.2 grams. The ones I have I think are reasonably light, I think the catseye ones are heavier.
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Unread postAuthor: chaos » Wed Feb 28, 2007 2:57 pm

kool thank everyone this helps

peace
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Unread postAuthor: Pyro Ninja » Thu Mar 01, 2007 12:29 am

mine weigh 5 grams
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Unread postAuthor: chaos » Thu Mar 01, 2007 1:49 am

thanks mate thats about all the info i need

peace
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Unread postAuthor: Hotwired » Thu Mar 01, 2007 6:06 am

I've just realised what was pissing me off about those marbles...

Find the area of a circle 0.75cm in radius then find its volume...

Is it just me or are they exactly the same?

(besides the fact that one's squared and one's cubed)
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