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Material With High Elastic Energy Density?

Hi Everyone, I wish to calculate the feasibility of making a small, light, short-range car which runs on the potential...
1 comments posted 21yrs
posted by tow_force
1 comments posted 21yrs posted by tow_force

Low cost material

We are machining trays to carry parts in our manufacturing process. They are approximately 12"x20". In the tray there a...
3 comments posted 21yrs
posted by signaturefactory
3 comments posted 21yrs posted by signaturefactory

Restoring the Surface of Acrylic

Hi May i know what's the easiest way to restore the surface of a piece of acrylic that was previously milled? Can i mak...
6 comments posted 21yrs
posted by pcywong
6 comments posted 21yrs posted by pcywong

casting of glass

Does anybody know or give me a reference where to find the volume change of glass from cast to hardened material. Peter
1 comments posted 21yrs
posted by pp
1 comments posted 21yrs posted by pp

detecting propylene oxide

Help! I'm wondering how to detect the presence of propylene oxide in model rc racing fuel. Said fuel normally consists...
0 comments posted 21yrs
posted by tzadkiel7
0 comments posted 21yrs posted by tzadkiel7

Secondary electron mfp in PMMA

I have tried to find the mean free path for low energy electrons (e.g. secondaries with < 100 eV energy) in PMMA or oth...
2 comments posted 21yrs
posted by flipsu5
2 comments posted 21yrs posted by flipsu5

electrospinning

Hi...i've been electrospinning recently but there is one frustration that keeps cropping up...the problem is that the p...
0 comments posted 21yrs
posted by qniverse
0 comments posted 21yrs posted by qniverse

Need a prototype development house near Charlotte

I've got a little problem with limited resources in my area. I know a number of machine shops that can make parts for m...
0 comments posted 21yrs
posted by sporkedUNDERLINEagainMUNGE
0 comments posted 21yrs posted by sporkedUNDERLINEagainMUNGE

Anyone know a solution to this problem?

Hello, i have a bit of a problem which i was hoping i might find a solution to on this group. I need to make large scal...
2 comments posted 21yrs
posted by newsgroupaddress
2 comments posted 21yrs posted by newsgroupaddress

incompressible flow?

Why are fluids so often assumed to be incompressible? Incompressibilty of fluids is one of the most missleading terms in...
5 comments posted 21yrs
posted by c80705
5 comments posted 21yrs posted by c80705

How can you make large foam blocks?

Does anybody know how to (inexpensively) make large foam blocks? I need a size of approx 4ft x 4ft x 16in. I want to us...
7 comments posted 21yrs
posted by wdoe999
7 comments posted 21yrs posted by wdoe999

looking for craft materials....any suggestions?

Hello, i'm a craft worker who has stumbled across this group. I was wondering if anyone here can think of any materials...
4 comments posted 21yrs
posted by newsgroupaddress
4 comments posted 21yrs posted by newsgroupaddress