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How fast can an accelerator fire an object?

Saying it operated in the vacuum of space. is there a speed limit to how fast an electro-magnetic repulsion accelerator...
23 comments posted 18yrs
posted by RecreationalPoker
23 comments posted 18yrs posted by RecreationalPoker

Microwave oven efficiency

How efficient is a microwave oven? Does the efficiency decline as the oven ages? Our 15-year old kitchen microwave appe...
7 comments posted 18yrs
posted by gordo432xRemove
7 comments posted 18yrs posted by gordo432xRemove

carbon fibre i beam

HI, I hope this is the right area to post this question, if not I am sorry. I am looking to change the 100 year old woo...
4 comments posted 18yrs
posted by carlbernardi
4 comments posted 18yrs posted by carlbernardi

size of steel

i want to make a tow dollie the size of which would be 8 feet from end to end that would lift 13ooo lbs with two beams r...
1 comments posted 18yrs
posted by colalella
1 comments posted 18yrs posted by colalella

help pls

pls im working on course work , play ground with speed limiting device, postion of bearing seatings,limit and fits requ...
0 comments posted 18yrs
posted by addfredson4u2000
0 comments posted 18yrs posted by addfredson4u2000

I'm crap at physics - help!

I have a large gear having a moment of inertia about it's axis of 0.5Kgm2. If I wanted to accelerate it from static to...
3 comments posted 18yrs
posted by flint
3 comments posted 18yrs posted by flint

Floating element in a spinning cylinder

Hi, Everything: I am not a mechanical engineer. But I am involved in designing a mechanical structrue that can accommod...
9 comments posted 18yrs
posted by qing3000
9 comments posted 18yrs posted by qing3000

Statistica Sinica January issue

Dear All, I am sending you the table of contents for the Jan 2008 issue of Statistica Sinica. In this issue, there are...
0 comments posted 18yrs
posted by Statistica.Sinica
0 comments posted 18yrs posted by Statistica.Sinica

change in vicosity consumes energy?

if a lubricating oil has a low Viscosity Index, this indeicates that as the temperature rises, the viscosity decreases...
6 comments posted 18yrs
posted by dances_with_barkadas
6 comments posted 18yrs posted by dances_with_barkadas

Hydrogen Storage

Is it possible/feasable to use the pressue of water of the ocean to store hydrogen in a cannister type system? The idea...
12 comments posted 18yrs
posted by sugna41
12 comments posted 18yrs posted by sugna41

laminated hooks

I'm designing a laminated hook for use in foundry. I have bought the DIN 15404, but nothing is specified about the junc...
9 comments posted 18yrs
posted by maxpcc
9 comments posted 18yrs posted by maxpcc

Developing Product Spec

Greetings: I am interested in gaining some backgound information and guidance on the development of product specificati...
4 comments posted 18yrs
posted by voice_of_reason
4 comments posted 18yrs posted by voice_of_reason

What's 'Oil Film Speed' ?

I got a analysis report on journal bearing. On report, there are 'Oil Film Speed' Actually, I don't understand what's t...
0 comments posted 18yrs
posted by junho.ahn
0 comments posted 18yrs posted by junho.ahn