Tag Archives: anyone

anyone know where i can find a formula to find how much air pressure can hold a certain weight above water?

was wondering if there is a formula for finding out the power of air pressure vs. water….ie. if i had a canister, and i wanted to know how much weight (or a certain load from above) it would be able to hold up….by just seaing it off at atmospheric prssure, or by adding additional psi to it…
….anyone know what atmospheric pressure at sea level is? and is there a formula for the size of the enclosed “capsule” that will house the are, to determine its “lifting strength to hold a determined amount of weight without the “capsule” itself going very far into the water?

anyone know where i can find a formula to find how much air pressure can hold a certain weight above water?

was wondering if there is a formula for finding out the power of air pressure vs. water….ie. if i had a canister, and i wanted to know how much weight (or a certain load from above) it would be able to hold up….by just seaing it off at atmospheric prssure, or by adding additional psi to it…
….anyone know what atmospheric pressure at sea level is? and is there a formula for the size of the enclosed “capsule” that will house the are, to determine its “lifting strength to hold a determined amount of weight without the “capsule” itself going very far into the water?

i need a gift idea…?

I’m trying to find a great gift idea for christmas. I would love something that I can buy for my parents, in-laws, grandparents, and 5 grown brothers. Preferably less than $30 each. I thought that “AutoCool” thing on TV looks pretty cool. Its solar powered and is supossed to keep your car cool when its parked so when you get in it, its not hot. Would that be a weird gift to give at christmas time? Do you think thats a good idea, or does anyone else have any other good ideas?

Can anyone recommend a place to buy a custom made to order motorized solar shade? I need a height of 240″

This is to cover three rows of windows that go up 20 feet high. I want a motorized shade (hard wired) that will keep out the afternoon sun/heat….we have sizzling summers in southern Louisiana…..but still be attractive. These windows will have direct sun in the afternoons. All websites I have seen only go up to about 192″ in height. Thanks!

generator and alternator for wind turbine?

i’m building a electric wind turbine for a school project, and i have everything but the generator/alternator. does anyone know exactly what i need to generate electricity from a source that spins at various speeds, and where i can get those supplies? all i need is the electric stuff, i have everything else figured out. and don’t tell me its not possible, i’m basically done

generator and alternator for wind turbine?

i’m building a electric wind turbine for a school project, and i have everything but the generator/alternator. does anyone know exactly what i need to generate electricity from a source that spins at various speeds, and where i can get those supplies? all i need is the electric stuff, i have everything else figured out. and don’t tell me its not possible, i’m basically done

Has anyone used the Solar-Powered Auto Cool device shown on tv to keep your car cool on hot days? I am wanting

to know if it is worth the money?