i need to buuild an am arial to pick up shortwave (specificly around 15 MHz) any ideas in the way of size and method. i was thinking a square frame with the appropriate number of rings of wire i have...
I will be chucking my computer away soon and I would like to know how to retrieve things (previously deleted) so i can save them to disk. Any of you know how to do this? Also how do I delete from my...
When my laptop computer has nothing to do, for example if it is sitting idle while I am reading a document, the hard drive starts making noises and the hard drive light blinks away. I'm talking about...
i have just purchased a hauppauge wintv-nova-t-usb2 external unit which is a combined tv card and digital tv box--i have set it up and installed all the software and it is working fine--as far as it...
Having read the answers to the other questions about these damn bricks and their resistance i still need one answer. Would it be practical to heat the brick up (ie in a kiln) then remove it and allow...
i have a 500 litre plastic (teflon) tub that has a few splits and so is no longer waterproof. anybody know a good way of repairing aprt from using a soldering iron to rejoin as i have already done...
I'm thinking of the way the heat shield reaches very high temperatures. If you had a block of ice in space and if fell to earth as it came into the atmosphere what would happen to it would it heat up...
My son has built a model of a fairground ride for a school project. He used a small electric motor powered by a 4.5 V battery to drive it but he said he wanted a speed control for it. So I fitted...
I was just reading "How quick is evolution?" question when Bob a job said "toby19 i hope your joking,this is the science section." So does anyone believe or is everyone here atheist? Discuss. Sorry...
Im currently researching for a physics plan about resistance of bricks and unsure on a few things and would like some opinions please. we have to make a current flow through the two end faces of the...
I live in a cottage on a hill out in the sticks. Nearly every time there is a storm, either the power lines or the phone lines get struck by lightning. The phone socket has been burnt out...
Reading through the answers to many of the questions posted on Answerbank it is clear that a few key people contribute most of the answers. In the responses it seems as if these people are very...