Fundamentally, what are we measuring when we measure voltage? I think that we are really measuring the difference in how charge is perceived by two particular points. Actually, we are only taking the normal, the normal being parallel to the connection.
In the shower today I was thinking about balloons, static and hair. When you charge up a balloon by rubbing it in your hair, you create a potential between the balloon and yourself. More than that, the balloon really is charged up more than everything around. By bringing yourself close to the balloon, your hair gets attracted to the balloon so much so that it physically moves. Now, who does the work, is it the balloon? It's not, it is you, because it will take more work for you to approach the balloon since you must also force your hair to move. Why am I saying all this?
Posted by torque at August 9, 2003 9:03 PM | TrackBackhow can you measure amprage on the ground side of a circut but you can't measure voltage on the ground side?
Posted by: jim at November 5, 2003 12:06 PMthis website is poor it has no good comments and i am only 6 and i know more than you fools
Posted by: Aaron Perks at December 18, 2003 3:40 AMBreaking my heart, he is. :P. "Aaron Perks" wrote from 212.47.64.252, which, on reverse IP, does not resolve. However, via GeoIP, we know he is from the United Kingdom. I search from Google Groups reveals (http://groups.google.com/groups?q=212.47.64.252&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=92bccd2c0df11c45c568b48843b296dd.47872%40mygate.mailgate.org&rnum=1) that Mr. Perks is writing from nauru.alcom.co.uk.
Posted by: torque at December 18, 2003 12:04 PMGood job!
Posted by: Markus at December 13, 2006 12:28 AM