Recent content by sirius0

Perhaps they turn it this way and that and accept the best result to eliminate angular effects in how it is held?

Perhaps a boring reason like the officer is eyeing the fork to see when the initial chaotic clang vibration has dropped; then he turns it side on. Also it is media so "Oh the picture doesn't look so good that way just turn it a bit... There that's better!" :cool:

If this is a max demand question? You will need to tell us where the job is as there will be a standard to follow

I wonder whether the load problem was more from the dimmer? Same solution antway. :)

Just curious. Why do you need to measure the resistance of these pins?

Hmm there is more to your PIN doide than I thought! I need to learn a little too. (the following link directly opens a PDF linked from wikipedia) http://www.microsemi.com/micnotes/701.pdf" is what I am looking at.

sounds like you need a multilayer semi conductor device like a http://en.wikipedia.org/wiki/TRIAC" . It can conduct for the positive or negative half cycles simply by firing the gate. Bias is the tendency for a diode to conduct better with the current flowing in one direction as opposed to...

Hi spid3rx, I have never used that multimeter and the manual is a 9MB download! could the multimeter be taking a little time to correct for lead resistance? How long does it take to drop? Does it drop to an eventual consistent result?

Perhaps this http://en.wikipedia.org/wiki/Stepper_motor" link will help?

For my project I used a rat trap ballista (so called catapult) To get the energy Iwas suposed to use Mohr's circle because of the orientation of the spring. But you should be able to use the energy version of http://en.wikipedia.org/wiki/Hooke%27s_law" law. The way I cheated my lecturer was to...

Just had a look http://en.wikipedia.org/wiki/Gravitational_time_dilation" . There is something of a resemblance but I don't appear to be right. However there must be something to be learned from this.

The whole reason for my self study is in order to relearn SR and learn GR in an initial manner. The notation conventions and clear thinking were an issue so I turned back to classical mechanics. I have gotten distracted from this agenda on another forum and have been looking again at SR. I have...

Put a heater ribbon around the pipe and lag. These ribbons come with a controller etc so you don't vapourise

Understood progressing well for now... Thank you.

I am now up to pp 20 of Chow's book. I am puzzled as the text states for cylindrical coordinates that \hat r =p\hat e_p +z\hat e_z . But I thought that any 3D coordinate system needed three dimensions. Should the above have been \hat r =p\hat e_p +z\hat e_z+\phi e_...