Recent content by Riemann Metric

You can use either, but if you want to measure angular velocity, you need a range finder built into the motion tracker. If you are using something on a car, for example, a simple accelerometer should suffice.

Well, the meter above would work, but I'm trying to avoid high cost, so I just made a simple light-bulb based meter and all the locations I tested were non conductive entirely.

Your best approach is to use acceleration equals 9.81 meters per second per second. From there, you can integrate your equation until you get a velocity equation and finally the displacement equation. All you need to know is acceleration and once you integrate using initial velocity as zero (or...

See, it's the giant cost that I'm trying to avoid, while making something practical. Neither spending $350 or waiting and measuring gas created is going to be very practical for multiple testing occasions for a simple project. Neither is measuring current going to help much. If it helps, the...

Sanctuary wasn't too bad, but I'd have to draw the line and say it was more of fantasy than actual science fiction...

Hi, I am trying to build a conductivity meter as part of a school project (I have to measure the conductivity, among other things, of local water systems). Unfortunately, I cannot buy one for this project, as it should be home-made for these purposes. If I wanted to create a meter that...

Simply put, electrical energy is converted into mechanical energy and potential energy through the motion of pulling the coaster up to the first hill, or to accelerate it through the first segment. Keep in mind that the only point KE=0 is when the passengers are getting in, for even at the top...

Well, who knows...maybe something that seems unorthodox like Project Orion could inspire something that really does work. As it is said, necessity is the mother of invention, and I fear our efforts towards something we think we don't need will be rather negligible until our views change.

Drumming's right-especially in the case where building something, like for a science fair or robotics competition and such can win you prize money or scholarships, plus the college recognition for such efforts.

SG-1 was just plain awesome: longest-running North American sci-fi series ever! I wish they'd done Universe better, though, since that could have gone on as long as SG-1 did, with all the new things they could have added...

No problem-glad to help.

Probably would have been a good idea to take calculus in high school-maybe take precalc online in the summer and do calc senior year? You shouldn't have too much of a problem getting into universities, as long as you keep your grades up, I guess.

Yes, you could put the fraction anywhere that it's needed: remember, when you balance equations, all you need to do is make sure that the individual components of the molecules (the elements) all add up. The fraction can go on either side to make sure that the equation is balanced, but usually...

You have to consider...much of what all of your points are actually appeals to the American public, but that's people for you. I'd suggest reading the novels if the show is too much for you, since I found them much more sophisticated if you really take a look at all the complex plots and...

My mom watched this show a lot, and I must say it is part of what got me into not just physics but science in general. Awesome series.