Recent content by Reed

1. Chromatic Aberration

I'm not sure on an exact measurement, but I wouldn't call it negligible. If it were, camera lens manufacturers wouldn't employ the use of aspherical elements and low-dispersion glass.
2. School me.

Yeah, the more I think about it, the more it makes sense. Good formula. I don't know why nobody taught me in high school. Anyways, sorry if "school me" sounded rude or anything. Just trying to keep a sense of humor in everything I do.
3. School me.

Four sides. a = 6 b = 14 c = 9 d = 17 My rounded solutions output angle values of 117.45, 88.92, 78.57, and 75.03 That's exactly what I was looking for. Now time to apply it to some useful things. :) Thanks a lot, guys
4. School me.

Doh! Got a mistyped formula from a crappy website. Mathworld shows that b AND c are multiplied with the cosine, which makes a lot more sense. Off to do some math (I mean work) again.
5. School me.

Say I have a triangle whose sides measure 17in, 16.5in, and 6in. a=17 b=16.5 c=6 A=x 17^2 = 16.5^2 + 6^2 - 2(16.5)Cos X 289 = 272.25 + 36 - 33(Cos X) -33(Cos X) = -19.25 Cos X = .583 X = 54.3 degrees? I'm sure I'm making some gay mistake here... Doing it that way would...
6. School me.

Do the sine, cosine, and tangent functions not apply only to right triangles?
7. School me.

I want to do some math for 4-link suspension, and I soon realized I don't know crap. Say I take measurements of the lengths of the four connecting rods and one angle measurement. How do I find the values of the other three angles?
8. Cars: Weight Transfer

As I've learned from the "Physics of Racing" series by Brian Beckman, weight transfer of a car during braking can be determined by the acceleration, height of the car's center of gravity, length of the car's wheelbase, and weight of the entire car. Now I realize that changing the spring rates...