b3ta.com qotw
You are not logged in. Login or Signup
Home » Question of the Week » Your first cigarette » Post 134418 | Search
This is a question Your first cigarette

To be honest, inhaling the fumes from some burning leaves isn't the most natural thing in the world.
Tell us about the first time. Where, when, and who were you trying to show off to?

Or, if you've never tried a cigarette, tell us something interesting on the subject of smoking.

Personally, I've never ever smoked a cigarette. Lung damage from pneumonia put me off.

(, Wed 19 Mar 2008, 18:49)
Pages: Latest, 17, 16, 15, 14, 13, ... 1

« Go Back | See The Full Thread

Try this, then:
Development of the mathematical equations for the involute curve uses simple
trigonometry. We will develop the equations for 90º of one full involute. In other words,
we are un-wrapping the string 90º around the cylinder in a counterclockwise direction.
The circumference of a circle is defined by: c = 2 * p * r
One quarter (90º) of the circumference of a circle is then: c = p * r / 2

Using trigonometry, we find that:
xc = r * cos (ang) x = xc + ( s * sin (ang))
yc = r * sin (ang) y = yc – ( s * cos (ang))

This is what I'm currently doing at work. Wanna trade?
(, Thu 27 Mar 2008, 13:50, Reply)

« Go Back | See The Full Thread

Pages: Latest, 17, 16, 15, 14, 13, ... 1