Mock Turtle wrote:
A while back a friend pointed out the overlap between people interested in astronomy, amateur radio, and trains. It's like if you have the nerve receptors for one of those, you have a good chance on getting hooked on one of the others.
Astronomy brings to mind space stuff which brings to mind NASA & that connects with that though I am in to trains but not as in to astronomy, NASA has pages about kites!
https://www.grc.nasa.gov/www/k-12/airplane/kitefor.htmlQuote:
This page shows a free body diagram of the kite. In a free body diagram, we draw a single object and all of the forces which act on that object. Forces are vectors having both a magnitude and a direction, so we draw each force as an arrow with the length proportional to the magnitude and the head of the arrow pointing in the direction of the force. An important property of vectors is that they can be broken down into perpendicular components, and we can develop scalar equations in each component direction.
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"There are a thousand things that can happen when you go light a rocket engine, and only one of them is good."
Tom Mueller of SpaceX, in Air and Space, Jan. 2011