[NSRCA-discussion] Snaps

[John Pavlick]

 Easy. Elevator, rudder, aileron. In that order. Works in both directions
(left AND right). It even works inverted but you apply opposite aileron /
rudder. The whole thing takes about 1 second. That's the problem. Your eyes
are "blind" when they're moving. That's another problem. How much of it do
we really see?
 Here's something to think about. Have you ever looked at an LED display -
like an alarm clock or something like that. Does it look like the LEDs are
"On" constantly? They're not. OK, in some designs they are but most of the
time they are multiplexed. There are 7 segments in a display. The number "8"
requires all of them to be illuminated at the same time. The micro that
drives them does not turn each one on at the same time. It turns each one on
for a certain period of time, then the next one, then the next one. In spite
of this, your eyes "see" them all on at the same time. This is due to the
persistence of the display and the fact that your eyes and brain aren't as
fast as you think they are. Now for some fun. Eat some D'Oritos (or any hard
crunchy food - this makes your eyes "blind" for a short period of time) and
look at the same display. See what I mean? The same is true for a CRT
display (the one on your PC). If the refresh rate is low enough, you'll see
some weird stuff if you eat D'Oritos and look at the display.

John Pavlick
http://www.idseng.com



  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of R. LIPRIE
  Sent: Saturday, July 08, 2006 11:48 PM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] Snaps


  Nat,'

              I agree with what you said, all the way. And it actually
helped me understand a little bit more. About the substance of snap rolls.
But there still is a very big controversy over the (millions of ways) to do
a snap roll. But maybe one day everybody will agree on one particular way.
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