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Robatoy[_2_] Robatoy[_2_] is offline
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Default Mechanical Aptitude Test

On Oct 23, 8:04 pm, (Doug Miller) wrote:
In article , Tom Veatch wrote:

missed the planetary gear direction, matching up the description
(reverse, reduction, etc.) with the gear pictures, and the fan blowing
on the fan.


The fan blowing on the fan is an ambiguous question. They're facing each
other, and spinning the "same" direction, in the sense that when viewed from
the side, they're both spinning down on the edge facing you (or up, depending
on which side you're on). But when each one is viewed from *its*own* front,
one is spinning clockwise, and the other counterclockwise.

So is that the same direction? Or the opposite direction?

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.


Both blades rotate in the same direction regardless of vantage point.
You stand behind one fan, and both blades turn clockwise. You stand
behind the other, both blades turn anti-clockwise. What on earth is so
hard about that, oh wise one?