He talks about the fact that gears should lock up if in a triangular dependency on each other. However none of those gears are. The positions where each gear drives another is spread apart across the vertical axis, thus there is no dependency and no deadlock.
That's part of the story, but it's not the whole story. The key here is that what looks like a three-gear system is actually, in effect, a six-gear system.
The top half and bottom half of each of those "gears" are rotating in opposite directions (in the appropriate 3-D sense), and thus each one behaves as if it were two gears.
Your point is sufficient to explain why there's no deadlock when you just look at the top or bottom part of the whole thing, as those halves aren't all connected together.
EDIT: nope, I'm wrong, and so are you. The case where the two elements end up turning in the same direction is pretty clear-cut.
In principle, the argument as to why a three-gear system should lock up is a simple parity argument. Two gears that drive one another must spin in opposite directions; if you go from 1->2->3->1 you've swapped parity three times so 1 must spin in the opposite direction to 1, and thus cannot spin at all.
However, those gears of his clearly violate the assumption that two gears that drive one another spin in opposite directions, and so the whole argument as to why there should be a deadlock falls apart in the first place.
My "six gear" workaround could, in principle, have a similar result, but it would require the top half of one of those gears to drive the bottom half of another.
This is a real improvement on the Wankel engine design! Which solves the sealing and fuel consumption problems. By swapping the rotor and stator (housing) of the original Wankel. Check the animation!
Saw a truck on fire on the way home from the store today. Looked like everyone made it out. For the first time in my life I decided "hey let me film this random event and put it on the intertubes" So now, as the great MC Ride says:
Never last when we load trash We upload trash Face down, trash begets trash
In which SwiftonSecurity demonstrates that an app that many major media outlets have been promoting is absolute bullshit. Read the whole thread, it's amazing.
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The internet is doing things to the Queen's green outfit!
I love it when an honest mistake still yields beneficial results.
The top half and bottom half of each of those "gears" are rotating in opposite directions (in the appropriate 3-D sense), and thus each one behaves as if it were two gears.
Your point is sufficient to explain why there's no deadlock when you just look at the top or bottom part of the whole thing, as those halves aren't all connected together.
EDIT: nope, I'm wrong, and so are you. The case where the two elements end up turning in the same direction is pretty clear-cut.
In principle, the argument as to why a three-gear system should lock up is a simple parity argument. Two gears that drive one another must spin in opposite directions; if you go from 1->2->3->1 you've swapped parity three times so 1 must spin in the opposite direction to 1, and thus cannot spin at all.
However, those gears of his clearly violate the assumption that two gears that drive one another spin in opposite directions, and so the whole argument as to why there should be a deadlock falls apart in the first place.
My "six gear" workaround could, in principle, have a similar result, but it would require the top half of one of those gears to drive the bottom half of another.
http://spectrum.ieee.org/cars-that-think/transportation/advanced-cars/liquidpiston-unveils-tiny-but-powerful-engine
I would love to run one in an ultralight aircraft.
Trump has the Otaku vote.
Ian McKellan being interviewed and wasting his theatrical talents on anime.
Never last when we load trash
We upload trash
Face down, trash begets trash
Today I learned that Indian soap operas love dramatic effects.
They like it Quite a bit.
Edit: But oh goodness does that neck add-on make it frightening.
0:49 is the best part.