Optical Illusion

The animated .gif shows two 8's, in front-view, that are placed above each other, and they both rotate in synchrony from left to right, as you can see in the upper top-frame-view they spin anti-clock-wise.
There is an interesting optical illusion noticeable when you look at the two from left -> right spinning 8's namely that after a few turns, seven or so, they suddenly appear to be spinning in the opposite directions from right -> left.

Dragon 8 Liftoff

Spinning tori pile up into a crawling dragon that eats its tail (ouroboros), the rotations of the tori are translated onto the whole 8-formation, and it lifts off in a straight line through the Aether.

Dragon becoming a Particle (Ouroboros)

Dragon biting its tail, and becoming a particle,
 by computer artist Rarebit Rob.

Leonardo Da Vinci

Leonardo Da Vinci ... Disciple of Experience ... ca 1490

Wire Canal (Tori)

Flexible wire canal made out of 1000 tori by Andy Moorer

Lift and Thrust (1st tryout in water)

A first tryout of the mechanical model in water. This clip is a compilation of 4 clips. Unfortunately the black tub isn't a good setting for visualization, and filming while handling the object at the same time didn't go very well either, so the quality is rather poor.

When switched on, the 'Spiraled Torus' spins around its center axis in a Counter Clock Wise (CCW) direction. When it was on the bottom it didn't lift. I had to pull it a bit and it started to move upwards. To set it back to the bottom, I had to apply some force, so it does generate thrust. Probably the space between the floor and the torus needs to be large enough so a current flow can be generated so the object can lift of the ground (see pic below) similarly to how swifts rarely land on the ground because their short feed, which makes it hard for them to take off.

In the last clip the direction of the current is changed and the object rotates Clock Wise (CW). When placed in the tub the construction moves towards the bottom, once pulled back up onto the surface, it rotated again downwards. 

3 Particle Proton

Let's say for that for a proton the snake-like trefoil knot is too far fetched. Than it still would be an interesting interaction canal system for a 3 particle interaction organism, with a top and two down quarks made up out of tori, and smaller tori moving in between serving as gluons. The whole mechanism would eject / emit 8-like positive charge particles that hook up electrons, along with much smaller gravity particles. Once an electron is captured, the mechanism is neutralized.

Eight figure ring

Matter vs. Anti-matter

If gravitation is caused by a spinning 8 knot (formed out of squashed together tori), that acts like a little screw 'swimming' away from its origin, and generating a downwards push, than all these gravitational 8-shaped particles would have the same rotational direction (blue). Rotating in the opposite direction (red) wouldn't give them a chance to lift themselves from their generating source, actually they would screw downwards into the mother particle(and perhaps cause damage). This idea would also results in the concept that the universe full of identical spinning particles who travel through the Aether (Vacuum) applying some gravitational force. It would also mean that Matter that spins in an opposite direction wouldn't got a long lifespan as it doesn't go with the flow, leading to the occlusion of Anti-matter in the Universe.