So in this picture you see that rotor four is spinning faster and rotor two is spinning slower.

And then finally, if you spin opposite pairs of rotors faster than the other pair, then the robot yaws about the vertical axis.

This is a merry go round invented by the company Roundabout, which pumps water as kids play. You know?

There's a gyroscope in it.

Helix

The Spiral

Spiral

Spiral1

Spiral2

Complex number

Spiral number

Helix

Spiral

Squiral

Monkey wrench? Oh.

Squiral

Toxic spirals

Helix 2

Helix 3

Helix 4

Handedness

Spiral Shape

Change spiral

A spiral shape

Curls on Green

Spiraling, spinning, and very, very fast splashes of color rush toward the screen. Written by Teemu Suutari 1998.

Where's the propellers?

If you spin these rotors at the same speed, the robot hovers.

Hexacopters and octocopters, with six and eight propellers, can provide redundancy, but quadrocopters are much more popular because they have the minimum number of fixed motor propeller pairs four.

So it has four rotors.

OK, so here, this is the book spiral.

It's a double helix.

Spiral In

Cockpit, propeller, engine.

Italy s Downward Spiral

A snail's shell is spiral in form.

My spine curves spiral.

You'll be familiar with the double helix of DNA.

By the spin of electrons and that you know, when we talk about electron spin we imagine some little ball of charge spinning.

Your monkey wrench, Mr. Newton.

Periodic attractors

Rotating around attractor

All stop valves with screwed spindles shall close by a clockwise motion of the handwheel.

All stop valves with a screwed spindle shall be closed by a clockwise motion of the handwheel.

So there's a strand that goes like this, goes along one helix and binds it jumps to another helix and comes back.