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

Where's the propellers?

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

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.

In fact, just studying the rings alone, we stand to learn a lot about the discs of stars and gas that we call the spiral galaxies.

In these galaxies, especially in a spiral galaxy like this, most of the mass of the stars is concentrated in the middle of the galaxy.

My spine curves spiral.

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

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

Your monkey wrench, Mr. Newton.

And here's a beautiful picture of the Andromeda Nebula, which is our closest, largest spiral galaxy to the Milky Way.

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

This is DNA in its classic double helix form.

The spiral thread we call a solo hot spot.

She carries a mean spiral notebook and a pen.

I never should've taken the freighter. Should've gone by clipper.

Yes, it must be a flying machine. It's got, um, propellers.