This is DNA in its classic double helix form.

There's a gyroscope in it.

Helix

The Spiral

Spiral

Spiral1

Spiral2

Complex number

Spiral number

Helix

Spiral

Squiral

Monkey wrench? Oh.

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

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.

Draws a set of interacting, square spiral producing automata. The spirals grow outward until they hit something, then they go around it. Written by Jeff Epler 1999.

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.

That's nothing new that's a propeller clock that's the rims that you can buy for your car.

Your monkey wrench, Mr. Newton.

If this plane is imaginary, then so are those engines and so are those props.

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

And the wonderful thing about the new bookstore is, it's going to be shaped in a spiral that's organized by the Dewey Decimal System.

So these are helicopters with four rotors and they're roughly a meter or so in scale and weigh several pounds.

Alexander Rose came up with this idea of a spiraloid tower with continuous sloping ramps.