So that rod, connected to the gearshift lever on the steering post, comes down here

That little gear there switches back and forth to change direction.

In the middle we have a motor, and we also have a gear in it, and we use the gear to transfer the circulation of the motor.

Gears

Gear size

Gearhead

A gearhead

A tiny cog in the great wheel of evolution.

Cube Gears

Gear in.

So, that's a finished gear.

Roads, cones and wheels.

Stop complaining and bring the gear over here.

Let's put the gear here.

Display gears inside the cube

Every one of these circles is a cog, a stack of cogs, and this thing is as big as a steam locomotive.

For most small wheeled robots, they use a method called differential steering where the left and right wheel turns the opposite direction.

Sorry, the gears look all alike.

And the gears work in water as well.

You're the most adorable cog I've ever seen.

He's merely a grain of sand in the wheels of our machine!

So let's talk about the memory. The memory is very like the memory of a computer today, except it was all made out of metal, stacks and stacks of cogs, 30 cogs high.

So, we have a motor here on the left, and it goes through a gear train.

ES Well, imagine that you have two gears of a watch, a big one and a small one.

Clean it up, Chief, and nail down the new gear.

You can do gears and nuts and bolts that you can buy at Whole Foods.

Clutch in, move gear, pedal down, clutch out, now all together.

(all) Clutch in, move gear, pedal down, clutch out.

And I've been a little too timid and a little shy to tell you about it.

Think of the satisfaction of being a small cog in the great wheel of humanity known as Lonesome Rhodes.

There are 12 pairs of 50 1 reductions, so that means that the final speed of that gear on the end is so slow that it would take two trillion years to turn once.

Present Windows

The world is a wheel.

After many years of bending gears with a pair of pliers, I made that tool, and then I made this other tool for sort of centering gears very quickly sort of developing my own little world of technology.

It's on the roof of the world.

The wheel is turning.

The front wheels rotate like this.

So starting from a three dimensional ping sound system, a vibrating vest, a click wheel with voice commands, a leg strip, even a shoe that applies pressure to the foot.

I can hardly tell you in front of Aunt Harriet.

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.

On land, life turned a corner. Jaws formed first teeth came later.

If I spin this pulley, the small one's going to spin much faster.

This is an acryclic sphere.

Sometimes I get to feel like a wheel