It's called the Norden Mark 15 bombsight.

They have given me a liver buenísimo.

And the game is very simple.

She said, Oh it's wonderful. How did you do that?

The lever on your left is the chair controller.

Please push up the lever.

They are particulary potent at supporting your mitochondria.

I press the first lever and the rats move into the front compartment.

Sure. What's the trouble?

Do you remember, I gave you those filters at the beginning.

He has the wagon out on the road.

I press the second and the door of the cage will slide up.

He came over and looked at it.

But no more stupid than what?

(Laughter)

Again, the key innovation of this technology is that when he wants to go fast, he just grabs the levers near the pivots and goes through a big angle every stroke, and as the going gets tougher, he just slides his hands up the levers, creates more torque, and kind of bench presses his way out of trouble through the rough terrain.

You can adjust the seat height by moving the adjustment lever up.

Another is reducing.

There's chocolate and peppermint and also spinach, liver and tripe.

So my idea was that, instead of sitting down and reaching for a lot of controls, that you would sit on the chair, and it would automatically balance your weight against the force required to recline.

The data here would just consist of for each star, a list of all the different emission frequencies of light coming to earth.

So seeing this in practice, this is the Leveraged Freedom Chair that, after a few years of development, we're now going into production with, and this is a full time wheelchair user he's paralyzed in Guatemala, and you see he's able to traverse pretty rough terrain.

Anyone going up, pull down on the lever

As it turns out, this device kind of comes in handy, because I don't have to have the fine motor skills to do, that I can operate slides, which is more of a mental process.

But wait, she wants to try flying' the plane. Yeah, just move the stick right there. Yeah.

And that moment of inspiration, that key invention moment, was when I was sitting in front of my design notebook and I started thinking about somebody grabbing a lever, and if they grab near the end of the lever, they can get an effectively long lever and produce a lot of torque as they push back and forth, and effectively get a low gear.

So half of the customers are going to go from high choice, 56 car colors, to low choice, four gearshifts.

Now the big, important point here is that the person is the complex machine in this system.

The other half of the customers are going to go from low choice, four gearshifts, to 56 car colors, high choice.

So as is the case with simple solutions, oftentimes the answer is right in front of your face, and for us it was levers.

And as they slide their hand down the lever, they can push with a smaller effective lever length, but push through a bigger angle every stroke, which makes a faster rotational speed, and gives you an effective high gear.

And that's because we tend to think of skeletons as stiff lever systems that produce speed or power.

But for the child, it is equally epic because that child, that boy or girl now has a super power.

look at the parts we have available and mix and match them to figure out what sort of gear trains we can use, and then look at the power and force you can get out of your upper body to analyze how fast you should be able to go in this chair as you put your arms up and down the levers.

It's also about 40 percent more efficient than a regular wheelchair, and because of the mechanical advantage you get from the levers, you can produce 50 percent higher torque and really muscle your way through the really, really rough terrain.

So I have a rat who is trained to press a lever to get a release of food when certain conditions are met.

the other major experience, the other major input which unlike simple labor stand here turning this lever all day long is not something that's the same or fungible among people.