It's about a tenth of a millimeter,

Bacteria are just tiny cells, harmless.

And now we know that there are hundreds of other sorts of cells, which can be very, very specific.

Another example is if you think about antibiotics and bacteria.

First of all, let me say, we've come a long, long way.

There's a class of cells, a fairly small cell, an inhibitory cell, that quiets its neighbors.

And I'll do it in magenta.

Now we know that a root apex has just a few hundred cells that show this kind of feature, but we know how big the root apparatus of a small plant, like a plant of rye.

So this fraction, the numerator here is less than the denominator.

The human body is composed of billions of small cells.

Do one thing for another human being.

Or this is a bacteria and these things are so much smaller.

And what you could use it for is just limited by your imagination.

It doesn't change it quite enough, but that protein acts just a little bit different.

So as I mentioned, there are 86 billion neurons.

When I was a child, I had one as a pet.

And they are so critical to your lives because it is the tiny mitochondria in each of our cells that will manage the energy supply for that cell.

Then you start to take a look at adult life.

So let's start at the tip of the pyramid, with something so small, it can't be seen by the human eye, a single cell.

And since this is a Stanford level class, you will find out that some of the quizzes are actually really hard.

He is a fighter,your little john.

Mesh geometry itself can be thought of in the same terms.

Here's what I'm going to do. I'm going to grab a random coin with 50 chance.

So clearly there is some effect.

this is really something that I have trouble imagining is that atoms are unbelievably small.

When it's alone it doesn't make any light.

But here, I got a number that's positive, because five hundred thirty six is less than five hundred ninety seven.

Prince wrote a great song Little Red Corvette.

Շատ լավ է քննարկումը սկսել բջջային թաղանթից հենց սրա շնորհից է բջիջը բաժանվում արտաքին աշխարհից, հիմնականում թաղանթն է նկարագրում բջիջը

This animal is the size of a paramecium and an amoeba, and it has a brain of 7,000 neurons that's so small you know these things called cell bodies you've been hearing about, where the nucleus of the neuron is?

And the size of the room is not that big.

Don't you have anything smaller than this?

From there, we're actually going to get into what we call arterioles.

Germs are too tiny for our eyes to see.

But if anyone has information about this shameful act,

For me, or for my purpose at this moment, there's still too much of an unfavorable tradeoff between scale, on the one hand, and resolution and speed, on the other.

Let's say this one goes towards my foot, and this is going to be now an even smaller artery.

And it's called that because it's basically got three little flaps.

Սա կորիզակ է կամ nucleole

And that's what I'm going to talk about, how a small change

Maybe louder?

So let's see what happens when delta x get smaller and smaller.

It is one 50,000th of the diameter of your hair and it is an atom thick.

Բայց դա թաղանթային սահման չէ

Little balls in wooden tracks are really susceptible to humidity and temperature and a little bit of dust, and they fall out of the tracks, the exact angles makes it hard to get right.