It's called the Dirac delta function.

So you're going to end up with your Dirac delta function.

Enrico Fermi ate alone.

Dirac delta function is zero.

Dirac delta function.

We say, hey, that's a Dirac delta function.

Fermi then went on with the same blunt logic to disprove fairies,

So Dirac delta of t minus c.

Well, it's going to be the value of the Dirac delta function.

Fermi then went on with the same blunt logic to disprove fairies, Sasquatch, God, the possibility of love and thereafter, as you know, Enrico Fermi ate alone.

Where is everybody? asked Fermi, and his colleagues had no answer.

Now, let's graph our Dirac delta function.

Fermi problems are named after the physicist Enrico Fermi, who's famous for making rapid order of magnitude estimations, or rapid estimations, with seemingly little available data.

Fermi worked on the Manhattan Project in developing the atomic bomb, and when it was tested at the Trinity site in 1945,

Well, this is the famous question asked by Enrico Fermi in 1950

like the Copernican principle, the Fermi paradox, the anthropic principle, the origin of life.

The other possibility (Laughter) is, perhaps, Enrico Fermi himself was an alien.

State media recently started releasing year end mass incident statistics.

The other possibility is, perhaps, Enrico Fermi himself was an alien.

Details of the anticipated costs should be provided.

Three. You're forgetting Skag.

Have we a count of prisoners?

And so this is what I meant by pseudoinfinity, because if I have 2 times the Dirac delta function, and if I'm taking the area under the curve of that, of 2 times the Dirac delta function t minus c dt, this should be equal to 2 times the area of just under the Dirac delta function 2 times from minus infinity to infinity of the delta function shifted by c dt, which is just 2 times we already showed you, I just said, by definition, this is 1, so this will be equal to 2.

Well, this is the famous question asked by Enrico Fermi in 1950

Anyway, in the next video, we'll continue with the Dirac delta function.

Whatever you put in front of them, they'll take statistics on.

And that ain't counting taters.

Things where you might trip across things like the Copernican Principle, the Fermi Paradox, the Anthropic Principle, the origin of life.

So let's say I have my Dirac delta function and I'm going to shift it.

It's going to be the Dirac delta function times whatever height this is.

And so in this example, a census scientist took out two ships.

I'll give you a count of three to change your mind.

Is Bedwin in the habit of counting the plate at night?

To resolve some problems within his relativistic equation, in 1930 Dirac developed a model of the vacuum as an infinite sea of particles having negative energy, which was dubbed the Dirac sea.

Let's say I wanted to graph 2 times the Dirac delta of t minus 2.

According to the 2004 census it has a population of 4,001.

So what did we find after computing all this network control?

So it's this constant times my Dirac delta function, times delta of t minus c.

For example, when t equals 3, this will become the Dirac delta of 0.

And what I'm going to do here is the Dirac delta function is going to be zero everywhere.

When t is equal to 2, you get the Dirac delta of zero, so that's where you would have your spike.

According to the 2004 census it has a population of 43,392.

In 2002 its population was 205,870.

According to the 1998 census it has a population of 12,577.

According to the 2004 census it has a population of 25,928.