In 1866, Auguste Mouchout used a parabolic trough to produce steam for the first solar steam engine.

It's impossible to tell for certain.

Cause of death incised wound to the throat.

And I can change my cut to see different parts.

like that, it's a parabola.

It's going to be a sideways parabola.

The Fourth Geneva Convention is absolutely clear with regard to the prohibition of such actions.

And actually, it will be a parabola.

So it's a sideways parabola.

But it's a parabola nonetheless.

So let's say that I have a parabola.

Those shapes are parabolas.

It's an upward opening parabola.

I wouldn't dream of getting rid of...

Million tonnes CO2 equivalents.

Which of these represents a parabola?

It pops and it turns into a parabola.

This is equivalent to dividing by 7.

There was a large incised wound to the right side of the neck.

This is the 1913 Trio performing one of my pieces at the Milwaukee Art Museum.

What business you want me to handle, what parts of town and what my cut is.

Million tonnes CO2 equivalents.

Pakistan would then be compelled to provide a matching response.

And let's see if this actually turns out to be a parabola.

That doesn't seem like it's a parabola right now.

let me draw a better parabola there.

So this curve will essentially just be a parabola, right?

It's an upward opening parabola, so it looks something like this.

So if you took this equation, and if I told you to graph it, you would indeed get a parabola, kind of a downward opening parabola that looks something like that.

The requirements are offset by a corresponding amount under supplies.

And how do I know it's a parabola?

It's an upward opening parabola, because this is a positive number.

Or another hyperbola could be on, you could kind of call it a vertical hyperbola.

It's a parabolic Scheffler solar cooker.

The vertex is there, and this is a downward opening parabola.

This piece is equal to this piece they are all pieces are equivalent

Or if you have a parabola like, x is equal to y squared.

I mean, it is a parabola, with the vertex at 0, or its minimum point.

Now, the interesting thing to do is let's say I have a parabola.

And then, we want to find the focus or the directrix of a parabola like this.

And then, you could shift it around and then you can even have a parabola that goes like this.

And that's one of the ways that people define a parabola.

No, which of the following represents a parabola, they want to know.

And we got this equation, which we said, hey, that's a parabola.

This is the first ever such experiment, sort of the optical equivalent of Galvani's.