Inverter

And this is actually called a commutator, where this part that's connected to our rotating piece, that's the commutator.

You didn't have to use the commutator.

A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves.

So now using the commutator, we have essentially created an electric motor.

Or another option, you don't have to use a commutator.

A shot, a broken telescope, a Cobra dead

It has a periscope telescope

Now we assume that the commutator has gotten back in touch.

The second shot did not cross the telescope

Remember, before we had this commutator and everything, if we just flipped it over, the current, because before when we didn't have the commutator, the current here was flowing down here, up here.

And before the commutator, we had the current flowing down here and up here.

This is the Allen Telescope Array electronics today.

Space Telescope.

And with a more powerful telescope, you'll be able to see stars, and planets.

largest telescope that ever was!

Before the light bulb was invented, people had figured out how to put a reflector behind it, focus it a little bit put lenses in front of it, focus it a little bit better.

And I said ideally maybe your commutator loses touch with the brushes at this point, right?

The future telescope CTA will help to answer this question.

The galaxies were photographed in 2002 by the Hubble Space Telescope.

Could you image if we looked through the Hubble Telescope and we saw that?

I used the telescope approximately 1 mil dot

When you have a telescope, and everyone is thinking of an eyepoint

And it was with Gout Sniper Dayscope instead of a telescope unfocused it difficult to use the night, so

Let's try again with a telescope (red dot) new and better

It's when part of the intestine folds into another part, sort of like a collapsible telescope.

The first telescopic observation of Mars was by Galileo Galilei in 1610.

With the Hubble Space Telescope, we're looking at hundreds of millions of years to a billion years.

But this is a five meter telescope has about a quarter mile focal length.

It would take several thousand years until the industrious Dutch made the first telescopes and astronomy became much more interesting.

Dmitri Maksutov built a prototype for a similar type of meniscus telescope, the Maksutov telescope, in October 1941 and patented it in November of that same year.

The software maps out and labels most of the constellations, planets, and objects you can see with a telescope.

And the thing I want you to look at here is the telescope on the right hand side.

Oh, by the way did David get you the telescope scale you asked for last week

So those brushes on your bumper cars might not be all that different from the brushes that are touching the commutators here.

The next night, the fading object, by now down to magnitude 20, was imaged by the Keck telescope, and the 2.6 meter Nordic Optical Telescope in the Canary Islands.

The one way to discover about aliens is to tune your radio telescope and listen to the signals.

This is the Allen Telescope Array, about 350 miles from whatever seat you're in right now.

It'll be, in a sense, like having time on a telescope, except you'll have your own port.

Before the light bulb was invented, people had figured out how to put a reflector behind it, focus it a little bit put lenses in front of it, focus it a little bit better.

I've hidden data from the newest planet hunting space telescope on the block, the Kepler Mission.

While it's Kepler the telescope, the instrument that stares, it's we, life, who are searching.

So melanin was recruited, in our lineage, and specifically in our earliest ancestors evolving in Africa, to be a natural sunscreen.

This enables anyone to control a telescope a large distance away in a dark location.

In the first shot, Reichert hit the side of the space telescope not crossed some fragments of the projectile inside the bullet stopped inside the telescope