When the frequency goes up, the wavelength comes down.

So, if we have a wave here over here, that's what's interesting as the pitch goes up, things get closer, pitch goes down, things stretch out.

Frequency

And all of you know the wave equation is the frequency times the wavelength of any wave ... is a constant.

Set it up to around A, above A, above A. There's an A, more or less.

Frequency Channel

Clock Frequency

Otherwise, you may find this module a little difficult to follow.

It's a color sensor that detects the color frequency in front of me (Frequency sounds) and sends this frequency to a chip installed at the back of my head, and I hear the color in front of me through the bone, through bone conduction.

So, in order to measure the speed of sound, all I've got to do is know its frequency.

You might have heard that light is a kind of wave and that the color of an object is related to the frequency of light waves it reflects.

Frequency of the channel

So this is the sound of the O H stretch, translated into the audible range.

And if you can cause that coil to resonate, what will happen is it will pulse at alternating current frequencies at a fairly high frequency, by the way.

When you think about it, this is pretty weird.

So, in this yellow looking region, two different kinds of light waves are present one with a red frequency, and one with a green frequency.

Don't move anything. Keep it on the frequency they had it on.

(Higher frequency)

The green and red bars show that same signal displayed by frequency, with lower frequencies here and higher frequencies up here.

He's on every frequency.

Can Change Frequency

Now a laser is different.

OK, let's go back to Mr. Elmo.

So, let's fire it up and see what it does. So let's play a 550 herz frequency and watch what happens.

That frequency triggers the explosion.

Picked a lightning bug off the drum. Running at two kilocycles.

Now think about it. This is an amazing thing

Value of the cutoff frequency for the lowpass filter

Value of the cutoff frequency for the highpass filter

We've got a problem with the antenna ringing.

Starfleet frequency 79Baker.

Frequencies please, sir.

No, it's ultrasonic, so you wouldn't be able to hear it. The frequency's too high.

So enough about bobbing corks... what about light and color?

The sound frequency triggers the explosion.

Now desktop computers at the time didn't have that much power, in fact, they didn't have any of that specialty hardware at all.

If you know how many seconds one full wave takes, then it's easy to work out how many waves go by in one second.

Though I am trying to jam all frequencies coming from the suv,

Shift to Command frequency.

We posited A spectrum of waves lying outside of the range Of those already discovered.

Using a scanner, they found our video frequencies.

I'll describe a couple strategies.

You see, my mind is like a radio set.

Here's the first example.

(Laughter)