Female Voice Long range laser scanning by sending out a pulse that's a laser beam of light.

Now, this is a low powered laser, and we can actually pick up a wing beat frequency.

This is high frequency laser, and it's enough with a fraction of a second to destroy the retina completely.

So you can change the intensity, the frequency, the duration, the pulse shape of the ultrasound to create anything from an airbrush to a hammer.

And we're going to show you, instead of the kill laser, which will be a very brief, instantaneous pulse, we're going to have a green laser pointer that's going to stay on the mosquito for, actually, quite a long period of time otherwise, you can't see it very well.

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.

You could, if you're really smart, you could shine a nonlethal laser on the bug before you zap it, and you could listen to the wing beat frequency and you could measure the size.

Is his pulse regular?

The doctor felt my pulse.

So this robot is actually equipped with a camera and a laser rangefinder, laser scanner.

The Institute is a member of the International Laser Ranging Service (ILRS) and the European Laser Ranging Service.

The doctor is taking the patient's pulse.

And then the laser actually cuts.

This is our femtosecond laser lab.

The doctor thought the patient's pulse was rather rapid.

Nathan Myhrvold Could this laser zap malaria?

I'm checking for laser beam alarm triggers.

Now, I put the laser here, and now, when I deal the cards in the laser, I know where they are but yes?

So there is no physical force, just a magnetic pulse.

And we also use three laser range finders.

Your laser printer has a mirror galvanometer that's used to steer a laser beam very accurately that's what makes those little dots on the page.

It'll help my breathing. It'll do something for my pulse, maybe.

There's even mirrors today that can pick up your pulse rate.

I have solidified the beam of the laser pointer.

And I was writing software to visualize laser scanners.

They pulse through my organs and legs and burn up my ears.

First, I'm going to show you that this is a magnetic pulse.

What it does is it measures my hemoglobin, oxygen and pulse rate.

In a laser, what makes laser light so different from the light above my head here is that this light is incoherent many different colors and different frequencies, sort of like the way you clapped initially but if you were a laser, it would be rhythmic applause.

Your Blu ray player has a very cheap blue laser.

Next we can actually light them up with a laser.

The laser retroreflector is a passive optical device used as a target by ground based laser ranging stations in order to determine the accurate position of the satellite.1

E Spaceship noise SW Even if it doesn't have a laser?

E Laser noise SW Yeah, yeah. That was pretty funny, Einstein.

To change its state, by the way, takes two volts from a millisecond pulse.

We see the pulse and the seasonal activities that these animals are going on.

Now, so I know the frequency.

Audio IQ signal intermediate frequency receiver

S H, quite a different frequency.

This works with a laser sensor that's mounted on top of Rezero.

Hurricanes are measured according to three dimensions frequency, intensity, and duration. The frequency of hurricanes has not changed much, if at all.

This is a radio frequency ID system.

I've got a frequency counter right here.

In this case, the frequency is lower.

In this case, we can see a laser sintering machine developed by EOS.