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.

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

It's just that, whereas that device relies on pulses of infrared light, your language relies on pulses, discrete pulses, of sound.

So this creates pulses of light that last a femtosecond.

In this example, each electrical impulse, each deflection on the trace, is caused by a brief pulse of light.

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.

It would be all atoms pulsating in unison, emitting light of one color, one frequency.

Thus, the conditions for observing the important oxygen hydrogen maser line at that frequency would rapidly improve.

These had the aim of studying auroral pulsation and making ozone measurements.

Pulsar

The bandwidth could be further extended by frequency doubling and optical multichannel oscillators.

With recent advances in the development of new materials and improvements in the lifetime, frequency stability and reliability of lasers to be used in space, the development of spaceborne laser systems was approaching its operational stage.

Within this band are gamma ray pulsars and other unidentified sources of gamma rays.

Two additional laser frequencies were derived by a Raman tube and returns successfully detected from a representative selection of satellites (including LAGEOS).

Impulse

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.

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.

Discoveries have been made of new pulsating stars, including members of rare classes, and a new class of pulsating F type star has been established.

This next video clip, you're going to see how we stimulated the bioluminescence.

Using a unique technique for concentrating the solar light, splitting the spectrum to various spectral bands, and using each band for direct optical pumping of different lasers near their emission band resulted in an overall efficiency of 20 per cent.

This is a pulse of light that's only about one wavelength of light long, so it's a whole bunch of photons all coming and hitting simultaneously.

And finally he says, OK, now I'm going to all of the aura get erased with an appropriately placed magnetic pulse.

The aim of the campaign was to study auroral pulsation, and it was a follow up of a similar campaign in 1980.

Measurement tool for Impulse Responses

Brains only detect nerve impulses.

(l) Produce a disruptive electromagnetic pulse

Band

Frequency

Frequency

Frequency

We have been mountains and apples and pulsars and other people's knees.

Laser

CPU Frequency

CPU Architecture

The most fabulous showplace west of the Rockies.

Laser

Lasers

Frequency of meetings

Audio bit rate

Audio track to play

Launch frequency

Zoom frequency

Clock Frequency

Sample Rate

Update frequency