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

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.

Next we can actually light them up with a laser.

The red dot is the laser light of the submarine Alvin to give us an idea about how far away we are from the vents.

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

It measures the absorption of light in a sample The neat thing about this is, you have light source that flickers on and off at about 1,000 hertz, another light source that detects that light at 1,000 hertz, and so you can run this system in broad daylight.

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

And then the laser actually cuts.

This is our femtosecond laser lab.

Nathan Myhrvold Could this laser zap malaria?

I'm checking for laser beam alarm triggers.

And what I'd like to tell you is we don't see shadow, and we don't see light too we see the source of the light.

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

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.

I have solidified the beam of the laser pointer.

And I was writing software to visualize laser scanners.

The parents love it, because when they open up the laptops, it's the brightest light source in the house.

Your Blu ray player has a very cheap blue 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.

Their torch is meant not to light the way, but to inflame the hatreds that are their only source of power.

More recently, at Einstein University, they just determined that fungi use radiation as a source of energy, much like plants use light.

With no natural light source, Siva is one of these amazing places that when you look up you see a perfect tapestry.

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

And the fun part and I'm quite focused on it I tell people I used to be a light bulb, but now I'm a laser I'm just going to get that thing built, and it turns out it's not so hard.

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

Instead of one point in the brain, we can devise devices that span the brain, that can deliver light into three dimensional patterns arrays of optical fibers, each coupled to its own independent miniature light source.

Powered by the symbology of a myth and the passion of my training, I brought laser sharp focus into my dance, laser sharp focus to such an extent that I danced a few weeks after surgery.

There is a phallus, clear acrylic phallus, with a camera and a light source, attached to a motor that is kind of going like this.

I have transformed the laser beam into an ecological, recyclable version here, in green India.

Mobile speed laser cameras have also been introduced to enhance detection of those who speed.

And it would be self illuminated, because now the Sun's gone, we have no other source of light so let's make our little Earth self illuminated.

It's actually using a laser to fuse the new layer of material to the old layer.

We used a bit of laser cutting on the plywood and some of the aluminum pieces.

And it's spacial modulation these are the only technical terms, I'm not going into details but this is how we enabled that light source to transmit data.

And you enter that space, and you feel like, Wow! This is so impressive, just because of this focal point, this huge light source in the middle.

At 200 dots per inch, it's kind of the equivalent of a 300 dot print laser printer.

And the cutting path that the laser followed goes from here to the airport and back again.

This is the last picture that I want to now we've got to use the laser pointer.

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

And what we've done is that we've turned the bullet into a light source, so that bullet is actually shining, and it makes it really easy to find these fragments.

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

Could you put your hand up if you wear glasses or contact lenses, or you've had laser refractive surgery?