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It depends on how you mean it. If one is holding a laser and light is shining on it, then of course it can be seen. But I assume you are talking about a laser beam.
For the spot where the beam hits some object, yes the illuminated spot is visible. A vacuum has no real effect on light. A vacuum environment is just an environment that has had all the air (and other material) sucked out of it (and thus all objects regardless of shape and size fall at the same speed, but one digresses) but this vacuum has little effect on light.
On the other hand, if you're talking about seeing the beam itself then the answer is no. Light travels in a straight line unless it's path is effected by some matter. If a laser projects its light in any direction except directly at your eye, none of the light will enter your eye unless something causes its path to change. In air, there is usually some dust, smoke, mist, or some such stuff that scatters a small fraction of the laser light and allows you to see the beam. Even in perfectly clean air, the air itself scatters a very small fraction of the light, so a bright enough beam can be seen. But in a vacuum, there is no material to divert any of the light toward your eye, so you can not see it at all.
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What is the difference between smart lipo and regular lipo?
In traditional liposuction, body fat is removed with a needle and vacuum that is put under the skin without the use of a laser. Smart Liposuction uses as laser to break down the fat deposits.
What would life be like without the laser?
life would be very complicated without the laser we would have to store our information on paper and in files, we would have to look through possibly thousands of files just to find one piece of information, without the laser we would still live in what i would classify as the "old days"
What is another name for a vacuum bottle?
Another word for a vacuum bottle would be flasken.
If Torricelli had drilled a little hole at the top of a glass tube holding his mercury column what would have happened to his barometer?
He would not have had a barometer. He would have had a glass tube stuck into a bowl of Mercury, with nothing in it. Because once the hole was made the vacuum would be gone and the mercury would fall back down to the bowl.It takes the vacuum in the tube to create a barometer.
What equipment would you use to measure a field?
Tape measures or laser range-finders would do that.
Is diode LASER visible?
LASER diodes operate at either infrared or visible wavelengths, depending on its construction.
Is vaccuum visible?
A vacuum is not visible, as it is an absence of matter. Matter must exist to be seen, and so a vacuum cannot be seen.
How do you clean a laser printer?
HEPA filter ESD safe vacuum
How do commercial Laser tag or skirmish systems emit clearly visible beams in broad daylight?
There are some special sprays that can be used to make laser beams visible for the naked eye. The particles from the spray gather around the light particles and make them visible.
Will electricity make a visible arc in a vacuum?
Not in a complete vacuum, you need some molecules present to be stimulated
What travels more quickly visible light or microwaves?
They are both forms of electromagnetic radiation and, in a vacuum, would travel at the same speed.
Would you aim a beam of red laser above below or directly at the visible Space Station that is located above the atmosphere and just above the Earth's horizon and what happen if it is green laser?
I would not aim a laser at, above, or below a spacecraft or aircraft. It could cause a navigation hazard or possibly injure a pilot or astronaut. If your laser is powerful enough to be seen by personnel aboard the space station, I hope you have licensed it in acordance with law. A green laser is more visible to the eye. If you do this and it is detected, it will be a simple matter to find you. They can see what you are eating for lunch from up there and such a prank will not be appreciated. Just don't do it.
What is the best visible laser to use that's safe to touch?
You can take a normal laser pointer and point it at smoke, dust, fog, steam, etc. and the laser will appear. The normal old laser is now safe to "touch".
Why does laser light visible in smoke?
yes,you should be able to...i think why dont you test it?
Do photocopiers create ozone?
Yes. So do laser printers, vacuum cleaners, and more.
Which type of light does the electromagnetic spectrum NOT contain?
visible light
How to turn your cheap laser pointer into a fully visible cutting laser?
You can't. Most of the mods you find online won't work or will only work for a couple seconds before your laser diode burns out. If you want a laser that will really cut through things, I would recommend finding a tutorial for building one with a DVD burner diode. If you want to learn more about lasers and building them, I would recommend laserpointerforums.com.
