What cool things can you do with a laser pointer?

One of the coolest things to do with a laser pointer light is to shine it through various glass surfaces and see how the light reflects and refracts. Some of my favorite subjects for this kind of fun are geometrically shaped crystals (just be careful that your eyes are protected), or a cool shaped drinking glass.

How far can a 5 mW laser go?

The diagram below shows the hazard distances for a 5 milliwatt “U.S. legal” green laser pointer with a 1 milliradian beam divergence: It is a potential eye hazard from the pointer to about 52 feet. It is a temporary flashblindness hazard from the pointer, out to about 260 feet.

Can you go blind from 5mw laser?

They won’t burn you. They won’t cause permanent eye damage. Of course, in a real-world incident, laser light entering the eye would likely last for less than one second, as people naturally look away from bright things and close their eyes, so there is no real danger of direct damage.

What can I do with lasers?

There are many applications for laser technology including the following:

• Laser Range Finding.
• Information Processing (DVDs and Blu-Ray)
• Bar Code Readers.
• Laser Surgery.
• Holographic Imaging.
• Laser Spectroscopy.
• Laser Material Processing.

Is 5mw laser safe for cats?

If you use a laser pointer while playing with your cat, follow these safety precautions: Use a low-wattage light, with a maximum power output of 5 milliwatts. Never shine the light directly into your cat’s eyes.

Is 5mW laser safe for cats?

What is the hottest laser color?

It is the mW (milliwatt) specifically and NOT the color which determines the burning and heat rating of any particular laser pointer. So, blue lasers at 445nm and typically over 1,000mW these days are the best suited for burning ability. Offering a high heat index as well as a great visibility to go with it.

How do you use a tin can as a laser pointer?

Get a tin can and cut off the end, cover it with a balloon or rubber gloves. Place a mirror on the rubber end of the cylinder and your laser pointer inside the can. Have another person speak through the tin can and see how the laser beam reacts to the sound on the mirror.

How powerful is a 5MW laser?

In a nutshell, 5mW lasers are very powerful and can cause severe damage if not handled properly. They could cause permanent damage to your eyes and burn certain materials. Make sure to use lasers responsibly! How Powerful is a 5mw Laser?

What can you do with a green laser pointer?

Aside from being useful for stargazing and analyzing microscopic organisms, you can do so many other cool science experiments using a laser pointer. One experiment you can do is shining a green laser pointer through olive oil where it will change its color to red.

Can you use a laser pointer to point at stars?

Bear in mind that the laser pointers you would use for presentations or playing with your pets are not powerful enough for star pointing. You would need a laser pointer (usually with a green beam) that can reach far enough into the sky and be visible in the night sky.