How Lasers Work (in practice) – Smarter Every Day 33


How Lasers Work (in practice) – Smarter Every Day 33

Click to see the Minute Physics take on Lasers:
Click to post this video to your FB
Johan has a website! He makes lasers! :

The custom music was created by “A Shell In The Pit”.
Support the artist by going and downloading this and many more of his songs.
The names of the song used is “The Bear”
Download some of his music to jam to here:

Instead of saving for my kids’ college, I make videos using the money I would have saved.
The thought is it will help educate the world as a whole, and one day generate enough revenue to pay for their education. Until then if you appreciate what you’ve learned in this video and the effort that went in to it, please share the video. If you REALLY liked it, feel free to pitch a few dollars towards their college fund by clicking here:

Warm Regards,




  1. I'd like to see what's involved in calibrating those mirrors. I imagine it isn't easy to aim a laser at a laser with perfect precision.

  2. If you please, my name is Robert. I'm extremely interested in building a 1000 W cleaning laser even if it takes a huge trailer generator to operate, I'm extremely interested in figuring out how to build it myself. I've seen of lot of lasers that people build online mainly YouTube, but I would love if someone could help me or at least walk me through the beginning stages of building a laser strong enough to peel the paint off of metal. I would like to clean statues for museums and churches that would not hurt the statue but clean all of the decay off. Please email me and let me know if you have any insight, I really enjoyed the video on lasers with your American friend. My heritage is Dutch and some from Norway and England but I think everybody has a little bit of everything in them. My email is
    Thank you

  3. I work for a company who makes some of the equipment used in this video. So nice to see it in use. I'm lucky enough to have a job that requires me to use the equipment in our lab, but it's not quite the same as seeing a real world experiment using it.


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