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

How many milliwatts is this laser?

Dustin why are you wearing blue saftey glasses ?

It’s nice seeing this video again. I used a similar looking laser in community college a few years back to observe how different apertures affect the patterns that light forms on a wall from a known distance.

Thanks, I finaly figured out how this works.

This is Nikola Tesla theory by 369. Amplify

Well that was as clear as mud

thanks destin, made my day! <3

WAT IT KINDA FAKE

Hey a cool video idea, so about a month ago I had my dad shine my 500mw green laser into the sky at night as I walked to the other side of the house to see if you can see the beam from the side and as I looked up it looks like they are shining the laser tilted towards you because I had no point of reference and because it shined miles into the air

He still has that silly laugh even years after

Look at that dude! Little did he know, one day he'll enter a submarine and make videos in there

lol

Can we get electricity if we direct laser on solar panels

Lasers are as old as the pyramids did u know? 😱

No.. SyroPyro is a laser expert.. this guy is just a PG version..:) (no offence to your guest)

such a good way to begin my day with this video!

#33

Dit is zo ziek ouwe

Thanks for the video... Exellent...

Can this laser emit x-rays ? i am trying to build one, but i am scared that this might happen since they work with high voltage and vacuum ?

I prefer bacon torpedoes.

Learn some Dutch😄

cringey beyond belief btw

StarWolf Watched this.

Plot twist: the guy in the red jumper is actually an 👽; the posture, language & the tech he's involved in tells it all.😂

but why to throw away the 98% of the beam? Suppose you can open/close one of the laser aperture as fast as you can, won't you get the full 100% power out?

You must have understood what he said in Dutch very impressive.

Dude, in every video he is in a different place.

👍

Johan? Naoki Urasawa's "Monster?"

Hello my friends , my name is Leonidas, I am from Brazil, I have been reading and studying about co2 laser tubes for a year, I have read more than 20 articles, even from NASA, I bought books on Amazon, but unfortunately I cannot recondition a laser tube, something is missing something I don't know what it is.
I need help from someone in the group who can help me, I am on the other side of the planet, I would not disturb anyone's business, I just want to learn.
What CO2 laser catalyst do I find to buy?
There is a secret of the aging of the gas in the laser tube in its decay can someone explain to me how to do it?
About the vacuum pumps for filling the tube, which is the best?
what are the best suppliers you know?

he got a lot smarter from this video to 2020

He was already quite good from the start.

what kind of laser technology is used on laser weapons ? This neon,helium is appropriate ?

anyone in 2020 ???

I remember batfleck laser.

ترجم عربي لو سمحت

Hey buddy can you tell me where I can buy this kind of laser and mirrors ????

So it's my understanding that the light energy bounces back and forth between the two mirrors (one being just less reflective than the other) until the beam breaks through the less reflective mirror which results in beam emission. That tells me that there is a substantial energy loss. Most of the power remains inside the open cavity tube allowing only a lesser percentage of the power to escape.
We have auto reactive welding masks the lenses of which are transparent until the goggles detect the higher light energy emitted by arc action. The lenses of the goggles automatically darken to protect the welders' eyes, then return to transparent once the more intense light ceases.
Would there be any way to create an auto response mirrored surface that would react in similar fashion? With such a mirrored surface, the two mirrors (one being a stable full reflective mirror at the back end of the laser) could be made completely reflective until such time as beam emission was desired allowing for full power emission instead of partial.

Johan made a Hilarious correction to Destin putting Star Trek properly superior for credence to that other one which shall remain nameless. Destin, you were improperly dressed today. Tsk Tsk! 🤓 Trek On Boundless!

This was one of my lab experiment last year, and it's super hard to get the mirrors perfectly aligned, I never get the laser working.

Hey its me destin being chill at uranus with my alien buddy jakasmdmdks today we are going to learn about dark energy’s origin

A another rare example of a phenomenon that does not exist in nature, but has been produced by the human mind! Hey, we are pretty special.

This video is relevant for sections 15.1 and 15.2 in the book "Fundamentals Of Photonics, Second Edition" in my course "Optics & Photonics" at LTU in Sweden.

I am pointing that out here as a reminder in case I forget, lolz.

Smarter everyday dutch hier suriname 😆

Today I learned that LASER is an acronym for Light Amplification by Stimulated Emission of Radiation.

This guy breathes Dutch

My avast antivirus blocked the link at the end of video as virus O_o