|
gopher
Coffee Bean Extraordinaire


Registered: 11/22/17
Posts: 12,999
Loc: Canada
Last seen: 3 hours, 28 minutes
|
Laser pointer strengths 1
#26704586 - 05/29/20 01:01 PM (3 years, 7 months ago) |
|
|
Whats the smallets mW laser pointer you need to point at the stars, I used to have one 10 years ago, I think it was a green 20 mW pointer, but thats kinda a guess, I forget
Im looking at pointers on fasttech and im only seeing 5mW poointers that seem too weak to me, but I dont know, they also have 100mW and 200mW pointers which I think sound too strong
-------------------- For most of the normies out there, an operating system is just a bootloader for Google Chrome. Since Disney has obtained tremendous value from the public domain, knows how important the public domain is, and is firmly determined to never contribute anything to it. My pronouns are He and Him, and my adjectives are Fat and Jazzy
|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: gopher]
#26704591 - 05/29/20 01:04 PM (3 years, 7 months ago) |
|
|
I have a 50mW green laser pointer and its definitely strong enough for Astronomy (i used to use it at raves). I would say minimal is 25mW.
|
longbus
Will grow for food



Registered: 02/25/18
Posts: 11,096
Loc: yer moms pants
Last seen: 6 hours, 12 minutes
|
|
How do you use it for astronomy?
--------------------
never 4get!
|
Tripsurfer
Bring Back Asante!



Registered: 08/01/12
Posts: 7,129
Loc: West of Windward
Last seen: 3 months, 27 days
|
Re: Laser pointer strengths [Re: longbus]
#26704623 - 05/29/20 01:13 PM (3 years, 7 months ago) |
|
|
I am curious about that also
-------------------- Ach en wee ben ik de klos, met mijn boog schoot ik een albatros... A philosopher is a person who knows less and less about more and more, until he knows nothing about everything.

|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: longbus]
#26704624 - 05/29/20 01:13 PM (3 years, 7 months ago) |
|
|
By pointing it at stars and constellations. Its really for helping other people learn Astronomy. It can also be useful for guiding a telescope.
|
longbus
Will grow for food



Registered: 02/25/18
Posts: 11,096
Loc: yer moms pants
Last seen: 6 hours, 12 minutes
|
|
Holy dang. You're saying that you can actually point to the sky with a laser?! That's trippy as fuck man!
--------------------
never 4get!
|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: longbus]
#26704635 - 05/29/20 01:17 PM (3 years, 7 months ago) |
|
|
uhhh yeah. Its a laser pointer!
Jump to 17:09
|
longbus
Will grow for food



Registered: 02/25/18
Posts: 11,096
Loc: yer moms pants
Last seen: 6 hours, 12 minutes
|
|
I am just taken aback that it goes that far. I wonder if they could see it from space
--------------------
never 4get!
|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: longbus]
#26704673 - 05/29/20 01:30 PM (3 years, 7 months ago) |
|
|
It looks like it goes on forever but Im not really sure 
Within the near-perfect vacuum of space, it just might go on forever. 
Green laser pointers are the da bomb. I highly recommend one. 50mW is where its gets pretty chill
|
Tripsurfer
Bring Back Asante!



Registered: 08/01/12
Posts: 7,129
Loc: West of Windward
Last seen: 3 months, 27 days
|
|
That looks amazing
-------------------- Ach en wee ben ik de klos, met mijn boog schoot ik een albatros... A philosopher is a person who knows less and less about more and more, until he knows nothing about everything.

|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
|
Heres a used 100mW: https://www.ebay.com/itm/100mW-Pen-Laser-Pointer-Green-Very-Strong/143573479926?hash=item216da571f6%3Ag%3ApXwAAOSwc6ReinNG&LH_BIN=1
Whats ironic about laser pointers is that they are similar to LSD tabs such as being advertised as 100 micrograms but are really more like 95 micrograms. Lasers that say they are 100mw are actually less around 90mw, but still very bright.
Same video, jump to 19:49
|
longbus
Will grow for food



Registered: 02/25/18
Posts: 11,096
Loc: yer moms pants
Last seen: 6 hours, 12 minutes
|
Re: Laser pointer strengths [Re: Tripsurfer] 1
#26704680 - 05/29/20 01:33 PM (3 years, 7 months ago) |
|
|
lol when I was a little kid me and my friends would sneak around the neighbourhood shining them in peoples windows. They would get so freaked out. We were little shits lol.
--------------------
never 4get!
|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: longbus]
#26704683 - 05/29/20 01:34 PM (3 years, 7 months ago) |
|
|
Was it a red or green laser? Did you pretend to be snipers
|
longbus
Will grow for food



Registered: 02/25/18
Posts: 11,096
Loc: yer moms pants
Last seen: 6 hours, 12 minutes
|
|
We were pretending to be spies lol, this is right around when those spy kids movies came out. It was a red one, sometimes we for sure pretended that it was a sniper dot hahaha. The best is when you would get a mirror, that really freaked em out lol.
--------------------
never 4get!
|
koods
Ribbit



Registered: 05/26/11
Posts: 106,049
Loc: Maryland/DC Burbs
Last seen: 57 minutes, 14 seconds
|
Re: Laser pointer strengths [Re: longbus] 1
#26704695 - 05/29/20 01:39 PM (3 years, 7 months ago) |
|
|
Quote:
longbus said: I am just taken aback that it goes that far. I wonder if they could see it from space 
They did an experiment with search lights pointed at the space station and the space station said they could see them.
--------------------
NotSheekle said “if I believed she was 16 I would become unattracted to her”
|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: longbus]
#26704697 - 05/29/20 01:40 PM (3 years, 7 months ago) |
|
|
haha, nice. I used to play with the undersides of CDs with my laser pointer at raves/festivals. Its a great combo
|
Asante
Mage


Registered: 02/06/02
Posts: 86,795
|
|
Guys, stronger lasers than the 5mw laser exist but.. one brief flash of a reflection of one of those lasers can either completely destroy the vision in that eye or cause a huge black spot in the center of your vision that will stay there all your life.
Dont fuck with lasers unless you know what you're doing and wear the appropriate laser goggles for a laser of that strength type and color.
That said, human eyes detect green light the best. It seems brightest, which is why most laser pointers and serious glowsticks are green in color.
-------------------- Omnicyclion.org higher knowledge starts here
|
longbus
Will grow for food



Registered: 02/25/18
Posts: 11,096
Loc: yer moms pants
Last seen: 6 hours, 12 minutes
|
Re: Laser pointer strengths [Re: Asante]
#26714896 - 06/02/20 07:05 PM (3 years, 7 months ago) |
|
|
That's really good advice Asante! Lasers are serious business.
--------------------
never 4get!
|
LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,333
Loc: The Inexpressible...
Last seen: 1 hour, 53 minutes
|
Re: Laser pointer strengths [Re: Asante]
#26715092 - 06/02/20 08:31 PM (3 years, 7 months ago) |
|
|
Good advice but dont let the power of lasers prevent u from using them. Just practice safe laser usage and you will be fine.
|
Ice9
3X Ban Lotto Champion



Registered: 03/20/14
Posts: 11,232
Loc: daterapeville,USA
Last seen: 2 hours, 20 minutes
|
|
Also remember for the same mW rating, red<green<blue. You can see a lasers source and it's endpoint but the atmosphere will disperse the polarized photons. My friend worked in an optics lab that had a 5W laser, if your hand accidentally passed through the beams path(which you can't see) it would cause immediate 3rd degree burns and looking at the lasers endpoint without safety googles would blind you.
-------------------- The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man. -- George Brenard Shaw
|
|