Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Off-Topic > Other



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 08-30-2008, 07:49 PM #1
Jimmymcjimthejim's Avatar
Class 3R Laser
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Jimmymcjimthejim Jimmymcjimthejim is offline
Class 3R Laser
Jimmymcjimthejim's Avatar
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Default Ideas for a Science Fair project?

Any good ideas for a science fair project involving lasers? (For school)
I was thinking of like
What color absorbs violet light the best?
And I would test this using a violet laser on a balloon, and the balloon that pops the fastest would absorb violet light the best.
Any ideas are appreciated.
Thanks,
Jimmymcjimthejim

Oh, and keep in mind that I have to use the Scientific method to test it, so no crazy stuff please.


__________________
Current Lasers:
8??nm: 1050mA DIY Micro Sized
658nm: 2mW keychain pointer - DIY 80mA/350mA switchable in Altoids tin - 300mA DIY Micro Sized
632.8nm: 10mW Hughes HeNe - 15mW Melles Griot HeNe - 1mW Melles Griot bare tube
612nm: 5mW Meredith Instruments HeNe
594.1nm: 4mW Meredith Instruments HeNe
543nm: 2mW Melles Griot HeNe - <1mW Multimode 6" HeNe (He's cute!)
532nm: 5mW Lyra-G5 - 70mW DIY by Wannaburn
473nm: 5mW Lab Style
445nm: DIY 650mA in Sonar II Host
405nm: DIY LG 10X at 330mA with Ehgemus host and Microboost - CNI GLP-405 70mW
Jimmymcjimthejim is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 08-30-2008, 07:54 PM #2
maxkillz's Avatar
Class 2M Laser
 
Join Date: Jul 2008
Posts: 941
Rep Power: 62
maxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond repute
maxkillz maxkillz is offline
Class 2M Laser
maxkillz's Avatar
 
Join Date: Jul 2008
Posts: 941
Rep Power: 62
maxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond reputemaxkillz has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

On the color wheel yellowish green is the opposite so i would say a yellow balloon would be the best ;D ;D
maxkillz is offline   Reply With Quote
Old 08-30-2008, 08:12 PM #3
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

How about you make a Home security system.

Set up a laser beam as a sensor, so that when someone or something interrupts the beam, a &gt;50mW pulsed green laser blasts you in the face along with a 100mW blu-ray, a 200mW red (all unfocused of course, and spinning in confusing patterns) and a huge flood lamp. Then you get hit with a barrage of paintballs (or some kind of high velocity projectile). And of course you have to have a very loud siren.

If you set this up in front of your door, and someone breaks in, they get hit by a bunch of crazy things at once. It would be very disorienting and it would draw a lot of attention.
It's like a security system.

Or you can just make it so when the laser sensor is tripped, a massive tesla coil is activated and kills anything within a 5 meter radius.

A+ for sure.
RA_pierce is online now   Reply With Quote
Old 08-30-2008, 08:15 PM #4
Jimmymcjimthejim's Avatar
Class 3R Laser
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Jimmymcjimthejim Jimmymcjimthejim is offline
Class 3R Laser
Jimmymcjimthejim's Avatar
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

Quote:
Originally Posted by RA_pierce
How about you make a Home security system.

Set up a laser beam as a sensor, so that when someone or something interrupts the beam, a &gt;50mW pulsed green laser blasts you in the face along with a 100mW blu-ray, a 200mW red (all unfocused of course, and spinning in confusing patterns) and a huge flood lamp. Then you get hit with a barrage of paintballs (or some kind of high velocity projectile). And of course you have to have a very loud siren.

If you set this up in front of your door, and someone breaks in, they get hit by a bunch of crazy things at once. It would be very disorienting and it would draw a lot of attention.
It's like a security system.

Or you can just make it so when the laser sensor is tripped, a massive tesla coil is activated and kills anything within a 5 meter radius.

A+ for sure.
Lol, great project (and kind of useful!)
But I don't see how it can be used for the science fair using the scientific method.. There's nothing to prove there with that project!
__________________
Current Lasers:
8??nm: 1050mA DIY Micro Sized
658nm: 2mW keychain pointer - DIY 80mA/350mA switchable in Altoids tin - 300mA DIY Micro Sized
632.8nm: 10mW Hughes HeNe - 15mW Melles Griot HeNe - 1mW Melles Griot bare tube
612nm: 5mW Meredith Instruments HeNe
594.1nm: 4mW Meredith Instruments HeNe
543nm: 2mW Melles Griot HeNe - <1mW Multimode 6" HeNe (He's cute!)
532nm: 5mW Lyra-G5 - 70mW DIY by Wannaburn
473nm: 5mW Lab Style
445nm: DIY 650mA in Sonar II Host
405nm: DIY LG 10X at 330mA with Ehgemus host and Microboost - CNI GLP-405 70mW
Jimmymcjimthejim is offline   Reply With Quote
Old 08-30-2008, 08:32 PM #5
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 8,042
Rep Power: 40065
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 8,042
Rep Power: 40065
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Ideas for a Science Fair project?

You could demonstrate how different colours of light are refracted more, or absorbed more, and explain about energy densities.

__________________


405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

diachi is online now   Reply With Quote
Old 08-30-2008, 08:47 PM #6
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

Get several different types of flowers, get a decent spectrum of lasers (IR, red, green, Blu-Ray) at relatively high power levels and see how they react to different colors of light. You can make a green house type thing.

Stick the flowers in complete darkness (except for the laser light) and see which wavelength can support photosynthesis best.

It sounds pretty original and I actually wanted to do it for a science project myself. But I've graduated already.

And if you can't get enough power out of lasers alone, get IR, red, green and near UV leds and couple them with the lasers.
RA_pierce is online now   Reply With Quote
Old 08-30-2008, 11:22 PM #7
Jimmymcjimthejim's Avatar
Class 3R Laser
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Jimmymcjimthejim Jimmymcjimthejim is offline
Class 3R Laser
Jimmymcjimthejim's Avatar
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

Quote:
Originally Posted by Diachi
You could demonstrate how different colours of light are refracted more, or absorbed more, and explain about energy densities.
Interesting. I like this because not many people have different color lasers, but I don't like how you don't really need lasers to do this. Good idea though.
Quote:
Originally Posted by RA_pierce
Get several different types of flowers, get a decent spectrum of lasers (IR, red, green, Blu-Ray) at relatively high power levels and see how they react to different colors of light. You can make a green house type thing.

Stick the flowers in complete darkness (except for the laser light) and see which wavelength can support photosynthesis best.

It sounds pretty original and I actually wanted to do it for a science project myself. But I've graduated already.

And if you can't get enough power out of lasers alone, get IR, red, green and near UV leds and couple them with the lasers.
Good idea! But, again, the only thing that I don't like about that experiment is how it doesn't have to be laser specific.
__________________
Current Lasers:
8??nm: 1050mA DIY Micro Sized
658nm: 2mW keychain pointer - DIY 80mA/350mA switchable in Altoids tin - 300mA DIY Micro Sized
632.8nm: 10mW Hughes HeNe - 15mW Melles Griot HeNe - 1mW Melles Griot bare tube
612nm: 5mW Meredith Instruments HeNe
594.1nm: 4mW Meredith Instruments HeNe
543nm: 2mW Melles Griot HeNe - <1mW Multimode 6" HeNe (He's cute!)
532nm: 5mW Lyra-G5 - 70mW DIY by Wannaburn
473nm: 5mW Lab Style
445nm: DIY 650mA in Sonar II Host
405nm: DIY LG 10X at 330mA with Ehgemus host and Microboost - CNI GLP-405 70mW
Jimmymcjimthejim is offline   Reply With Quote
Old 08-30-2008, 11:44 PM #8
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

Quote:
Originally Posted by Jimmymcjimthejim
Good idea! But, again, the only thing that I don't like about that experiment is how it doesn't have to be laser specific.
Well, that can be a different experiment. You can use a full spectrum of lasers Vs. a full spectrum of LEDs. You can see if coherent/monochromatic light is absorbed better than incoherent light.

Umm.. what else... How about constructive and destructive interference?
or... Make some sort of communications device using lasers and pit it against a more conventional means of communication.
But that sounds a little intense.
RA_pierce is online now   Reply With Quote
Old 08-31-2008, 07:45 AM #9
Banned
 
Join Date: Mar 2008
Posts: 1,412
Rep Power: 0
VillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond repute
VillageIdiot VillageIdiot is offline
Banned
 
Join Date: Mar 2008
Posts: 1,412
Rep Power: 0
VillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond reputeVillageIdiot has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

I still reckon thermal experiments with balloons is the coolest.

Do:

different colours on different balloons,
pop an opaque baloon inside a clear balloon,
explain why you need to focus the laser,
why a red laser won't pop a red balloon or a white balloon,
and why a blu-ray can pop lots of different colours.
VillageIdiot is offline   Reply With Quote
Old 08-31-2008, 03:48 PM #10
Jimmymcjimthejim's Avatar
Class 3R Laser
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Jimmymcjimthejim Jimmymcjimthejim is offline
Class 3R Laser
Jimmymcjimthejim's Avatar
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

Quote:
Originally Posted by VillageIdiot
I still reckon thermal experiments with balloons is the coolest.

Do:

different colours on different balloons,
pop an opaque baloon inside a clear balloon,
explain why you need to focus the laser,
why a red laser won't pop a red balloon or a white balloon,
and why a blu-ray can pop lots of different colours.
Sounds good, except for the fact that I don't have a red (diode) balloon popping laser. But maybe I can convince my parents to let me get one if this experiment goes well.
__________________
Current Lasers:
8??nm: 1050mA DIY Micro Sized
658nm: 2mW keychain pointer - DIY 80mA/350mA switchable in Altoids tin - 300mA DIY Micro Sized
632.8nm: 10mW Hughes HeNe - 15mW Melles Griot HeNe - 1mW Melles Griot bare tube
612nm: 5mW Meredith Instruments HeNe
594.1nm: 4mW Meredith Instruments HeNe
543nm: 2mW Melles Griot HeNe - <1mW Multimode 6" HeNe (He's cute!)
532nm: 5mW Lyra-G5 - 70mW DIY by Wannaburn
473nm: 5mW Lab Style
445nm: DIY 650mA in Sonar II Host
405nm: DIY LG 10X at 330mA with Ehgemus host and Microboost - CNI GLP-405 70mW
Jimmymcjimthejim is offline   Reply With Quote
Old 08-31-2008, 05:25 PM #11
pullbangdead's Avatar
Class 3R Laser
 
Join Date: Aug 2007
Posts: 2,045
Rep Power: 239
pullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond repute
pullbangdead pullbangdead is offline
Class 3R Laser
pullbangdead's Avatar
 
Join Date: Aug 2007
Posts: 2,045
Rep Power: 239
pullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond reputepullbangdead has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

I personally like the differing index of refraction for different wavelengths of light, and calculating the indices of refraction of a prism. Lasers make it really easy to measure using a prism and a decent little test setup. Real math, real physics that affects people every day. And for all the non-physics judges who think they have better things to do than read all your work and equations, it's &quot;Oh, so this is how rainbows are made, but with LASERS!!!1!&quot;. I could send you a bunch of stuff to get started, we did a lab like that in my undergraduate program with multiple laser colors and prisms. It was more intense, but it would be really easy to scale back into a great high school science fair project.
pullbangdead is offline   Reply With Quote
Old 09-01-2008, 03:20 AM #12
Jimmymcjimthejim's Avatar
Class 3R Laser
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Jimmymcjimthejim Jimmymcjimthejim is offline
Class 3R Laser
Jimmymcjimthejim's Avatar
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

That sounds awesome! It would be a little more interesting and applicable than the balloon popping thing also. If my science teacher doesn't like balloons, then I'll do that instead.
__________________
Current Lasers:
8??nm: 1050mA DIY Micro Sized
658nm: 2mW keychain pointer - DIY 80mA/350mA switchable in Altoids tin - 300mA DIY Micro Sized
632.8nm: 10mW Hughes HeNe - 15mW Melles Griot HeNe - 1mW Melles Griot bare tube
612nm: 5mW Meredith Instruments HeNe
594.1nm: 4mW Meredith Instruments HeNe
543nm: 2mW Melles Griot HeNe - <1mW Multimode 6" HeNe (He's cute!)
532nm: 5mW Lyra-G5 - 70mW DIY by Wannaburn
473nm: 5mW Lab Style
445nm: DIY 650mA in Sonar II Host
405nm: DIY LG 10X at 330mA with Ehgemus host and Microboost - CNI GLP-405 70mW
Jimmymcjimthejim is offline   Reply With Quote
Old 09-01-2008, 03:41 AM #13
Cereal Eater
 
Join Date: Dec 2007
Location: Argentina
Posts: 6,333
Rep Power: 331
nikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond repute
Send a message via MSN to nikokapo
nikokapo nikokapo is offline
Cereal Eater
 
Join Date: Dec 2007
Location: Argentina
Posts: 6,333
Rep Power: 331
nikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond reputenikokapo has a reputation beyond repute
Send a message via MSN to nikokapo
Default Re: Ideas for a Science Fair project?

i agree with both VI and pullbangdead

refraction and some colour tech stuff would be great

also, i'd add the fluorescence phenomenon with a blu-ray


A++ guaranteed.


if not, just lemme call Chuck
nikokapo is offline   Reply With Quote
Old 09-02-2008, 08:56 PM #14
HumanSymphony's Avatar
Half Afro / Half Man
 
Join Date: May 2008
Location: Washington
Posts: 2,031
Rep Power: 661
HumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond repute
Send a message via AIM to HumanSymphony Send a message via MSN to HumanSymphony Send a message via Yahoo to HumanSymphony
HumanSymphony HumanSymphony is offline
Half Afro / Half Man
HumanSymphony's Avatar
 
Join Date: May 2008
Location: Washington
Posts: 2,031
Rep Power: 661
HumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond repute
Send a message via AIM to HumanSymphony Send a message via MSN to HumanSymphony Send a message via Yahoo to HumanSymphony
Default Re: Ideas for a Science Fair project?

i actually think a laser alarm system would be pretty sweet. I'll probably do it myself for fun lol ;D all you'd need is a photo diode connected to a super loud alarm type thing. Shine laser directly on photo diode. When light is shined on it the diode has maximum resistance. When you interrupt beam there's no resistance = alarm goes off granted there's no light in the room either lol
__________________
Quote:
Originally Posted by yobresal View Post
I didn't even know there was a game.
Quote:
Originally Posted by Gryphon View Post
LOL, i didn't know there was a movie
Quote:
Originally Posted by HumanSymphony View Post
DOUBLE LOL!
Laser Rap (Part I)
Laser Rap (Part II)
Laser Rap (Part III)
HumanSymphony is offline   Reply With Quote
Old 09-02-2008, 09:33 PM #15
Jimmymcjimthejim's Avatar
Class 3R Laser
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Jimmymcjimthejim Jimmymcjimthejim is offline
Class 3R Laser
Jimmymcjimthejim's Avatar
 
Join Date: Apr 2008
Location: South Florida
Posts: 1,543
Rep Power: 135
Jimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond reputeJimmymcjimthejim has a reputation beyond repute
Default Re: Ideas for a Science Fair project?

Quote:
Originally Posted by HumanSymphony
i actually think a laser alarm system would be pretty sweet. I'll probably do it myself for fun lol ;D all you'd need is a photo diode connected to a super loud alarm type thing. Shine laser directly on photo diode. When light is shined on it the diode has maximum resistance. When you interrupt beam there's no resistance = alarm goes off granted there's no light in the room either lol
Yes, that is useful, but there's nothing to prove :-/
__________________
Current Lasers:
8??nm: 1050mA DIY Micro Sized
658nm: 2mW keychain pointer - DIY 80mA/350mA switchable in Altoids tin - 300mA DIY Micro Sized
632.8nm: 10mW Hughes HeNe - 15mW Melles Griot HeNe - 1mW Melles Griot bare tube
612nm: 5mW Meredith Instruments HeNe
594.1nm: 4mW Meredith Instruments HeNe
543nm: 2mW Melles Griot HeNe - <1mW Multimode 6" HeNe (He's cute!)
532nm: 5mW Lyra-G5 - 70mW DIY by Wannaburn
473nm: 5mW Lab Style
445nm: DIY 650mA in Sonar II Host
405nm: DIY LG 10X at 330mA with Ehgemus host and Microboost - CNI GLP-405 70mW
Jimmymcjimthejim is offline   Reply With Quote
Old 09-02-2008, 09:37 PM #16
HumanSymphony's Avatar
Half Afro / Half Man
 
Join Date: May 2008
Location: Washington
Posts: 2,031
Rep Power: 661
HumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond repute
Send a message via AIM to HumanSymphony Send a message via MSN to HumanSymphony Send a message via Yahoo to HumanSymphony
HumanSymphony HumanSymphony is offline
Half Afro / Half Man
HumanSymphony's Avatar
 
Join Date: May 2008
Location: Washington
Posts: 2,031
Rep Power: 661
HumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond repute
Send a message via AIM to HumanSymphony Send a message via MSN to HumanSymphony Send a message via Yahoo to HumanSymphony
Default Re: Ideas for a Science Fair project?

Quote:
Originally Posted by Jimmymcjimthejim
[quote author=HumanSymphony link=1220125783/0#13 date=1220388982]i actually think a laser alarm system would be pretty sweet. I'll probably do it myself for fun lol *;D all you'd need is a photo diode connected to a super loud alarm type thing. Shine laser directly on photo diode. When light is shined on it the diode has maximum resistance. When you interrupt beam there's no resistance = alarm goes off * granted there's no light in the room either lol
Yes, that is useful, but there's nothing to prove *:-/[/quote]
You can prove that um the uh photo diode works! 8-)
__________________
Quote:
Originally Posted by yobresal View Post
I didn't even know there was a game.
Quote:
Originally Posted by Gryphon View Post
LOL, i didn't know there was a movie
Quote:
Originally Posted by HumanSymphony View Post
DOUBLE LOL!
Laser Rap (Part I)
Laser Rap (Part II)
Laser Rap (Part III)
HumanSymphony is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 04:25 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC