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04-13-2017, 12:20 PM #1825
 Super Moderator Join Date: Jan 2014 Location: Dohaha, Qatar Posts: 11,408 Rep Power: 21474886
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I was wondering why a bike would be left chained to a tree for so long too. Then I started to think something happened to the owner, so they never came back for the bike. I guess we could speculate anything, only the shadow knows, or the guy who chained it there who is laughing how they got rid of what they considered a piece of junk and no one has come to remove it.

In Anchorage we only use sand on our roads in the winter, thus our cars don't rust very fast compared to many eastern states.

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Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be ~very~ roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

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Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

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Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

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04-13-2017, 12:47 PM #1826
 Class 4 Laser Join Date: Oct 2012 Location: S.E. Michigan U.S.A. Posts: 5,124 Rep Power: 21474862
BowtieGuy
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Quote:
 Originally Posted by Alaskan In Anchorage we only use sand on our roads in the winter, thus our cars don't rust very fast compared to many eastern states. Why no salt? https://www.adn.com/anchorage/articl...ce/2008/11/28/

I wish that we treated our roads here in Mi. with something other than salt in the winter, it's terrible for our cars. I guess they call the east and midwest the "rust belt" for a reason!
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Last edited by BowtieGuy; 04-13-2017 at 12:48 PM.

04-13-2017, 12:52 PM #1827
 Super Moderator Join Date: Jan 2014 Location: Dohaha, Qatar Posts: 11,408 Rep Power: 21474886
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They might sell cars faster that way too? I don't know, must be worth it to reduce accidents or they wouldn't spend the money? Perhaps the economy too, if people can't, or are afraid to drive to work. Temperatures near freezing, either just above or below are both dangerous, as cars sit in intersections they warm the ice and melt it some making it slick where it can be the most dangerous, if you try to stop and can't. In Alaska, most of the winter we are far below freezing, so it isn't as slick.
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be ~very~ roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

04-13-2017, 01:24 PM #1828
 Class 3B Laser Join Date: Apr 2015 Location: Fall river MA Posts: 3,472 Rep Power: 21474853
GSS
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Looking out my window I see probably see 10 cars that I know of that have had rusted out and popped brake lines, mine included a few times, fuel line sending units etc..
Exhaust systems seem to last roughly 3 years no joke.
Big money in these area's for sure for parts stores
I do get a kick though from watching a U tube video of someone showing a repair and no rust what so ever to deal with What a whole new ball game.
Bowtie, as for your Nova, I wouldn't drive it unless it was dipped in a pool of vasoline then bubble wrapped

Alaskan, if your wife happends to get bored by your absence I would ask her to play detective and solve that bike thing
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04-13-2017, 03:08 PM #1829
 Class 4 Laser Join Date: Feb 2008 Location: Canada Posts: 9,404 Rep Power: 15890465
diachi
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Quote:
 Originally Posted by GSS Looking out my window I see probably see 10 cars that I know of that have had rusted out and popped brake lines, mine included a few times, fuel line sending units etc.. Exhaust systems seem to last roughly 3 years no joke. Big money in these area's for sure for parts stores I do get a kick though from watching a U tube video of someone showing a repair and no rust what so ever to deal with What a whole new ball game. Bowtie, as for your Nova, I wouldn't drive it unless it was dipped in a pool of vasoline then bubble wrapped Alaskan, if your wife happends to get bored by your absence I would ask her to play detective and solve that bike thing

Same sort of climate here in Yellowknife, we also don't use salt as it's too cold for it to work, they just dump gravel on the roads periodically. That said, the climate causes other issues.

My truck is 10 years old and has a few rust patches, but nothing unreasonable, nothing rusted through. Has the same exhaust it had when I bought it 3.5 years ago (which was probably on there for a couple years before, nice straight pipe!), no issues there. Although the exhaust manifold had some broken bolts/rust issues, that's a common issue on that engine though. Rear brakes needed done last year, complete replacement, shoes, drum, cylinders (both blew, leaked a ton of fluid, driving that to the shop with no brakes was fun) and mounting hardware. Going to put that one down to my drifting around in the winter...

Don't let the lack of salt fool you, mechanics here rake it in too, between the extreme cold and the bumpy roads a lot of parts really don't last all that long, notably suspension parts and all manner of seals/hoses.
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Last edited by diachi; 04-13-2017 at 03:11 PM.

04-13-2017, 07:03 PM #1830
 Class 4 Laser Join Date: Sep 2013 Location: Washington State Posts: 12,492 Rep Power: 21474890
paul1598419
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Instead of salt, states may use calcium chloride or magnesium chloride. They make a brine-like solution with water that has a higher melting point than slat and are better for cars and the environment.
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405nm Laser Pointer 45mW
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Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
574nm OptLaser DPSS Laser 36 mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM

04-19-2017, 10:08 PM #1831
 Class 4 Laser Join Date: Mar 2011 Location: 20 Minutes from NYC. Posts: 16,031 Rep Power: 1583146
InfinitusEquitas
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Little nephew forgot this guy when my brother and his wife were visiting. Now I have an excuse to buy transformers again

04-20-2017, 12:12 AM #1832
 Class 4 Laser Join Date: Sep 2013 Location: Washington State Posts: 12,492 Rep Power: 21474890
paul1598419
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That's hilarious. I didn't know you had a collection of these at one time. I was pretty old when the first iteration popped up. Never knew anyone personally who had a collection.
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405nm Laser Pointer 45mW
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Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
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473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
574nm OptLaser DPSS Laser 36 mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM

04-20-2017, 05:31 PM #1833
 Class 4 Laser Join Date: Mar 2011 Location: 20 Minutes from NYC. Posts: 16,031 Rep Power: 1583146
InfinitusEquitas
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Quote:
 Originally Posted by paul1598419 That's hilarious. I didn't know you had a collection of these at one time. I was pretty old when the first iteration popped up. Never knew anyone personally who had a collection.
Without going into details I had what would be considered a very difficult childhood, and adolescence. (Life hasn't been a picnic since, but it has gotten better.)

Being a very introverted, not very social child, I had an extremely active imagination, and according to my parents went from playing with large wooden blocks (soviet union, circa 1985-86) to more complicated toys, regular sized legos, and erector sets by 2. Before I actually started talking

So pretty much up until I left for college at 17, I did have a ton of toys, and aside from legos, transformers were my favorites. There was a cartoon called Beast Wars in the 90's... I had a nearly complete set of all the characters. One day I was in a bad mood, don't even remember why, but I showed everything into a big garbage back and threw them out.

Definitely regret that decision now. Would have been nice to give them to my nephew, and looking at what they sell for, combined they'd probably be worth 2-3k today.

Nephew doesn't have the spacial reasoning to actually transform them yet, but loves how they move around, change shape, and so on.

While I'm not ruling out the possibility entirely, I do not plan to have kids, but I do look forward a lot to spoiling my brother's kid

So yes... again

04-20-2017, 06:14 PM #1834
 Class 4 Laser Join Date: Sep 2013 Location: Washington State Posts: 12,492 Rep Power: 21474890
paul1598419
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That was a very moving story. You never know what anyone has been through. Thank you for sharing it. It isn't always easy to put your personal story out there for everyone to see.
One thing you may not be aware of is that some toys have small parts that easily break off and if put in the mouth of a small child can cause a choking hazard. As a single parent it is something I became aware of early. I had a grandmother who was watching my child as well as her younger grandson when my daughter was 4 years old. She claimed that my daughter broke a small plastic toy car of his, though she was only speculating, having not been around when the toy was broken. Her grandson was 2 years old and the toy package said for children 7 and up. I explained to her that that was not a suggestion for her grandson's ability to interact with the toy, but a warning that it was a choking hazard for him. She became indignant and i got a new child care provider for my daughter the very next day. I thought I would share this as you never know what might cause irrevocable harm to a small child whom you obviously care a great deal for.
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405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
574nm OptLaser DPSS Laser 36 mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM

Last edited by paul1598419; 04-20-2017 at 06:50 PM.

04-20-2017, 06:37 PM #1835
 Class 4 Laser Join Date: Mar 2011 Location: 20 Minutes from NYC. Posts: 16,031 Rep Power: 1583146
InfinitusEquitas
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Thank you. With age comes perspective, and the types of things used to cause me anxiety seem silly to me now, nor am I embarrassed by any of my hobbies.

I think my parents bought me so many legos and transformers (which I'd often reassemble in new ways) to keep me from taking stuff apart, and reorganizing everything when I was left alone. Mom was pissed when I drilled decorative holes in some of the furniture with a manual drill. Dad even more so when he came home to the tv taken apart To be fair I did put it back together, and it worked, but still.

04-20-2017, 06:51 PM #1836
 Class 3B Laser Join Date: Apr 2015 Location: Fall river MA Posts: 3,472 Rep Power: 21474853
GSS
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IE, the spoiling, the time and things you do with your nephew now will be story's for him to tell in years
Good story...
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Last edited by GSS; 04-20-2017 at 06:51 PM.

04-21-2017, 03:09 AM #1837
 Super Moderator Join Date: Jun 2016 Location: Fennoscandia Posts: 2,071 Rep Power: 21474847
ArcticDude
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------------

Spiring is DEFINITELY canceled..

Latest satellite image >>

04-21-2017, 04:50 AM #1838
 Class 4 Laser Join Date: Sep 2013 Location: Washington State Posts: 12,492 Rep Power: 21474890
paul1598419
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Yeah. I am glad to be where I am and not where you are.
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405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
574nm OptLaser DPSS Laser 36 mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM

04-21-2017, 06:39 AM #1839
 Class 4 Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 5,745 Rep Power: 21474862
CurtisOliver
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Same Paul.
Unlucky ArcticDude.
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Last edited by CurtisOliver; 04-21-2017 at 06:40 AM.

04-25-2017, 06:33 PM #1840
 Super Moderator Join Date: Jun 2016 Location: Fennoscandia Posts: 2,071 Rep Power: 21474847
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