OK, OK. It SEEMED like 75 Watts, but yes, I stand corrected. In my haste and enthusiasm I forgot the "m". By the way, I just purchased a two pack of CR123A batteries for it at the Walmart in Riverdale for $10.50 including tax. Wayne A. Sumner Math/Physics/Astronomy/Engineering Boy's Tennis Coach Northridge High School Davis School District (801) 402-8610
"Chuck Hards" <chuck.hards@gmail.com> 06/17/08 9:39 AM >>> 75 milliWatts Wayne- 75/1000ths of one Watt. That's what's so incredible about the laser. How bright such a small amount of energy can be if it's coherent and collimated. (IIRC, Seth said your laser is actually rated at 80 milliWatts.)
On Tue, Jun 17, 2008 at 9:07 AM, Wayne Sumner <wsumner@dsdmail.net> wrote:
WOW! Antaries was a half degree from the moon last night and the 75 watt laser pointer I picked up from Seth Jarvis yesterday was wonderfully bright pointing at it, even from 50 feet away. Thanks, Seth.
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lol, I completely understand your enthusiasm! Thanks for the Walmart battery tip. On Tue, Jun 17, 2008 at 5:53 PM, Wayne Sumner <wsumner@dsdmail.net> wrote:
OK, OK. It SEEMED like 75 Watts, but yes, I stand corrected. In my haste and enthusiasm I forgot the "m". By the way, I just purchased a two pack of CR123A batteries for it at the Walmart in Riverdale for $10.50 including tax.
These 50mW - 100mW lasers are able to be easily seen with the beam even adjacent to the full moon, based on testing last night. They should work just fine for sidewalk astronomy from the worst light-polluted location.
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Chuck Hards -
Wayne Sumner