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Thankyou rich. Let us know how it turns out :)
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Thanks for the feedback dh.
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HI echodog,The run time is pretty short. Alkaline D cells would not carry the load that this requres, so I used NIMH D cells. The current draw is about 7 amps so it would be around an hour and fifteen minutes before the cells were depleted.
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OH, I see now... Thanks.
Thats very impressive.
Thanks snowy. Have you got a link to a good pic of that cannon? You've got me currious what its like now....
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Hi RJS9, I would be glad to help you. Lets say that you had a lux reading of 425, and the distance you measured that number from was 10 meters. You would mutliply425 x 10= 4,250 and then by 10 one more time 42,500 This means you have 42,500 lux @ one meter. Take this number and multiply it by 4. 42,000x 4= 168,000 then extrapolate the square root of that number. In this case is 409 which give you your range or distance number.If you dont know how to extrapolate the square root of you number there are online calculators that can do it for you.http://www.math.com/students/calculators/source/sq...Let me know if I can assist you further :)
Your correct. You do need to make sure its very dark so no light is registering on the meter before you start. That is why I do mine inside the house so it can be very dark.
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I'm in as well :) I would be interested in food, tech, or play.Thank you.
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