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Started By
Message
Here's how to measure the height of a tree using a yardstick
Posted on 6/29/22 at 7:02 pm
Posted on 6/29/22 at 7:02 pm
LINK
quote:
Dr. Dean Coble, professor of forest biometrics, and Jason Grogan, research associate, illustrate how to measure the height of a tree using a yardstick.
8
Posted on 6/29/22 at 7:04 pm to euphemus
I learned to do this in an FFA forestry competition in high school.
Posted on 6/29/22 at 7:04 pm to euphemus
Posted on 6/29/22 at 7:09 pm to euphemus
56 ft - 60 ft might as well guess
Posted on 6/29/22 at 7:09 pm to euphemus
Perhaps it’s better than nothing, but seeing as how the laser indicated an error of 6% for the yardstick method, and the yardstick method is tedious as frick, I have to wonder what the practical use of the yardstick method is, if you have a laser?
Posted on 6/29/22 at 7:12 pm to euphemus
I guesstimate tree height using the following formula:
10 Angstroms < Tree < 40 Arpents
10 Angstroms < Tree < 40 Arpents
Posted on 6/29/22 at 7:43 pm to euphemus
why are they wearing hardhats?
Posted on 6/29/22 at 7:46 pm to euphemus
I use my laser range finder that I use for bow hunting. Measure to base of tree and from same spot measure to top of tree. Height of tree = Sqrt (top^2 - base^2). Only works for level ground...same for his yardstick method
Posted on 6/29/22 at 7:57 pm to greenbean
quote:
why are they wearing hardhats?
OSHA
Posted on 6/29/22 at 10:49 pm to theenemy
I was expecting a quick review of cosines, etc.
Posted on 6/29/22 at 11:10 pm to euphemus
How is a distance from here to a planet or star measured?
Posted on 6/29/22 at 11:27 pm to H newman
quote:
How is a distance from here to a planet or star measured?
By fiction.
Posted on 6/29/22 at 11:37 pm to UndercoverBryologist
quote:
Perhaps it’s better than nothing, but seeing as how the laser indicated an error of 6% for the yardstick method, and the yardstick method is tedious as frick, I have to wonder what the practical use of the yardstick method is, if you have a laser?
Only needing 10 dollars of multi purpose equipment many would have, vs 500+ Dollars of single purpose equipment that only professionals would have.
That device is more than just a range finder.
Posted on 6/29/22 at 11:40 pm to H newman
quote:
How is a distance from here to a planet or star measured?
Primarily by parallax.
They have a pretty solid idea of earth’s relative location, so they measure the objects location in the sky, wait six months till the earth is on the opposite side of its orbit, then repeat. They can use the difference to compute distance.
Posted on 6/29/22 at 11:45 pm to Volvagia
quote:How do flat earthers do it?
Primarily by parallax.
They have a pretty solid idea of earth’s relative location, so they measure the objects location in the sky, wait six months till the earth is on the opposite side of its orbit, then repeat. They can use the difference to compute distance.
Posted on 6/29/22 at 11:48 pm to greenbean
quote:They're wearing jimmy hats too. You can never be too safe.
why are they wearing hardhats?
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