@@ZX7RPANDA haha nothing like that. This device is for measuring air temperature gradients to more accurately measure the angle to mountain tops! My trip to Alaska is to help a friend on a boat. Completely unrelated to this project.
I'm finding that air temperature is like the Van Gogh painting "The Starry Night" when you look at it to the hundrednth of a degree... All these swirling invisible pockets of slightly warmer or cooler air!
I thought about that, but this one is really designed to measure air temperature. I do have some ideas for something with a similar sensitivity for measuring surface temperatures. Haven't had time to build it yet though.
And 1° in a meter is a refraction nightmare. Couple that that with barometric pressure difference. Use the combined data to calculate refractive indices and thus coefficient of refraction. Dan will please.
@@fromjesse Do you believe warm under cool air conditions...like a standard atmosphere....raises things in the distance? Any sounding data near your area for further reference? Also...target date for your stretched line in the water test?
@@pablosdog2808 > _Do you believe warm under cool air conditions...like a standard atmosphere....raises things in the distance?_ It depends on the amount of the temperature gradient. What matters is which direction is more dense. Less Dense below More Dense air DOES raise things in the distance. Away from the water, stable air is always less dense ABOVE more dense, because the PRESSURE gradient outweighs the temperature gradient. In other words, air is colder at higher elevations. So you'd think it would be more dense. But it's also at a lower pressure at higher elevations, and this causes it to be LESS dense at higher elevations. You can confirm this yourself by taking an empty water bottle to the top of a mountain and sealing the lid on tight then go down to sea-level and you'll see that the water bottle goes partly flat: This illustrates that even though the air is cooler at higher elevation, it's at such a lower pressure that there is objectively less molecules per liter at higher elevation. czcams.com/video/iZPOvSJxDUo/video.html > _Any sounding data near your area for further reference?_ I assume you mean water depth soundings? It's all published: The color shading and numbers on all nautical maps indicate the depth. > _Also...target date for your stretched line in the water test?_ I'm really hoping this summer! But family and work takes priority so we'll have to see how it works out. But all the major things are ready I think.
@@pablosdog2808 Do you have a rebuttal ready for when the stretched string test disproves your dirt and water pizza? Are you and your dimwitted partner Travis collaborating on a word salad piece of performance art comedy for us?🙂 I hope so🙂
That is perfect for taking refraction in to account
Exactly what I built it for!
Your always up to something cool 😎
Hey man how's it going? Haven't seen you at the beach in a while!
@fromjesse just got back to Washington was in Arizona for a while
@@ZX7RPANDA Ahh well I'm heading to Alaska for a few days!
@@fromjesse nice going to measure the temperature of the ice wall with them things?
@@ZX7RPANDA haha nothing like that. This device is for measuring air temperature gradients to more accurately measure the angle to mountain tops! My trip to Alaska is to help a friend on a boat. Completely unrelated to this project.
Very cool Jesse
I'm finding that air temperature is like the Van Gogh painting "The Starry Night" when you look at it to the hundrednth of a degree... All these swirling invisible pockets of slightly warmer or cooler air!
Quite nifty bud
Cold moonlight test anyone.... :)
I thought about that, but this one is really designed to measure air temperature.
I do have some ideas for something with a similar sensitivity for measuring surface temperatures. Haven't had time to build it yet though.
And 1° in a meter is a refraction nightmare.
Couple that that with barometric pressure difference. Use the combined data to calculate refractive indices and thus coefficient of refraction.
Dan will please.
I think even 0.1 degrees in a meter is pretty bad. It only takes about 0.13° C/m to cancel or double earth curve, right?
@@fromjesse Do you believe warm under cool air conditions...like a standard atmosphere....raises things in the distance? Any sounding data near your area for further reference? Also...target date for your stretched line in the water test?
@@pablosdog2808
> _Do you believe warm under cool air conditions...like a standard atmosphere....raises things in the distance?_
It depends on the amount of the temperature gradient. What matters is which direction is more dense.
Less Dense below More Dense air DOES raise things in the distance.
Away from the water, stable air is always less dense ABOVE more dense, because the PRESSURE gradient outweighs the temperature gradient.
In other words, air is colder at higher elevations. So you'd think it would be more dense. But it's also at a lower pressure at higher elevations, and this causes it to be LESS dense at higher elevations.
You can confirm this yourself by taking an empty water bottle to the top of a mountain and sealing the lid on tight then go down to sea-level and you'll see that the water bottle goes partly flat: This illustrates that even though the air is cooler at higher elevation, it's at such a lower pressure that there is objectively less molecules per liter at higher elevation. czcams.com/video/iZPOvSJxDUo/video.html
> _Any sounding data near your area for further reference?_
I assume you mean water depth soundings? It's all published: The color shading and numbers on all nautical maps indicate the depth.
> _Also...target date for your stretched line in the water test?_
I'm really hoping this summer! But family and work takes priority so we'll have to see how it works out. But all the major things are ready I think.
@@pablosdog2808 Do you have a rebuttal ready for when the stretched string test disproves your dirt and water pizza? Are you and your dimwitted partner Travis collaborating on a word salad piece of performance art comedy for us?🙂 I hope so🙂
@@fromjesse You provided pablospuppy with some concise, useful information about refraction, which he will completely ignore going forward 😐
I can’t decide what I think about this until Travis @theubercaste offers his opinion 😐