News for hackers. Stuff that matters.

A comment on Effectiveness of trees in reducing temperature & outdoor heat exposure in Vegas. Parent comment

Re:Effectiveness of trees in reducing temperature & outdoor ... by PaulHoule on Tuesday July 01, 2025 @08:43PM (#44439274)
The point of that article is that in many places the evaporative cooling is the main thing but in Vegas the water situation is such that it's more about the shade so the optimal tree is something that gives shade but doesn't need a lot of water.

Right where I am sitting now I have an LED strip above my desk and when I have my shirt off (right now) I can very definitely feel the radiant energy when it is on, so if it is really hot I either turn it off or switch it to green because the eye is most sensitive to green light. In fact, as I'm writing this, I just set the backlight on the 55-inch TV I use as a computer monitor down so I'd feel more comfortable.

[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by sidewndr46 on Tuesday July 01, 2025 @09:20PM (#44439440)
So an umbrella?
[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by PaulHoule on Tuesday July 01, 2025 @09:31PM (#44439503)
Yeah, but like an umbrella made by something like Drexler's nanotechology.
[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by gsf_emergency_2 on Tuesday July 01, 2025 @10:16PM (#44439697)
How about something more ... Realistic

https://www.thebrighterside.news/post/mits-high-tech-hydroge...

[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by bmacho on Wednesday July 02, 2025 @04:22AM (#44441301)
That's the opposite of a tree, which turns drinking water into nothing
[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by PaulHoule on Wednesday July 02, 2025 @09:04AM (#44443252)
"Water harvesting" has been around for a long time. I think I first saw a water harvesting device in the U.S. Army Survival manual in the 1980s. It's an active research area and devices continue to improve.
[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by gsf_emergency_2 on Wednesday July 02, 2025 @10:20AM (#44444065)
Passive? Hydrophobic+Dessicant? dew collector? In the desert?

Dew collector seems to make the most sense for 1980

[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by detritus on Wednesday July 02, 2025 @09:18AM (#44443365)
If we're being condescending: 'So, a parasol?'.
[ Parent | on HN ]
Re:Effectiveness of trees in reducing temperature & outdoor ... by sidewndr46 on Thursday July 03, 2025 @09:27AM (#44454835)
I wasn't trying to be condescending, just trying to point out that trees might not be the most viable structure. Last time I was in southern Arizona when I wanted some relief I'd just find a solar panel installation in a parking lot and hang out under that.
[ Parent | on HN ]