I have an indoor/outdoor thermometer to keep track of how hot the back of my Expedition gets. I drive pretty regularly with two dogs in the back, and over the summer and winter the temps can get a little extreme.

I need to be able to take it out to keep an eye on it remotely (it has about 1/4 mile range) but also have it not rolling around while I drive.

There was a coin holder there that I popped out, and used as a template for an insert to keep this mounted semi-permanently.

Printed with kinda crappy Amazon Basics PETG. If it holds up well, I'll reprint it with better quality black PETG so it matches the car better.

Tips to keeping your identity secure, and protecting other members of your community from being accidentally doxxed or forced offline.

Extremely useful, especially for people who coordinate larger protests or online communities.

cross-posted from: https://lemmy.world/post/15830343

Our retention pond in our neighborhood has a lot of algae and problematic plant growth due to the surrounding farms and lawn runoff, so we're experimenting with a floating island to pull nutrients out before they can cause problems. This will also provide some interesting flowering plants, and more fish habitats.

Will be an interesting experiment to see what survives and what does poorly.

Zinnias, sunflowers, marigolds, and a few others are in net pots, inserted into cutouts in EVA foam mats.

Design is from:
http://www.beemats.com/

More reading:
https://arstechnica.com/science/2024/02/flowers-grown-floating-on-polluted-waterways-can-help-clean-up-nutrient-runoff/

https://www.sciencedirect.com/science/article/pii/S2666765723000637?via%3Dihub

Really important step towards expanding our research on the moon, is creating highly detailed maps of the entire surface.

China is doing some great work on building out infrastructure and studies of the moon. They're the only country that's brought back any moon rocks in decades.

Space Race 3.0 is on, and we'll see how different approaches to the research and manned missions will move forward.

The US is currently building out an extremely upfront cost heavy project, but with a lot of long term benefits.

China is building a more straightforward moon project, but with higher ongoing costs, as much of the infrastructure is disposable (more like Apollo).

The amount of detail in these pictures is amazing. You can really see the texture in the nebula, and the features are so crisp, it kind of looks 3d.

Pretty interesting topic, would be interesting if it could be used to move satellites to a "parking orbit" once they run out of fuel. It's unclear just how much movement in an orbit that can be done, as it says it needs to be in the same energy level.

Source press release: https://www.surrey.ac.uk/news/new-technique-uses-knot-theory-create-tube-map-around-planets-and-moons

Source journal article: https://link.springer.com/article/10.1007/s42064-024-0201-0

If there’s a Holy Grail on Mars, it’s probably a specific type of rock: A rock so important that it holds convincing clues to Mars’ ancient habitability.

Perseverance might have just found it.

There was an issue on Reddit a while back where people would post some hateful stuff, and of course lots of people blocked them.

After a while, anti-trans, racist, and far-right-wing stuff were only seen by non-logged in users, other bigots, or new people, and they weren't getting the downvotes they deserved.

Is this going to be a problem on Lemmy too? I'm worried that if we're all blocking shitty users that we're just hiding the problem from ourselves, not fixing it.

This was a fun project, I had to measure and figure out the iottie thread pitch and then create an adapter to go from a phone mount stand to a backplate on my wireless camera screen for a backup camera on a trailer.

Basically replicated the back plate from the original phone mount with the same tolerances and spacing.

Took 2 test prints to make sure the threads and spacing was right, then I printed it out of PETG. Seems to hold up well, but I might end up adjusting the design over time if it has a weak point.