colourlesspony

I need to get some gravel bike tires. 25c where a bit sketchy.

Interesting. I wear a face mask while cycling. I live a dry and dusty area and used to get sinus infections frequently. I haven't had one since I starting wearing a mask while biking in 2020.

Man that eee pc, disks, and ipod are an instant nostalgia trigger for me. I miss my net books. Not enough to go buy one though.

I feel like linux users benefit the most from arm since we can build our software natively for arm with access to the source code.

Yes, I love the place. Do you mean Portal AZ? That place is worth going on it's own. A great trip from Tucson --> Fair banks ghost town --> White water draw (during crane season) --> Chiricahua --> over the mountain to Portal AZ.

I did the big loop with my dad a while ago during monsoon season. It was super hot and probably dangerous but the Big monsoon storm clouds over the rocks was fantastic.

There shtick is privacy. They are selling privacy oriented machines which is a value add for people who need device privacy but don't have the bandwidth to to setup and audit everything themselves. The service they are selling is more privacy then value budget hardware.

I haven't looked at there stuff in while. They have really compelling devices. There a bit too pricey for me at the moment.

I'm very interested in these.

I didn't think about hydrogen powered shipping container ships. That sounds like a good use case.

My main issue with hydrogen is that most of it is produced using some natural gas / fossil fuel thing I don't understand. AKA Dirty hydrogen. Producing hydrogen using green tech is super inefficient compared to storing green energy in batteries. Personally, I think better battery tech like sodium Ion that uses cheap and recyclable materials are the better option for most applications.

I do have a personal conspiracy theory that fossil fuel is pushing for hydrogen to slow green tech epically since the cheap way to make hydrogen is with fossil fuels.

Another thing about hydrogen is storage and transportation. To store it long term you need to cool it a liquid form which is really hard to do. Also, current hydrogen fuel cell are low efficiency and low power density. That's why the toyota miria uses a fuel cell to charge a battery which powers the car.Tthe fuel cell can't put out high current.

Most of what I know about hydrogen tech came from the aging wheels video about Mirai. So I might be super wrong about everything. I do recommend giving it a watch though: https://www.youtube.com/watch?v=rtZQLUtckS4

Yeah, it blew my mind that the Toyota Mirai's hydrogen tanks are pressurized to 10,000 psi. To store a decent amount of hydrogen you need compress it to crazy high pressure or cool it with liquid helium or some other exotic extreme cooling. The thing about hydrogen that always confused me is that hydrogen is very energy dense but it physically not very dense.

Maybe? Warning Half-asses napkin math here but there are 286 KJ in a gram of hydrogen. So that 20 grams has 5720 KJ which converted to Watt hours is 1589 Wh. From my googling hydrogen fuel cells are 40 - 60 percent efficient. So half that to 750 Wh. Which is comparable to most e-bikes rated for 20Km of range. There are some issues with hydrogen. Converting water to hydrgron is only 70-80% efficient and converting that hydrogen to electricity is 30-60 percent efficient. Compare that to li-ion battery which can be charged at close to 99%. That mean hydrogen waste so much more electricity. Which is why I'm a hydrogen hater. I much prefer putting solar energy directly into batteries instead of the converting it hydrogen and back again at great lost.

That look really good!