avernon

8 ms·

1.
by avernon 3y ago
Hub and spoke is primarily used to fill large planes. If you have 10-20 passenger electric planes you'd land at some random county airport, eat a hamburger or a taco while the plane recharges, then get back on the same plane and finish
2.
by avernon 4y ago
Yes, I read the underlying paper a while back. It only looks at the very first step of a Dow-like process, before any electrochemistry happens. Instead of dumping hydroxide in a tank, they expose it to hydroxide in a serpentine flow path. W
3.
by avernon 4y ago
They mention that they are doing electrochemistry. A huge portion of historical magnesium production is from electrolysis, including the only operating plant in the US. Past methods have used lime to precipitate magnesium (Dow) or evaporati
4.
by avernon 4y ago
In this case it is boil sodium, condense sodium to heat air, run air through turbine.
5.
by avernon 4y ago
Quaise wants to use old coal plants. So yes if you can drill down super deep to hot enough temperatures.
6.
by avernon 4y ago
Will your system be robust to changes in solar farm design? Like if the industry goes towards the Erthos model of installing panels on the ground without racking or trackers?
7.
by avernon 5y ago
Germany has a 220 euro/kWh feed in tariff subsidy for geothermal.
8.
by avernon 5y ago
Drilling cost is usually estimated for drilling in sedimentary rock with assumptions about how casing is run ;) It is possible that drilling 30,000' of granite has conditions that make the estimation model irrelevant. 5 km isn't r
9.
by avernon 5y ago
Tesla was founded in 2003, Rivian in 2009. So Tesla took five years to start Roadster production, while Rivian has taken 12 years until first customer deliveries. Maybe Rivian will ramp faster. Sam Korus tracks the numbers and so far Tesla
10.
by avernon 5y ago
The data is observational, which generally means you should ignore it. It is too noisy. There were those studies that showed moderate alcohol use improved health and only heavy drinkers saw detrimental health effects. The problem was that &
11.
by avernon 5y ago
The people I know with electric cars charge at home the vast majority of the time. Swapping adds a lot of complexity and cost in the pack design. NIO is doing swaps as another commenter pointed out, but more customers in China live in apart
12.
by avernon 5y ago
The problem here is the form factor of the cell as much as the chemistry. Pouch style cells are very difficult to regulate temperature in. This is a key reason why other automakers like Tesla use the small cylinder cells. Chinese companies
13.
by avernon 5y ago
This must be surprising to people, but the prairie co-evolved with ruminants like cows and buffalo. It literally dies and undergoes desertification without them. Buffalos can't breed fast enough to fill this niche for a long time. If w
14.
by avernon 5y ago
I think there are enough hackers that come from agricultural communities to give it a little boost. If I had discussed whether cows were evil or not, it looks like it might have gone to the front page! It is hard to predict consumer taste,
15.
by avernon 5y ago
Did you choose batteries for the first version to simplify the power train? Also, why use hydrogen instead of a cheaper, buoyant neutral fuel like propane? If you are worried about the carbon, you can always buy direct air capture credits.
16.
by avernon 5y ago
Is the chain open source with permission-less validators?
17.
by avernon 5y ago
austinvernon.com was taken, I had the ENS name, and I was curious about IPFS, so I used it. The system works surprisingly well, mostly thanks to Cloudflare. I've only been using it for a month, though. And its a static site with zero J
18.
by avernon 5y ago
First you need to get a metamask wallet. Then you buy some ETH for the wallet. Finally go to ens.domains and register your name. It is very friendly with IPFS, which is how I host my blog. So I put the IPNS permalink in my ENS name contract
19.
by avernon 5y ago
Thanks! If I would have known it would go to front page of Hacker News I would have had one of my construction science friends proof read it first! I've been writing for fun and to learn and have always been curious about construction
20.
by avernon 5y ago
You are 100% correct. This has been a common term in the manufacturing industry when focusing on ergonomics safety and reducing repetitive stress injuries for quite some time. The connotation has generally been positive and was a created by
21.
by avernon 5y ago
https://boomsupersonic.com/flyby/post/will-boom-supersonics-...
22.
by avernon 5y ago
The Concorde basically used afterburners. It used fuel at incredible rates. Boom is using more modern engine technology that can achieve the high cruise speeds using less fuel. This also increases effective range. So it solves 2,3, and 4. C
23.
by avernon 6y ago
Since you are piggybacking on their system, you'd save on peripheral equipment costs and operating costs, too. The subsystems surrounding these cooling water systems are immense. They need river/lake access for water, giant pumps
24.
by avernon 6y ago
I think most process engineers at an ammonia plant would be interested to hear about it because it is an elegant solution. I'd focus any pitch on working with them to make sure your process will not interfere with their process. The pe
25.
by avernon 6y ago
I love this. I started laughing when I read the description. I laughed because a Harvard physicist (funded by people like Bill Gates) had the same idea to use cooling towers for their DAC project in Carbon Engineering (linked in your post).
26.
by avernon 6y ago
I was thinking about on boarding investors, on boarding clients, generating reports for this investors, collecting payments, etc. I think the meter data is of the least importance here. I've worked with huge amounts of remote metering
27.
by avernon 6y ago
I've thought about this basic business idea a lot. And there are businesses that already exist using this model, using dollars. The problem you run into is the transaction costs and overhead. The savings are a long tail distribution si
28.
by avernon 6y ago
Eventually it will equal pay for equal work. And that pay will be set by the marginal producers in places like India or the Philippines. Differentiation is the key here, if you can do that then you have leverage no matter where you live.
29.
by avernon 6y ago
The article did say that Door Dash has focused on more suburban areas while Uber focused on more urban areas.
30.
by avernon 6y ago
There are a lot of clever ideas like this that have started getting branded under "regenerative agriculture". It is most in use on land that is already pretty degraded, dry, or has irregular rainfall. It has also had more populari

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