aurelwu

5 ms·

1.
by aurelwu 19d ago
I'd list it as "Non-Development certain", but objectively you might be right.
2.
by aurelwu 19d ago
your page is more optimistic about KSP2 though -- sadly I think wrongly.
3.
by aurelwu 2mo ago
Take a look at indoorco2map.com and you will find plenty of places in Germany with bad air measured in a crowd data collection effort. Most notably doctor‘s offices are often very bad. Many supermarkets too. Schools are not well measurable
4.
by aurelwu 3mo ago
(commented this on the other post which gained no traction at all already:) It's good to see more money flowing towards this totally underfunded area. However I think it's an odd choice of them to focus on filtration, UV-inactivat
5.
by aurelwu 3mo ago
It's good to see more money flowing towards this totally underfunded area. However I think it's an odd choice of them to focus on filtration, UV-inactivation and other things and at least from the wording on the website not on ven
6.
by aurelwu 10mo ago
Anyone can already buy those certificates - but as its an artificial market where rules can be changed politically it's actually way more resistant to such things than regular markets, so if those hedge funds feel like they want to los
7.
by aurelwu 1y ago
I do think even the most amateur of amateurs would be able to recognize instantly that a chess board with 64 pieces on it is a invalid game state.
8.
by aurelwu 1y ago
you can get a ESP32 and a CO2-Sensor, easiest would be to use a development kit like a m5-stickC and the Sensirion SCD41 and with some small arduino scripts you are good to go to send the data via WLAN or BLE for something like 70€. Can be
9.
by aurelwu 1y ago
Hi, I developed indoorco2map.com which is a an app-supported crowd-data-science project where users can submit CO2-Data they measure when going shopping or to restaurants or wherever using a simple-to-use App . I'd like to support your
10.
Show HN: A crowd-data collection Project about Indoor Air Quality (CO2)(indoorco2map.com)
3 points by aurelwu 1y ago|0 comments
11.
by aurelwu 3y ago
I don't know if it's been the first time in fiction where that concept was described but in Heinleins "The Moon is a harsh Mistress" this was what the Moon Colonists did.
12.
by aurelwu 3y ago
Some non-orthodox chess variants have a piece which combines Queen+Knight: https://en.wikipedia.org/wiki/Amazon_(chess) very old variants often had such compound pieces like for example: https://en.wikipedia
13.
by aurelwu 3y ago
21 reactors under construction even with a short build time of 7 years is just 3 finished per year, and with China having ~15x the population of Germany that would amount to 0,2 reactors finishing per year in Germany. Multiplied with 1,4 GW
14.
by aurelwu 3y ago
Business associations do however.
15.
by aurelwu 3y ago
the lines are what shows the energy amount, the boxes have a minimal size for readability and are acting as the legend of the chart.
16.
by aurelwu 4y ago
end-of-life Battery usage will compete with recycling them and especially as material needed per kWh is going to keep going down it might be more economical to recycle them into a new battery - it also depends on costs of raw materials. I&#
17.
by aurelwu 4y ago
twitter policy talks about private information, but they seem to also take issue with public information (which is made somewhat more accessible if put into a tweet but still was public before. edit: seems to be as exploitable as ChatGPT (e
18.
by aurelwu 5y ago
it's rather strange they suggest red-green as an alternative given that this combination is affected by the most common form of color-weakness/blindness.
19.
by aurelwu 6y ago
air conditioning is one of the smallest issues (somewhat ironically), as the demand from it is the highest when sun is shining, meaning there is lots of PV Electricity available (and with roof PV no burden on the grid either). Heat Pumps in
20.
by aurelwu 6y ago
so what you are saying is that there is a market for a drone which recharges wireless security cameras?
21.
by aurelwu 6y ago
The upper value of 12acres/hr for $150/hr translates into $12,5/acre, which isn't too far off for an emerging technology if the value is accurate.
22.
by aurelwu 6y ago
https://unfccc.int/sites/default/files/resource/28_EASAC%20R... This document from EASAC (European Academies' Science Advisory Council) is a pretty nice and well sourced overview of many (not all) d
23.
by aurelwu 6y ago
Direct reduction of iron ore with Hydrogen can eliminate most of the process emissions of smelting: https://en.wikipedia.org/wiki/Direct_reduced_iron . Production of secondary steel (recycled steel) using electric arc
24.
by aurelwu 6y ago
Great work, a friend of mine is molecular biologist and she is furious about how in germany they don't use alternative methods for RNA Extraction like Phenol/Chloroform (labor intensive but no shortage of material) / SPRI (wi
25.
by aurelwu 7y ago
The statement from the hospital management boggles my mind: "In addition, there are different parts to a patient bill. One part is what the hospital charges the insurance company, one part is what the insurance company eventually pays
26.
by aurelwu 7y ago
China has a flu every year, their reaction to the current outbreak is vastly different from a flu. That suggests that they consider it a bigger threat than the flu.
27.
by aurelwu 7y ago
iron seeding can increase amount of cyanobacteria which recently have been identified as potentially being methanogenic, thus this might not be a good idea. Unintended side effects of most geoengineering solutions are a big problem - some t
28.
by aurelwu 7y ago
I'm not sure if that has any meaning, as I know nothing about lasers, but 4.6 * 3 = 13.8 , could be pure coincidence.
29.
by aurelwu 7y ago
That's vastly inaccurate. It is correct for household prices, but for energy intensive industry the difference is much smaller, something around 2 cents.
30.
by aurelwu 7y ago
Syn-fuels are never carbon neutral, you always have CH4 Emissions when producing, transporting,storing or burning fuel (and N2O too if you burn the fuel using air and not pure oxygen). CH4 is not only a rather potent GHG, it also oxidizes t

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