awjlogan

7 ms·

31.
by awjlogan 1y ago
Much of the actual day to day work is. Typically graduate students, so they’ll be 22-26. That’s not a critique of their intelligence or potential. Students get progressively more experienced of course, but professors aren’t writing code mos
32.
by awjlogan 1y ago
Do users share some “responsibility” (for want of a better word) as well? If people were happy to share their experiences to personal, or at least smaller, groups rather than with some implicit desire to be widely acknowledged then a portio
33.
by awjlogan 1y ago
Because conversion to chemical storage and then back is very inefficient. Also ammonia, specifically, is highly toxic and nasty to handle.
34.
by awjlogan 1y ago
Europe (as a whole) gives more money absolutely and multiples more in proportion to national income than the US. The US does (or did) have very good distribution networks, and that’s not liquid in a monetary sense. I would encourage you to
35.
by awjlogan 1y ago
The same could, of course, be said about the individual who gleefully implemented this cut.
36.
by awjlogan 1y ago
I always enjoyed Colonization a lot more than the Civ series. Maybe it was the more constrained and narrative setting?
37.
by awjlogan 2y ago
Compare the yields in a typical JACS (or any high end journal) paper versus those in OrgSyn and I think it's pretty clear that yields in many papers are more than exaggerated. It's a single untraceable number and the outcome o
38.
by awjlogan 2y ago
Coal ash is not classed as radioactive and it was abundant and cheap as a useless by-product of burning coal. The point is more that things classed as "low level" waste from nuclear are most often completely harmless, just regulat
39.
by awjlogan 2y ago
Fun fact: in the UK low risk nuclear plant waste (for example workers' overalls) is bundled up and buried with... coal plant ash. Which is, of course, far more radioactive than the waste it is supposed to be protecting against. This wa
40.
by awjlogan 2y ago
Wait until you look at the leakage current of capacitors..! Very poorly specified, if at all, and can actually swamp the consumption of active components in these low or sub-microamp situations. The dual voltage rail that msanford describ
41.
by awjlogan 2y ago
ESP's deep sleep is not great - the datasheet for the C3 says 5 uA. That's an order of magnitude above low power microcontrollers (e.g. ATSAML), and two orders of magnitude above an ultra low power timer. Not horrendous, but highe
42.
by awjlogan 2y ago
This was a really interesting read, thanks.
43.
by awjlogan 2y ago
> But you must know what you intend to do when designing the MCU, and history shows (and some of the questioning here also shows) that this isn’t the case. As you point out expected lifespans are long, so what is a designer to do? Design
44.
by awjlogan 2y ago
No, still true - you’re never going to beat the determinism, size, and power of a few flops and some logic to drive a common interface directly compared to a full core with architectural state and memory. E.g., just to enter an interrupt is
45.
by awjlogan 2y ago
Not wrong, especially for microcontrollers where micro/nanosecond determinism may be important - software running on general purpose cores is not suitable for that. They can also be orders of magnitude more energy efficient than runnin
46.
by awjlogan 2y ago
They are available in that quantity. They do make sense up to around that number, although the around 1K is the sweet spot. Laying out and certifying a high speed design (not just a noddy A9 with DDR2) is expensive and it's all NRE cos
47.
by awjlogan 2y ago
No, it's a huge amount relative to the nutrition it actually provides. There is so much terrible (by any metric apart from maybe direct monetary cost) meat consumed and there are vested interests in a lot of industries to maintain that
48.
by awjlogan 2y ago
There’s a big difference between supporting food security and subsidising otherwise unviable land usage and farming practices. In the UK, there are subsidies for upland farming for sheep with produces a negligible amount of food at high cos
49.
by awjlogan 2y ago
I would gently encourage you to engage with the topic rather than a puerile dismissal as “farting cows”. Agriculture is one of the main drivers of climate change (~30%), and and also has associated land usage implications. Ruminants (“farti
50.
by awjlogan 2y ago
A lot of “farmland” is unproductive and kept in usage only by heavy subsidies. Additionally, I think a more important/interesting part of the article is taxation of livestock - you reduce the land needed significantly when the amount o
51.
Living Planet Report 2024(livingplanet.panda.org)
2 points by awjlogan 2y ago|0 comments
52.
by awjlogan 2y ago
She chose a route that was "fun" (at least, for some value of fun when riding 270 km a day!), rather than the shortest/easiest route (it's in the article). As it is probably a once in a lifetime trip, she wanted to enjoy
53.
by awjlogan 2y ago
The TI Power Designer[0] is a great resource. Obviously it will only show you TI parts, but it's very helpful to get a base design. You can filter by complexity (roughly BoM count), size, cost etc based on the parameters (input voltage
54.
by awjlogan 3y ago
Arm v8.4 onwards has exactly this ( https://docs.kernel.org/arch/arm64/amu.html ). It counts the number of (active) cycles where instructions can't be dispatched while waiting for data. There can be a very high
55.
by awjlogan 3y ago
https://www.orbitalmarine.com/ is one company working on it. As another comment states, working offshore unbelievably challenging (corrosion++, weather, position etc). Orbital's innovation is that the rotors move to
56.
by awjlogan 3y ago
Gerrymandering is different to the system itself getting less democratic. The UK Electoral Commission is meant to be non-political in setting boundaries. Obviously, there will be pressure applied for advantage but, frankly, that's how
57.
by awjlogan 3y ago
You could also point out that the SNP got 3.9% of the total vote and 7.8% of the total seats. I don't have a solution to this, the game has to be played under the existing rules, but I don't think this means it's "less d
58.
by awjlogan 3y ago
OrgSyn was/is the absolute gold standard, and partly why I ended up quitting academic organic chemistry. A key metric in organic chemistry is yield, ie. how much of A turns into B. Top journals generally required 15+ examples of yiel
59.
by awjlogan 3y ago
Also, the vast majority of people consume rather than create, and their phone is now their primary device for everything - communication, whatever flavour of social media, banking... For tapping and staring at something for N hours a da
60.
by awjlogan 3y ago
Money, time, and perceived/realised risk of failure (to both the end user, and the supplier). Any time you have enough of those, the scrutiny will increase. If you're making a chicken feeder IoT device, the amount of marginal QA c

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