leoedin

24 ms·

331.
by leoedin 3y ago
> I think another discouraging aspect is HTML CSS are so huge and bloated at this point that few people can implement a "reader" for EPUB/HTML. It's basically "go implement a new browser". It makes one think
332.
by leoedin 3y ago
What does "efficient" mean in this context? Maybe plants don't produce anywhere near the same number of kgs of CO2 for each Joule of sunlight, but that doesn't really matter. Plants are self-replicating machines which pr
333.
by leoedin 3y ago
> Obviously, the efficiency of the cycle is lower when starting from air instead of from pure carbon dioxide, but the input energy is unlimited, as it comes from solar or wind energy. What sort of energy inputs are required for a kg of C
334.
by leoedin 3y ago
I think everyone understands the necessity of oil & gas - but what's becoming clear is that some oil & gas companies are acting like tobacco companies have in the past - they're intentionally trying to discredit climate ch
335.
by leoedin 3y ago
Your numbers are way off - EV efficiency isn't measured in kWh/mile but miles/kWh. If the average EV gets 3.5 miles/kWh, then those 20 miles per day need ~6 kWh. That's 600 kWh a night for your 100 cars, which over
336.
by leoedin 3y ago
> “EVs are more competitive in cities with high gasoline prices, low electricity prices, moderate climates, and direct purchase incentives, and for users with home charging access, time-of-use electricity pricing, and high annual mileage
337.
by leoedin 3y ago
That's interesting. I wonder if that's part of the reason why electric car uptake has been so low in Italy? Most houses here in the UK have enough capacity to run a 7kW charger alongside other household stuff. My house electricity
338.
by leoedin 3y ago
That seems really low. Most houses in the UK have a 60 - 100A supply. Just my stove alone can draw about 7.3kW - about 32A.
339.
by leoedin 3y ago
I've had 10A fused cables before - IEC leads are pretty common. https://www.cablewarehouse.co.uk/10a-uk-plug-to-iec-c13-main... for example.
340.
by leoedin 3y ago
Ring circuits may have made sense in the past, but they really don't any more. It's basically impossible to test a ring circuit in place - you have to break the connection somewhere to ensure the ring is complete. That's a hu
341.
by leoedin 3y ago
There's not really much those devices can do - they're just metering, and don't have an active internet connection. WiFi isn't a bad choice of communications protocol.
342.
by leoedin 3y ago
Other airlines have switched from exclusively Boeing to exclusively Airbus - eg Easyjet did in the early 2000s, and operated a mixed fleet for about a decade. https://simpleflying.com/easyjet-boeing-to-airbus/ Obviousl
343.
by leoedin 3y ago
> Horizon cost £2.4bn and was apparently developed by a team of eight, three of whom were described by the team lead as "incompetent." Where did most of that money go? Was there 8000 middle managers?
344.
by leoedin 3y ago
There's basically 2 classes of airline in Europe. "Low cost" airlines like RyanAir and Easyjet are constantly finding new ways to charge extra for service, while "traditional" airlines like BA are playing catchup by
345.
by leoedin 3y ago
I don't agree at all. The kinds of regulations that define how buildings are made are all pretty compatible with traditional building techniques. Obviously modern houses need to have insulation and air tightness, but that's not in
346.
by leoedin 3y ago
> But instead of spending the money on a house big enough to host those dinner parties, you could host them at a fancy restaurant, with better food and the ability to spend the entire evening with the guests instead of in the kitchen. Ul
347.
by leoedin 3y ago
It seems that the problems he had were in summer. There's many climates where HRVs are only really needed in winter - in which case those problems wouldn't happen. Basically, as long as the outside air is drier than the inside air
348.
by leoedin 3y ago
This seems like the biggest failure point. Humans are basically unable to prepare for major but rare events (eg the pandemic response). Day to day politicing always wins, and when the problem is suddenly on top of us we've got nothing.
349.
by leoedin 3y ago
Surely anyone on earth who has the technical ability to deflect an asteroid precisely to hit one part of the planet, would also have the technical ability to just bomb that part of the planet directly - with much lower risk of accidentally
350.
by leoedin 3y ago
If your food is burning, you can always lift the pan off the stove. It's pretty rare that I'm cooking something that is 10 seconds away from being burnt anyway. Saying that, I suspect there's a whole load of manufacturers who
351.
by leoedin 3y ago
I have had a couple of AEG capacitive touch stoves, and they've been pretty good. You do need to have a tea towel to hand to aggressively wipe any spills near the controls - but the stove detects if the controls are wet, locks them out
352.
by leoedin 3y ago
Why do vertical farms use less water than greenhouses? I can see why they'd use less water than outdoor farming - the water is lost to the atmosphere. But surely whatever mechanism a vertical farm uses for collecting and recycling wate
353.
by leoedin 3y ago
If you like this, there's an excellent 30 minute video following the Dacia Duster production line - https://youtu.be/32eWkuIHLoE?si=T-gud6AG1PCD1gep It's much more relaxed, with little commentary - and really show
354.
by leoedin 3y ago
The problem is that heat pumps exist, so resistive heating is never the best option. An aluminium smelting at home heating solution would have a maximum CoP of 2 (as you're reducing the energy usage of the smelter by the same amount).
355.
by leoedin 3y ago
> I do not consider burning wood to be sustainable You can't really make such a broad statement. Sure, burning wood isn't a sustainable solution for everyone everywhere, but there's plenty of situations where it's the
356.
by leoedin 3y ago
These bodies are British.
357.
by leoedin 3y ago
You completely missed my point. How can anyone possibly ask the descendants of 500+ year old plague victims whether they consent to research on their teeth. Do you just go round knocking on every door in a 10 mile radius? I'm British,
358.
by leoedin 3y ago
That part jumped out at me. Why on earth do they need the permission of the descendents of someone who lived 500+ years ago? And how on earth are they even going to get it? Surely even if one guy says it's ok (and you can prove he&#x27
359.
by leoedin 3y ago
This is 13 years old. Has there been any development since? It sounds a lot like nonsense. It seems the proposed mechanism is completely testable. How much stronger are RF signals just above a bed than in free air? I would have thought that
360.
by leoedin 3y ago
The safety certifications are particularly interesting. It's a lot of work to develop "safe software" - that is software that is developed according to a safety standard and certified to a "safety integrity level".

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