danhor

22 ms·

241.
by danhor 5y ago
Most modern (GaN) USB-C chargers are already highly efficient. Since USB-C PD can only be used as a point-to-point connection (since a voltage level is negotiated), a sane architecture would likely use a high voltage (>100V to minimize r
242.
by danhor 5y ago
AFAIK wind turbines, as opposed to conventional turbines in power plants, don't directly connect to the 60Hz Grid but go through DC and an inverter. This is done so they can efficiently work at different speeds at not just a few mechan
243.
by danhor 5y ago
The programming interface and the bootloader in rom setup is more-or-less standard in the ARM microcontroller world. For programming the RP2040 you can use any SWD debugging probes (which you can also use to debug the chip, single stepping,
244.
by danhor 5y ago
If prosperous (as that's usually a match for a low chance of armed conflicht) nations mostly expand to non-fossil energy sources that aren't available/viable for developing/poorer nations, this is an issue since their po
245.
by danhor 5y ago
Regarding the last point: Together with the 20 year deprecation cycle, an expansion* of heat pumps makes sense now in anticipation of higher buildup of renewables as well as creating additional electricity demand, making construction of new
246.
by danhor 5y ago
The issue is, that in a traditional electrical system, you need both base load and dispatchable power plants. And while nuclear power plants work as base load, they're really bad for dispatchable power, both economically and in how the
247.
by danhor 5y ago
I want experience, I don't want "experience" (usually)
248.
by danhor 5y ago
Are you sure about that? The general figures I see are that around 2% of land for wind energy should be very sufficient, which would not need displacing of existing housing and certainly no construction in city parks.
249.
by danhor 5y ago
France uses a lot more electrical heating than neighbouring countries, but gas (35%) and oil (10%) combined are more than their electrical heating (41%). Shutting of a large part of gas supplies would still be a problem. https://
250.
by danhor 5y ago
No. Russia supplies around 47% of imported gas, around 41% of total gas. Shutting down only electricity power plants reduces gas usage by 12%. Not using it for electricity reduces it ~21% (going to be hard, because of combined electricity &
251.
by danhor 5y ago
If my calculations are correct, only ~21% of gas used in europe is used for electricity, so halving the dependency. If combined power and heat plants can't be shut down (because they can't be replaced that based and still need to
252.
by danhor 5y ago
I think your take for solving this is somewhat wrong. The big issue isn't gas for electricity (only around 14% of gas in Germany is used for electricity) but gas for heating as well as industry, fertilizer and the likes. This means the
253.
by danhor 5y ago
Another exception is the esp32-c3, which includes a jtag debugger inside the chip (not on board, inside the same die)
254.
by danhor 5y ago
(all numbers for germany) Only ~14% of gas used is used for electrical energy. About 50% of the gas we use is imported from russia. 77% of the gas is used by households for heating (and also cooking, but that's negliable) and industry
255.
by danhor 5y ago
Regarding overhead wires for double stacked cars, India has a freight corridor with very high overhead wires: https://en.wikipedia.org/wiki/Dedicated_Freight_Corridor_Cor... This would probably be the way to go if the
256.
by danhor 5y ago
This assumption leads to the conclusion that only services that reside in the same jurisdiction (EU, USA, ...) can be used if legal protection from the state is desired. If legal protection from the state is enforced (even for other states)
257.
by danhor 5y ago
You can just set the sample count really high (up to 1 trillion). The samples are not compressed in RAM, so the maximal capture time is determined by the size. For 8 GiG and 24 MHz this means you can capture for ~6 minutes. I tend to simply
258.
by danhor 5y ago
There's no need to go via the battery. The electrical energy from the generator is directly used by the motor, only the excess energy (if there is any) gets stored in the battery. Both generators and motors can be very efficient (and o
259.
by danhor 5y ago
The big down side is of course the limited sample memory. Many (especially the very popular, because cheap, fx2la) pc-based ones simply stream the data, which enables the use of all PC RAM and essentially infinite capture times.
260.
by danhor 5y ago
> All over Europe and in much of the rest of the world, public transit is operated by private companies. (Usually with great results.) Speaking for Europe, primarily Germany: The infrastructure is usually public (or via a company, owned
261.
by danhor 5y ago
> Firstly, I find it pretty surprising that the author would want to remove the drivetrain. The Author is arguing for replacing the chain with power wires, by generating power from pedaling and feeding it into the motor (with efficiency
262.
by danhor 5y ago
Biontech (and probably all other vaccine manufacturers) are working on it and expect to have it available in march: https://investors.biontech.de/news-releases/news-release-det... The omicron surge is happening now s
263.
by danhor 5y ago
Includes mainline Trains, Trams, Subways, Busses for many systems around the world. Also time-traveling & fast forward, all based on GTFS data provided by the transit systems (one of the most useful standards to come from google).
264.
by danhor 5y ago
For cooking induction plates are much more efficient, transferring 90% of the energy as opposed to ~50% with gas stoves. Together with a gas plant efficiency of ~50%, they comes close in efficiency. Gas stoves still come out on top price-wi
265.
by danhor 5y ago
If only the binary is emulated by QEMU and sharing the same Kernel, this should work fine. Similar to what Apple is doing with their x86-to-ARM tech.
266.
by danhor 5y ago
That's the case for most suburban areas in the US. In places like Germany it's still not great, but there are many more provisions for other modes of travel especially as a pedestrian and they're not unused. The Netherlands h
267.
by danhor 5y ago
It's already possible to self organize car sharing, with a spiffy app, insurance rating systems and . But keeping the car in good shape and checking it, as well as the risk on non-availability (which might get better with a self-drivin
268.
by danhor 5y ago
> For example, automated cars would allow you to park your car outside of the city, but still have car driving to get places. People aren't limited by available parking anymore, more cars will just drive idly, increasing the traffic
269.
by danhor 5y ago
If you block scripts, the redirect doesn't happen. Very weird.
270.
by danhor 5y ago
Even worse, they sometimes try really hard to be indistingushable. I recently got a mail from an insurance company that they were upgrading the login method (red flag). The domain in the link contained wasn't the main domain but a sepa

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