danhor

23 ms·

211.
by danhor 4y ago
Since termux just uses regular unix applications, adapting them to use JNI sounds like a world of pain.
212.
by danhor 4y ago
Looking at german Stadtbahn systems (trams with a evtensive dedicated RoW & central tunnels, but still a lot of street-running), they archieve headways down to 2 minutes, e.g. in on of the central sections of the Stuttgart Stadtbahn. Th
213.
by danhor 4y ago
It's even good from an environmental perspective if electricity is not all low emissions. In fact, even with the current energy mix in germany, with a large portion of coal. ICEs are very inefficient at converting gas to movement, so
214.
by danhor 4y ago
Ah, the good 'ol legacy USB issue (for anything under 1.5A). The standard provides a way for simple devices (page 218, PSD), to just draw up to 500mA [0]. But TBH, legacy USB charging is such a mess, I'd just always assume 1.5A a
215.
by danhor 4y ago
First of all, 8 pins are used for power delivery for just VBUS & GND. Furthermore, you need the two CC pins or otherwise you won't get any voltage from USB-C chargers. USB 2.0 data pins are needed for backward compatible charging (
216.
by danhor 4y ago
That's ... exactly what happened? https://www.usb.org/sites/default/files/usb_type-c_cable_pow... (for an older example without cable ratings: https://www.usb.org/sites/default/
217.
by danhor 4y ago
But the two CC line resistors are spec-conform? That's how 5V sinks are supposed to work. I agree that the whole USB PD stack is way over complicated, I still don't get why the electrical layer and the on-the-wire protocol is so c
218.
by danhor 4y ago
The lowest spec for cables requires 5 wires (CC, 2 * USB 2.0, GND, PWR) and a rating of 3A. CC pins are required for USB-C, if they're left out most devices won't charge over it [1]. 3A is (in my opinion) a reasonable choice, sinc
219.
by danhor 4y ago
Strongly doubt it. If it's sold in retail and costs 60$, the BOM needs to be less than 20$. It's hard to get just an adequate FPGA suitable for the task at that price, and there are still a lot more components needed. I expect the
220.
by danhor 4y ago
No, the regenerative breaking isn't the reason why electric vehicles are more efficient. Traditional ICE are very inefficient, only converting 20% of chemical energy to kinetic energy (with the rest being turned to heat). Diesels are
221.
by danhor 4y ago
For heating the promise of heat pumps is even greater, with "efficiency" of over 300% (possible since the heat energy is transferred from outside). This means it's even more efficient to just burn gas for electricity and use
222.
by danhor 4y ago
Even self-driving coaches will have congestion issues. Even if there are dedicated travel lanes and all vehicles are connected, capacity will (probably) at most double (going down much further as speeds increase, since a safe braking distan
223.
by danhor 4y ago
While I also dislike bloated websites, I suspect the climate impact is rather neglible. The internet as a whole needs a few percent of global power, and the vast majority of that is going to be (video) streaming. Most heavy JS is going to b
224.
by danhor 4y ago
Most nuclear power plants are designed for constant power output, so they still need some other thing (like batteries?). Some are engineered for changing their output power quicker, but that means higher costs (lower usage), more complicate
225.
by danhor 4y ago
You could not load some modes if the file you're loading is large, in the somewhat extreme case fundamental-mode usually performs fine.
226.
by danhor 4y ago
Often these are company cars (with private use allowed), where gas is paid for by the company
227.
by danhor 4y ago
> They all paired fine as headphones, but the microphones never worked. To me that doesn't sound like a hardware problem. I need to switch the codec & profile[0] in pavucontrol to use the microphones, which is not done automatic
228.
by danhor 5y ago
Gerhard Schröder ("affectionately" called Gasherd) was the chancellor until 2005, not specifically in charge of energy policy. He also hasn't been politically in charge of anything for the last 15 years. The nuclear shutdown
229.
by danhor 5y ago
An important thing is also that reddit still doesn't require a mail address. Just click continue on the signup form without filling in the mail and bypass the dark pattern.
230.
by danhor 5y ago
Wouldn't plugging into district heating be a simple way to harness the thermal energy?
231.
by danhor 5y ago
Bluetooth Speakers don't directly use the compressed format, but another format (in the worst case SBC) recompressed by the player. I've never seen one that supported MP3 compression. Or did you mean native playback from sd cards&
232.
by danhor 5y ago
The Wikipedia article implies a consensus on electrification and budgetary issues for Boston, but Alon Levy is a better source and I doubt anything major changed in that time frame (even if according to the wikipedia page first test runs ar
233.
by danhor 5y ago
Electrified Rail is important for great passenger rail, by nature of it's much higher acceleration and lower cost for increased service. This is part of great rail infrastructure for me and much of the electrification in the USA has be
234.
by danhor 5y ago
Adding up the metropolitan areas around the NE corridor, there are ~40 Million people living there, around half of Germany. The NE corridor includes 611km of electrified track (or 1500km for all electrified rail in the US, adding up all the
235.
by danhor 5y ago
Germany has very little private competition in the longer distance sector (>2h) and almost no private infrastructure. Both are controlled by the state owned DB and there are ambitions to make the infrastructure part even less profit orie
236.
by danhor 5y ago
> Or should we realize how silly this all is? Why? It's an important question to have data on. It's essential to designing neighborhoods > The solution has always been to physically isolate pedestrian traffic from vehicles a
237.
by danhor 5y ago
Why? The issue with speeding is that ... you're driving faster. And as I've laid (at least somewhat) the speed limits the US commonly employs are sane as a choice and also very common in other countries. A huge issue is that ameri
238.
by danhor 5y ago
I mean, speed is the obvious issue with road safety. It increases stopping distance by a large amount, at 50km/h (~30mph) you're not even stopping while you already at a standstill at 30km/h (~20mph). If everyone drove at 1
239.
by danhor 5y ago
Well, almost all reasons to enforce the speed limit (playing kids, pedestrians) have been eliminated over the years. But increasing the speed limit now will probably not reduce speeding, since residential roads in the US are way overbuilt.
240.
by danhor 5y ago
One of the most common deaths in the US is from traffic accidents and 26% of all fatalities have speeding as a contributing factor or ~10000 per year ( https://www.nhtsa.gov/risky-driving/speeding ).

More ›