lefra

7 ms·

91.
by lefra 8mo ago
The first working transistor was centimeter-scale, now billions of them fit in that space. The first useful internal combustion engines were room-sized, now they fit on a moped. The truck-sized hole in your argument is talking about "t
92.
by lefra 9mo ago
100 km/h is slow compared to passenger train (even non-high-speed ones). Depending on how packed the schedule is, it might not be possible to analyse track during the day without causing backups.
93.
by lefra 9mo ago
A million alternatives is peanuts. Restricting the search space to text files with 37 possible symbols (letters, numbers, space), a million different files can be generated with just 4 symbols. A trillion is 8 symbols. You still haven'
94.
by lefra 9mo ago
I double checked because these were not the prices I had in mind. After looking through the options, I think that's because the designs I did quotations for had 0.2mm holes. This is standard for Eurocircuits, but high precision for JL
95.
by lefra 9mo ago
For that, there's a company named eurocircuits. Slightly more expensive than JLCPCB, but not 30x.
96.
by lefra 9mo ago
My laptop has one of these ethernet ports that half close when not in use. It doesn't work anymore because someone mistook it for the USB port that's right next to it when distractingly plugging their keyboard in.
97.
by lefra 9mo ago
I agree with the sentiment, but what stops the government designating annoying people or companies as russian (also see "foreign agent" and "matter of national security")? Also, am I on the hook because my wife's gr
98.
by lefra 9mo ago
They have an ion thruster to compensate for atmospheric drag.
99.
by lefra 9mo ago
The french government has been heavily subsidizing private R&D (up to 50% of the cost, including engineer salaries). It was relatively easy to create a moonshot project worth a few millions, and have the taxpayer pay for half of it. Th
100.
by lefra 9mo ago
US grid carbon intensity is 0.384 gCO2/kWh (source: ourworldindata). US datacenter energy use in 2023: 176 TWh (excluding crypto, source US congress). How much of that is AI, I couldn't find. So that's 67Mt CO2, I hope I have
101.
by lefra 9mo ago
The ocean has already absorbed 30% of the CO2 humanity has emitted. It causes issues: ocean acidity rises, which reduces plankton ability to grow. Plankton being the base of the ocean food chain, all ocean life gets impacted. You'd nee
102.
by lefra 10mo ago
Silicon sensors (which is what you'll get in all visible-light cameras as far as I know) are all very sensitive to near-IR. Their peak sensitivity is around 900nm. The difference between cameras that can see or not see IR is the qualit
103.
by lefra 10mo ago
I program FPGAs professionally (Xilinx Zynq, VHDL). I agree that the tool's GUI is atrocious, the actual way to use it is to write everything in TCL scripts, and invoke the tools through a Makefile. I only open the GUI to look at timin