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New
The latest blog posts to take off on Hacker News. 4,807 posts.
Hardware & Electronics
Any year
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Air Quality Monitors from USD $169 to $6k use the same low-cost PM Modules
Why monitors priced from hundreds to thousands of dollars often use the same low-cost PM modules, and what that means for performance claims.
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Tempest: Transmit Radio Waves via a PC Video Card with No Extra Hardware
the quality of the music is not exactly what you are used to :-) but at least it works!
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LLM Falcon 180B Needs 720GB RAM to Run
Yes, if you have enough CPU RAM
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Apple fucked us on right to repair (again)
Right to repair has no cannier, more dedicated adversary than Apple, a company whose most innovative work is dreaming up new ways to sneakily sabotage electronics repair while claiming to be a caring environmental steward, a lie that covers up the mountains of e-waste that Apple dooms our descendants to wade through.
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Turning an old car into a powerful generator
See how an old car is turned into a powerful generator, a DIY project that reuses a vehicle to produce electricity.
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Headsets Delayed into 2024
Due to capital constraints, we are unable to meet our delivery deadline by EOY 2023 for Simula One preorders, and are pushing our optimistic shipdate to Q2 2024 (with a pessimistic ship date of Q4 2024 ). In this post we discuss our capital situation, mistakes we made, Review Unit testimonials, & investor feedback.
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iPhone 15 Pro facts and estimates
A couple of things I learned and one reasonable guess.
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Chromebooks will get 10 years of automatic updates
Chromebooks are getting 10 years of automatic updates, plus new features to help devices last longer.
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A CD Spectrometer (2006)
A simple spectrometer can be built from a CD and a box. Cut a slit on one side of the box. Place the CD on the other side with about 60 degree angle. Look down into the openning on the box. The slit should not be too wide, otherwise the spectrum lines will be blurred. It should not be too narrow either, otherwise the…
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iPhone 12 withdrawn from French market for non-compliance with EU regulation
As market surveillance authority for radio equipment and responsible for controlling public exposure to electromagnetic fields, the ANFR runs inspections on mobile phones placed on the French market. 141 mobile phones, including Apple’s iPhone 12, have recently been tested to check compliance with limit SAR values…
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iPhone 15 and iPhone 15 Plus
Apple today announced iPhone 15 and iPhone 15 Plus, featuring an industry-first color-infused back glass with a stunning, textured matte finish.
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New world record with an electric racing car: From 0 to 100 in 0.956 seconds
Students from ETH Zurich and Lucerne University of Applied Sciences and Arts have broken the previous world record for acceleration with their hand-built electric racing car, mythen. The vehicle accelerated from zero to 100 km/h in 0.956 seconds over a distance of 12.3 metres.
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Sony develops energy harvesting module from electromagnetic wave noise
Sony Semiconductor Solutions Group develops device business which includes Micro display, LSIs, and Semiconductor Laser, in focusing on Image Sensor.
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86Box v4.0
Release for August 2023.
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Hacking the Book8088 for better accuracy
The Book8088 is an interesting little machine. It is essentially a 1980's computer in a laptop form factor. With apologies to Sergey Kiselev...
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HDMI ISA graphics card for vintage PCs by improving the Graphics Gremlin
HDMI is a relatively modern video connector we take for granted on modern PCs and monitors. Now vintage PCs can join in the fun too with a native connection to modern HDMI monitors without any additional adapter. (A production run has been made for this board. You can contact explit[at]mailbox[dot]org if you wish to…
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RISC-V SBI and the full boot process
Detailed explanation on how RISC-V boot process works and what role SBI has in the RISC-V software stack. Concrete example with OpenSBI.
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I wired up my bike's GPS to order me pizza during a gravel race
As harvest season begins here in the Midwest, I once again celebrate by grinding Nebraska gravel at the Gravel Worlds Long Voyage bike race. As in previous years ( 2021 ) ( 2022 ), I spent more time writing code for a marginally-useful project than I did training. But hey, I finished!
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It's My Monitor
This is the first in (maybe) a series of “Tales From Tech Support”, which are true stories from my point of view. I’ll probably only post these on a Friday. In the 1990s, I worked as a contractor for a large, well-established accounting firm. We’d often buy new equipment and unpack it at the helpdesk, throw away all…
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