rx_tx
rx_tx on Hacker News
If you ever are in Paris, I can't recommend the Musee des Arts et Metiers enough.
I believe they have the several reference platinum kilograms that are now out of spec. [1]
they also have the original actual Foucault pendulum that was used to demonstrate Earth's rotation. (and a replica doing a live demo, of course)
They have so many incredible artifacts (for weights and measures but also so much more: engineering, physics, civil engineering, machining,...)
[1]: https://collections.arts-et-metiers.net?id=13404-0001-
On the topic of tricking the automated phone usage detection cameras this youtuber had an entertaining video where he built a car phone holder by molding his hand and making a replica.
https://youtu.be/Ud8kFCmalgg
> Based on 50 Cent's name being coined
I see what they did there.
Posted by
rx_tx on Monday September 08, 2025 @02:53AM
from the bart.gov dept.
I suspect hiding the manufacturer/model was very much on purpose, they blurred the markings on the PCB and hid the domain name for the manufacturer's API calls (and in the console logs as well).
H.I. Sutton did a great video [1] about it that also explains how it was beneficial due to the way enemy submarines had to estimate speed and heading and could get fooled.
[1]: https://www.youtube.com/watch?v=Kw7vq_YD6JM
This article has good background, context, and explanations [1] They skipped CUDA and instead used PTX which is a lower level instruction set where they were able to implement more performant cross-chip comms to make up for the less-performant H800 chips.
[1]: https://stratechery.com/2025/deepseek-faq/
Posted by
rx_tx on Thursday January 02, 2025 @09:17PM
from the johnhancock.com dept.
the specs on the one in the article mention it's a multitouch RESISTIVE trackpad, so I don't expect it to be great, at all.
> Integrated tetra-array mic
That's definitely an uncommon way of saying quad microphone array.
It's an AI toughbook due to having a unspecified "1.4Ghz AI Boost NPU" which seems to be something Intel offers, and according to other websites, operates at 34 TOPS.
Maybe NASA still wants to get something for the money spent launching Crew 9 and get some science done, not just be a rescue mission. They don't want to cut that mission short.
A few tidbits/notes I took:
- They'll reconfigure Crew-8 for 6 occupants for contingency evac between Starliner undock and Crew-9 arrival.
- Starliner leaving ISS autonomously early September
- Crew 9 launching no later than Sept 24th with 2 crew + 2 empty seats
- Crew 9 coming back down in ~Feb 2025
I tend to find large "Gigogne" Duralex mixing bowls often in Goodwill/second hand stores in the Bay Area, and I can't resist getting them. They're truly versatile and very sturdy, and they stack very well without getting jammed.
What do you do with the added deltaV from the venting? (not sure if significant)
It could send the already-out of control rocket stage/object to a weirder or worse orbit, increasing the changes of collision.
ChargerLab's KM003C passes in Thunderbolt 4 correctly at least.
(source: I have one and can have it between my macbook pro and a TB4 dock and two displays work correctly)
Exactly, they're plates to follow using a pantograph machine that will in turn engrave your piece. I love the "Himalaya" type in the article, very Art Deco.
If you want a demo of a vintage one, this video from Inheritance Machining [1] is a great watch. It also shows how you can change the scale by adjusting the lever arm positions.
[1]: https://www.youtube.com/watch?v=7am-ysvGD3s
Posted by
rx_tx on Monday June 03, 2024 @12:34AM
from the anandtech.com dept.
Logitech mice (like the MX3 master) have a profile toggle switch on the bottom that can swap between 3 different BT devices or their supplied dongles. Super fast and convenient.
It's actually different than the OG Lightning, it's quite wider. (the tweet has comparison pics)
There's actually another undocumented pin-hole ejection feature in apple hardware. ifixit found during their teardown of airpod Max that you can disconnect/remove the earcup in one go with a sim tool, allowing for theoretical easy mix and match (or headband replacement) [1]
[1] : https://www.ifixit.com/Teardown/AirPods+Max+Teardown/139369#...
would a service like privacy[dot]com which generates custom one-off credit card numbers with custom spend limits be useful? (Not affiliated, I just use them from time-to-time exactly for that purpose)
Posted by
rx_tx on Friday January 12, 2024 @06:07PM
from the theverge.com dept.