@mcnees Sophie Wilson, the designer of the ARM architecture, is also a trans woman
. And before, she conceived my first computer: the 1980 Acorn ATOM, who could run inlined 6502 assembly in its BASIC programs! ![]()
Huh, interesting numbers for new cars sold in 2023 in Norway. Only 3.7% were pure fossil fuel cars. That's a pretty damn low number. In addition, 14% were hybrids and the remaining 82.4% were electric.
In general, 27% fewer cars were sold in 2023 compared to 2022. Most likely due to changes in taxes a year ago which caused a lot of planned purchases to happen before the end of 2022.
Source (Norwegian): https://e24.no/energi-og-klima/i/2B2GOx/2023-ble-en-kalddusj-for-bilbransjen
Lynn Conway, electricial engineer and computer scientist, co-architect of the VLSI design revolution, and transgender activist, was born #OTD in 1938.
She invented Dynamic Instruction Scheduling at IBM, but IBM fired her when they learned she was transitioning.
Photo: Lynn Conway
"NASA’s James Webb Space Telescope continued to dazzle in 2023, with some of the most spectacular images of space ever seen." #NASAWebb
https://www.nature.com/immersive/d41586-023-03872-z/index.html
Without any electronic equipment, piano tuners can tell if two strings are vibrating at almost but not quite the same frequency. They do it by listening for 'beats' - pulsations in loudness.
How does this work? If you add two sine waves of slightly different frequencies, say sin(ωt) and sin(ω't), they will add up and be loud for a while, but then drift out of synch and cancel out for a while. Then they'll drift back into synch and get loud again, etc.
There's even a formula for this:
sin(ωt) + sin(ω't) = 2 sin((ω+ω')t/2) cos((ω-ω')t/2)
We get a sine wave whose frequency is the average (ω+ω')/2, slowly pulsing because it's multiplied by a cosine wave with the low frequency (ω-ω')/2.
I got the animated gif from here:
https://ophysics.com/waves10.html
If you go there and choose ω = 500 hertz and ω = 510 hertz, you can hear nice pulsations at 10 hertz: that is, ten times a second.
Mickey Mouse Horror Movie Trailer Drops: Film Uses ‘Steamboat Willie’ Version Of Character That’s Now In Public Domain https://deadline.com/2024/01/mickey-mouse-horror-movie-trailer-mickeys-mouse-trap-1235693579/
@mhoye I'd only say to folks be careful about doing this to other people's accounts (as an admin) or to your own if you're forgetful. I've seen people go on an epic wild goose chase trying to troubleshoot unexpected behavior whose root cause was an overridden shell built-in. If you don't think to check for that, it can be very baffling.
This is a nice look at Lagrange points and all the spacecraft that are hanging out in these stable islands where the gravity from the Earth & Sun balance each other out https://www.scientificamerican.com/article/indias-aditya-l1-space-probe-heads-for-gravitational-island/
Thirty years ago, I used the holidays to rewrite our in-house 3d tool from scratch, based on specs and design I worked on for a year. On January 2nd 1994, the first version was running!
I'm incredible proud, humbled and impressed of where it went. Happy 30th birthday :) #b3d
@robertatcara As someone who personally discovered and fixed bugs that would have had significant real world impact, it is disturbing to hear someone propagate this myth. And it is a myth.
https://time.com/5752129/y2k-bug-history/
The testing methodology insured that these impacts were not hypothetical. At my company, the testing was performed by "actually rolling the clock forward* on test. systems to see what would happen. For example, I discovered that every ATM in the state of Alaska operated by my company would have locked up until a chip was swapped. Someone had to fly all over the state to proactively swap the chip beforehand, to avoid significant customer impact.
And that was just one story. I personally oversaw investigation and fixes for other hardware and software at that company that would have failed.
And that was just my company. I spoke with others in IT at that time with similar stories. And that was just the people I knew.
So no, it wasn't "a big fuss about nothing" - and saying so is both dangerously revisionist, and disrespectful of the work it took to prevent real impacts.
Can we just stop using Discord and go back to using forum sites?
I realize it's (comparatively) super easy to set up, but y'all realize it's just going to bite us all in the ass as soon as someone at Discord decides they need to turn up the profit ratio?
It's a ticking time bomb. The whole thing is going to follow the enshittification process, and anything of value on there is going to be lost/sold/destroyed. Y'all are just feeding the monster.
2023 was a big year for laser communications at #NASA! It saw the first bi-directional laser communications relay with the #ISS performed by the #LCRD mission (at over 1 Gbps), a 267 Mbps downlink from deep space (19 million miles away) by the #DSOC mission, and 200 Gbps throughput on a laser link with a LEO orbiting spacecraft by the #TBIRD mission.
As a believer in the motivational power of streaks (thanks, Duolingo), massive respect to @tomscott who just ended a ten year streak of posting a video to YouTube once a week (and gained over 6 million subscribers in the process)
His sign-off video is an extremely stylish way to go out https://www.youtube.com/watch?v=7DKv5H5Frt0
Obligatory #psychology post about motivation for new years resolutions, some stuff I've learned both as a psych researcher and this year as a person trying to stay committed to very complex rehab!
- when we say set attainable goals WE MEAN IT! Cut the goal in half. Ambition is the mind-killer. Attainable is the recursive motivation feeder.
- mindful tracking means make it easy for yourself to see your effort, not fixate on outcomes
- we overestimate the cost of lapse, remind yourself of this
One of the most important times to wear a mask is after you have attended a large gathering.
Wastewater data suggests there was a 50%+ chance you encountered someone with COVID if you attended an event with 20+ people.
You can transmit COVID before you develop symptoms, so now is a good time to wear a mask.
(Chart: Dr. Mike Hoerger)
I timed AFTER THE THIN MAN on Max (formerly HBO Max) so the new year would strike simultaneously on film and in real life.
After it did, I paused. When I restarted, I got this message.
A good reminder for 2024: physical media doesn’t disappear at midnight.
Theoretical physicist by training (PhD in quantum open systems/quantum information), University lecturer for a bit, and currently paying the bills as an engineer working in optical communication (implementation) and quantum communication (concepts), though still pursuing a little science on the side. I'm interested in physics and math, of course, but I enjoy learning about really any area of science, philosophy, and many other academic areas as well. My biggest other interest is hiking and generally being out in nature.