tjohns

10 ms·

91.
by tjohns 1y ago
> Has a very easy answer in the US: No. While you're not wrong in practice, it's actually a surprisingly complicated area of law. The FAA doesn't "own" the airspace, it's a public right-of-way and every citi
92.
by tjohns 1y ago
For what it's worth, shooting at aircraft (including drones) is a federal offense, and the FAA takes that one pretty seriously. Drones also have cameras.
93.
by tjohns 1y ago
This is a very good summary of the situation. We have digital datalink weather, pilots love it and use it frequently. It would be nice to have D-ATIS at smaller airports, but otherwise weather is a solved problem. For everything else, voice
94.
by tjohns 1y ago
> He's a 42 year old dude. Looking for a job in software? You gotta be joking. This is such an odd take. I see lots of older folks around me - and 42 isn't that old. That said, it's undeniably true that expectations are ra
95.
by tjohns 1y ago
All the court is asking the lawyer to do is to re-file without the distracting formatting. It's not like they're throwing the entire case out. It'll still get read. It's also worth noting that the local rules for just ab
96.
by tjohns 2y ago
The Apple Vision Pro definitely uses dynamic foveated rendering. It only fully renders what’s at the center of your vision, but it should be adjusting where this is in real-time based on the gaze tracking data. (It’s easy to observe this if
97.
by tjohns 2y ago
Yes, that's how I do it. Only available on the Pro version of Windows though.
98.
by tjohns 2y ago
Earthquake hazard exists for literally the entire North American west coast. If you move further east, you start to get other hazards: Hurricanes, tornados, flooding, forest fires. Take your pick, there's always something to worry abou
99.
by tjohns 2y ago
Earthquake. The entire North American west coast sits on the boundary of the Pacific tectonic plate, so it's a subduction zone. Same reason California and Japan are known for large earthquakes. See also: https://en.wikipedia
100.
by tjohns 2y ago
HF is definitely traceable. Hams make an entire sport of of this ("fox hunting"), and the FCC has a network of automated monitoring stations dotted across the country specifically to determine the location of rogue radio transmiss
101.
by tjohns 2y ago
Explicitly legal. ECPA has an carve out for listening to aeronautical radio traffic: 18 U.S.C. § 2511(2)(g)(ii)(I/IV): "It shall not be unlawful under this chapter or chapter 121 of this title for any person to intercept any radio
102.
by tjohns 2y ago
ACARS isn't ATC traffic. It's semi-private communications with airline company dispatch. Text-based ATC communications is done over a different system called CPDLC (FANS-1/A). That said, this is no different than listening to
103.
by tjohns 2y ago
The usual distinction between "light" and "non-light" is based on the underlying mechanism by which photons are being produced. Photons produced by electrons jumping between energy shells are what we call "light&quo
104.
Gridfinity: The modular, open-source grid storage system(gridfinity.xyz)
3 points by tjohns 2y ago|0 comments
105.
by tjohns 2y ago
I find it absolutely insane that the industry standard for SIP trunks is unencrypted UDP, usually using IP-based authentication. When I asked a popular VoIP carrier about this a while back, they argued that unencrypted connections were fine
106.
by tjohns 2y ago
Depends if you're in Canada's "northern domestic airspace" or "southern domestic airspace": https://www.canada.ca/content/dam/dnd-mdn/images/technical-a... Airports in the s
107.
by tjohns 2y ago
This seems to be very subjective. I can wear the Apple Vision Pro headset for hours without it feeling uncomfortably heavy. I'm not sure if that's because I just happen to have a good light seal fit, or if it's because I spen
108.
by tjohns 2y ago
I'm very curious what they're using on the capture side for this. How are they keying out the rest of the stadium? What's the camera setup? I'm not a huge sports fan, so I honestly couldn't say whether I'd wa
109.
by tjohns 2y ago
A few public ones off the top of my head: Satya Nadella (Microsoft) and Ed Catmull (Pixar) are both folks who I consider to be strongly opinionated and effective leaders but who don't come across as jerks. I'm not sure how "t
110.
by tjohns 2y ago
Some of Linus's past messages came across as needlessly aggressive and insulting. There really was no practical reason for that and just served to alienate contributors, and it came across as unprofessional. You can be a strong, opinio
111.
by tjohns 2y ago
What Elon's tweet says is that 18F has been "deleted": https://x.com/elonmusk/status/1886498750052327520 Their account on Twitter/X seems to have just been deleted: https://x.com&#x2
112.
by tjohns 2y ago
It also has to listen, and accept complex requests and demands from pilots over a scratchy and occasionally garbled radio link. Have you ever gotten frustrated because Alexa/Siri/etc completely misinterpreted a voice request? Or l
113.
by tjohns 2y ago
Correct. At that altitude TCAS RAs were almost certainly inhibited. They might have gotten a TA. On the tapes, the military helicopter was warned about the airliner. They replied that they had the traffic in sight and requested to maintai
114.
by tjohns 2y ago
No. We use some deterministic automation on the backend for helping with traffic management and rerouting flight paths, but the communication with aircraft is mostly done via voice. Everything happens too fast to insert a keyboard in the mi
115.
by tjohns 2y ago
Radar replay: https://x.com/avgeekjake/status/1884823071611363833 UHF feed with comms from the military helicopter: https://archives.broadcastify.com/44114/20250129/20250129200... - 5:41
116.
by tjohns 2y ago
People didn’t live very long when we first tamed fire - not because of diet, but because something else in nature would eventually get you first. So it didn’t really matter what early humans ate as long as it gave them immediate energy. Peo
117.
by tjohns 2y ago
The “quick sear” is specifically what causes the Maillard reaction though!
118.
by tjohns 2y ago
That's a good first-order approximation, but is missing some nuance. An example they use is eggs: Pan-fried eggs are listed as high in AGEs, whereas scrambled eggs aren't. Admittedly my diet isn't the best, but I wouldn'
119.
Drone collides with firefighting aircraft over Palisades fire(latimes.com)
13 points by tjohns 2y ago|2 comments
120.
by tjohns 2y ago
It's "northern" when you compare its range with the other giant hornet, vespa soror or the "southern giant hornet". You can compare the ranges here: https://entsoc.org/sites/default/files

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