John Wiseman
@lemonodor.bsky.social
Persistent sousveiller. Walt Disney R&D Imagineer. DM for Signal. https://heavymeta.org
A new use of the AIS name field I haven't seen before, apparently warning ships about a LIVE FIRING EXERCISE.
November 12, 2025 at 8:15 PM
A new use of the AIS name field I haven't seen before, apparently warning ships about a LIVE FIRING EXERCISE.
Another new feature is the ability to properly distinguish vessels that are sharing an MMSI (which often happens with 999999999). I wish plane tracking sites based on readsb/tar1090 did this, e.g., for hex 000001. Instead of separate targets, they show a single target jumping around the world.
November 12, 2025 at 6:34 PM
Another new feature is the ability to properly distinguish vessels that are sharing an MMSI (which often happens with 999999999). I wish plane tracking sites based on readsb/tar1090 did this, e.g., for hex 000001. Instead of separate targets, they show a single target jumping around the world.
I've been adding more features to my experimental ship tracking site. Now it shows ships with MMSI 999999999 which are not shown on almost any tracker, but is often used by warships.
fta-ais-live.obliscence.com
fta-ais-live.obliscence.com
November 12, 2025 at 6:30 PM
I've been adding more features to my experimental ship tracking site. Now it shows ships with MMSI 999999999 which are not shown on almost any tracker, but is often used by warships.
fta-ais-live.obliscence.com
fta-ais-live.obliscence.com
"We've cannibalized 4 [Otari analog tape players] to keep 3 running." They bake old tapes to re-adhere the oxide so the playhead doesn't scrape it all off, but they still only get one or two plays from that before a tape is destroyed.
November 11, 2025 at 7:52 PM
"We've cannibalized 4 [Otari analog tape players] to keep 3 running." They bake old tapes to re-adhere the oxide so the playhead doesn't scrape it all off, but they still only get one or two plays from that before a tape is destroyed.
Map of radio frequency interference mapped from space (via SMAP) overlaid with GPSJAM data.
November 7, 2025 at 8:46 PM
Map of radio frequency interference mapped from space (via SMAP) overlaid with GPSJAM data.
Query: "Red buildings with 'Iran Air Cargo' painted on the roof". Results in 0.32 seconds. Semantic search of geospatial/aerial imagery data. piminto.obliscence.com
November 5, 2025 at 7:23 PM
Query: "Red buildings with 'Iran Air Cargo' painted on the roof". Results in 0.32 seconds. Semantic search of geospatial/aerial imagery data. piminto.obliscence.com
Very lucky man in this dash cam video that caught the UPS MD-11 flight 2976 crash. I don't know the original source, I got it from x.com/ShelbyWx_/st... [Deleted & re-posted because I meant to flag this as graphic media.]
November 5, 2025 at 6:25 PM
Very lucky man in this dash cam video that caught the UPS MD-11 flight 2976 crash. I don't know the original source, I got it from x.com/ShelbyWx_/st... [Deleted & re-posted because I meant to flag this as graphic media.]
Chart (slightly tweaked) showing the total number of jobs posted to HN's "Who is hiring? posts. Data from hnhiring.com. After July of 2022 the numbers are *dismal*, about 1/3 what they were before COVID. January 2025 was the worst month ever since 2018.
November 4, 2025 at 5:21 PM
Chart (slightly tweaked) showing the total number of jobs posted to HN's "Who is hiring? posts. Data from hnhiring.com. After July of 2022 the numbers are *dismal*, about 1/3 what they were before COVID. January 2025 was the worst month ever since 2018.
Chart showing the total number of jobs posted to HN's "Who is hiring? posts. There's a COVID effect, with a dip at the beginning and then a slight bump but after July of 2022 the numbers are *dismal*, about 1/3 what they were before COVID. January 2025 was the worst month ever since 2018.
November 4, 2025 at 1:03 AM
Chart showing the total number of jobs posted to HN's "Who is hiring? posts. There's a COVID effect, with a dip at the beginning and then a slight bump but after July of 2022 the numbers are *dismal*, about 1/3 what they were before COVID. January 2025 was the worst month ever since 2018.
Chart of remote jobs posted to Hacker News over the past 8 years. The peak is where you would expect.
November 4, 2025 at 12:46 AM
Chart of remote jobs posted to Hacker News over the past 8 years. The peak is where you would expect.
Chart of U.S. job postings over the past 8 years on Hacker News, from nnhiring.com.
November 4, 2025 at 12:43 AM
Chart of U.S. job postings over the past 8 years on Hacker News, from nnhiring.com.
I do have an even bigger & cooler, still-secret project that might make it in under the line for 2025.
November 3, 2025 at 3:51 PM
I do have an even bigger & cooler, still-secret project that might make it in under the line for 2025.
There's less than one full month left in 2025, but I feel good if I can post at least one significant project per year and PIMINTO is a good one. "I think this hasn't got as much attention as it deserves." – someone on the @armscontrolwonk.bsky.social slack. heavymeta.org/projects/
November 3, 2025 at 3:38 PM
There's less than one full month left in 2025, but I feel good if I can post at least one significant project per year and PIMINTO is a good one. "I think this hasn't got as much attention as it deserves." – someone on the @armscontrolwonk.bsky.social slack. heavymeta.org/projects/
“The FBI later replied with an 'updated statement' that said, 'Reports suggesting young children were zip-tied or hit with rubber bullets during the October 19 FBI-led operation in Wilder are completely false.'” www.kivitv.com/canyon-count...
November 2, 2025 at 2:12 AM
“The FBI later replied with an 'updated statement' that said, 'Reports suggesting young children were zip-tied or hit with rubber bullets during the October 19 FBI-led operation in Wilder are completely false.'” www.kivitv.com/canyon-count...
About 45 minutes into its flight, JetBlue 1230 had a sudden, short descent according to ADS-B data.
October 31, 2025 at 2:06 AM
About 45 minutes into its flight, JetBlue 1230 had a sudden, short descent according to ADS-B data.
The Kimi CLI agent has a clever, mind-bending ability to rewrite its past context, essentially sending itself a message from the future (called D-Mail, from an anime where messages are sent to the past via black holes). "Future you tried that, it didn't work and it burned tokens. Try this instead."
October 30, 2025 at 10:53 PM
The Kimi CLI agent has a clever, mind-bending ability to rewrite its past context, essentially sending itself a message from the future (called D-Mail, from an anime where messages are sent to the past via black holes). "Future you tried that, it didn't work and it burned tokens. Try this instead."
Chaos Computer Club found an oopsie: "Using the credentials test:test, it was possible to log in at the ARINC OpCenter Message Browser as U.S. Navy Fleet Logistics Support Wing." www.ccc.de/en/disclosur...
October 29, 2025 at 8:39 PM
Chaos Computer Club found an oopsie: "Using the credentials test:test, it was possible to log in at the ARINC OpCenter Message Browser as U.S. Navy Fleet Logistics Support Wing." www.ccc.de/en/disclosur...
The Finnish Transport Infrastructure Agency publishes open, real-time AIS data for Finland's waterways, which is amazing. For fun I made a map that uses it. fta-ais-live.obliscence.com
October 22, 2025 at 10:48 PM
The Finnish Transport Infrastructure Agency publishes open, real-time AIS data for Finland's waterways, which is amazing. For fun I made a map that uses it. fta-ais-live.obliscence.com
Video by stevefaeembra: "Flight down Glencoe, done in a 80s/90s Sci Fi movie style. Contours done in #QGIS , using data from Ordnance Survey Open ZoomStack"
mapstodon.space/@stevefaeemb...
mapstodon.space/@stevefaeemb...
October 22, 2025 at 5:28 PM
Video by stevefaeembra: "Flight down Glencoe, done in a 80s/90s Sci Fi movie style. Contours done in #QGIS , using data from Ordnance Survey Open ZoomStack"
mapstodon.space/@stevefaeemb...
mapstodon.space/@stevefaeemb...
As I said when it first launched, it's like writing webgl shaders for ADS-B using SQL. Here's raw GPS accuracy: adsb.exposed?dataset=Plan...
October 14, 2025 at 10:34 PM
As I said when it first launched, it's like writing webgl shaders for ADS-B using SQL. Here's raw GPS accuracy: adsb.exposed?dataset=Plan...
Since adsb.exposed is going around again, here's a custom GPT I made that you can use to translate natural language queries ("give me a query that only shows things above 55000 feet going slower than 100 knots", i.e. balloons) to Clickhouse's query language: chatgpt.com/g/g-GfJuwxZF...
October 14, 2025 at 10:30 PM
Since adsb.exposed is going around again, here's a custom GPT I made that you can use to translate natural language queries ("give me a query that only shows things above 55000 feet going slower than 100 knots", i.e. balloons) to Clickhouse's query language: chatgpt.com/g/g-GfJuwxZF...
I believe the UPS aircraft, an MD-11, is a Heavy while your Airbus A319 is a Large, so the FAA says 5 mile separation for wake turbulence. I did a more accurate calculation and got 8.8 miles (~1 minute) between the two planes. So I dunno. That's still my best guess, but I'm not a pilot.
October 10, 2025 at 4:30 PM
I believe the UPS aircraft, an MD-11, is a Heavy while your Airbus A319 is a Large, so the FAA says 5 mile separation for wake turbulence. I did a more accurate calculation and got 8.8 miles (~1 minute) between the two planes. So I dunno. That's still my best guess, but I'm not a pilot.
If I had to guess, I'd say it was wake turbulence from the UPS MD-11 you'd been pacing pretty much since takeoff. They had the same altitude, and you cross their path at the time you reported. You were ~5 miles behind them which at your speed means you were where they were 37 seconds before.
October 10, 2025 at 4:14 PM
If I had to guess, I'd say it was wake turbulence from the UPS MD-11 you'd been pacing pretty much since takeoff. They had the same altitude, and you cross their path at the time you reported. You were ~5 miles behind them which at your speed means you were where they were 37 seconds before.
Local and federal law enforcement, including DHS/CBP, often fly with "transponders off". Actually they've only turned off ADS-B–their transponders are on and in Mode C, which is not visible on most flight trackers but can be seen by ATC. Here's a helicopter with ADS-B off that night.
October 6, 2025 at 4:50 PM
Local and federal law enforcement, including DHS/CBP, often fly with "transponders off". Actually they've only turned off ADS-B–their transponders are on and in Mode C, which is not visible on most flight trackers but can be seen by ATC. Here's a helicopter with ADS-B off that night.
I did OK as a math major in a school with a very good math department. I got a perfect score on the math GRE and started a Ph.D at University of Chicago, but I saw right away I wasn't cut out for it while I also saw genius colleagues soar. And that's why I switched to AI.
October 6, 2025 at 12:10 PM
I did OK as a math major in a school with a very good math department. I got a perfect score on the math GRE and started a Ph.D at University of Chicago, but I saw right away I wasn't cut out for it while I also saw genius colleagues soar. And that's why I switched to AI.