1,007 karma · joined November 1, 2014
https://twitter.com/LeoLabs_Space/status/1806140666222948679
https://www.spacecom.mil/Newsroom/News/Article-Display/Artic...
This one has keys that are actuated by the slide: https://www.youtube.com/watch?v=NJU9Rm-KviI (The last third of the video has a narrative in French describing the instrument, photobombed by a set of four serpents hanging on the wall behind the speaker. A serpent is a instrument that is sort of the opposite of a slide sax: it combines a brass-style mouthpiece with woodwind-like fingerholes).
This one looks mechanically simpler but it's not conical bore like a real saxophone: https://www.youtube.com/watch?v=vjnrM3GZMS8
https://www.reuters.com/world/middle-east/houthis-mistakenly...
and at the time it was the second such incident.
It would look really bad to lose someone after landing on the carrier.
The flight deck of an aircraft carrier is a loud, confusing, and dangerous place. I imagine they were told something like "this is not a time or place for sightseeing. hang on to the person in front of you and they'll lead you to a safe place below decks".
Perhaps most of the good Swede jokes moved to Minnesota?
(seriously, a bunch of the intra-scandinavian humor seems to be of Scandahoovian-American origin. Like the "10,000 Swedes chased through the weeds / by one Norwegian" thing.)
There are relatively cheap adapter boards which let you stick 4 M.2 drives in a single PCIe x16 slot; you can usually configure a x16 slot to be bifurcated (quadfurcated) as 4 x (x4).
To pick a motherboard at quasi-random:
Tyan HX S8050. Two M.2 on the motherboard.
20 M.2 drives in quadfurcated adapter cards in the 5 PCIe x16 slots
And you can connect another 6 NVMe x4 devices to the MCIO ports.
You might also be able to hook up another 2 to the SFF-8643 connectors.
This gives you a grand total of 28-30 x4 NVME devices on one not particularly exotic motherboard, using most of the 128 regular PCIe lanes available from the CPU socket.
It isn't all in use on most machines. Many hosts only use 127.0.0.1/32 and do not use the rest of the space; changing the default netmask on the loopback interface from /8 to something like /24 would be one step of the transition.
Like 240/8 it's probably not worth the effort.
If you can get the correct IP address for a site out of the DNS but can't reach the site, it's not a DNS problem, and not a problem with the root DNS servers. This is likely correlated only in time with the c.root-servers.net issue.
That said, your difficulty reaching indilib.org may be related to the Cogent-TATA peering dispute or one of Cogent's other peering disputes - from where I sit, a traceroute to indilib.org goes through cogent's network. But that's not what this submission is about.
Other reasons why you might do it are covered in rfc8806 - slightly reduced latency on cold-cache DNS queries, added resilience against DoS attacks against root DNS servers.
If you're already running your own recursive resolver on reasonably up-to-date software it can be surprisingly easy to set this up; see rfc8806 for some config examples.
dig @${server} . soa
c.root-servers.net showed an older serial number than all the others yesterday.
This seems like a major hole in their monitoring systems.
"2024‑05‑23 - On May 21 at 15:30 UTC the c-root team at Cogent Communications was informed that the root zone as served by c-root had ceased to track changes from the root zone publication server after May 18. Analysis showed this to have been caused by an unrelated routing policy change whose side effect was to silence the relevant monitoring systems. No production DNS queries went unanswered by c-root as a result of this outage, and the only impact was on root zone freshness. Root zone freshness as served by c-root was fully restored on May 22 at 16:00 UTC."
Edit to add:
This was mentioned on Tuesday on the dns-operations list:
https://lists.dns-oarc.net/pipermail/dns-operations/2024-May...
https://aboutphotography.blog/blog/2019/10/12/the-story-behi...
And old habits die hard:
https://www.rferl.org/a/russian_patriarch_watch_disappearing...
In 2012, Eugene Volokh argued on behalf of Google that it was indeed a publisher:
https://www.nytimes.com/2012/05/21/business/media/eugene-vol...
They're now hosting an "AMA" on their product forums and it's going about as well as one might expect.
It was in Latin. "HODIE NATUS EST RADICI FRATER".
Given the error rates described by Feynman, if they had to restart the entire computation from scratch after a single detected error they'd likely never have completed the task.
My favorite part:
"When I went back to work on the calculation program, I found it in a mess: There were white cards, there were blue cards, there were yellow cards, and I started to say, "You're not supposed to do more than one problem -- only one problem!" They said, "Get out, get out, get out. Wait -- and we'll explain everything."
"So I waited, and what happened was this. As the cards went through, sometimes the machine made a mistake, or they put a wrong number in. What we used to have to do when that happened was to go back and do it over again. But they noticed that a mistake made at some point in one cycle only affects the nearby numbers, the next cycle affects the nearby numbers, and so on. It works its way through the pack of cards. If you have fifty cards and you make a mistake at card number thirty-nine, it affects thirty-seven, thirty-eight, and thirty-nine. The next, card thirty-six, thirty-seven, thirty-eight, thirty-nine, and forty. The next time it spreads like a disease.
"So they found an error back a way, and they got an idea. They would only compute a small deck of ten cards around the error. And because ten cards could be put through the machine faster than the deck of fifty cards, they would go rapidly through with this other deck while they continued with the fifty cards with the disease spreading. But the other thing was computing faster, and they would seal it all up and correct it. Very clever. That was the way those guys worked to get speed. There was no other way. If they had to stop to try to fix it, we'd have lost time. We couldn't have got it. That was what they were doing. Of course, you know what happened while they were doing that. They found an error in the blue deck. And so they had a yellow deck with a little fewer cards; it was going around faster than the blue deck. Just when they are going crazy because after they get this straightened out, they have to fix the white deck the boss comes walking in. "Leave us alone," they say. I left them alone and everything came out. We solved the problem in time and that's the way it was."
The ammunition warehouses in Vrbětice exploded in October 2014.
Top comment there is: "The Pied Sniper" (!)
That clip appears to be from https://www.twitch.tv/deanobeano/clip/CharmingDoubtfulCattle... (note: brief profanity at the end of the clip).
They gather near the edge of the ice and jostle each other until one bird falls in. Then they watch to see if it gets eaten by a predator. If not, the rest of them dive in and go for a swim...
But in space, we don't have roads. Rockets push against their reaction mass.
What is a hypothetical drive with no reaction mass pushing on?