jakedata

Joined 7 years ago

Karma
1,400
Submissions
348
Member since
Mar 1
I work with computers and the people that use them. I play with anything but computers. I like old records and old cars, and I don't mind a few scratches on either.
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Recent submissions

Comment · 3 days ago
It is distasteful and crass that one train correctly stopped due to a signalling failure, the other did not stop due to another signalling failure, inattention or error. Had the stationary train been moving or the moving train been stationary this would not have happened or it would have been significantly less tragic. The tragedy is that the system was left in such a dangerous state. The real world doesn't obey the laws of physics you wish for, it's full of external variables including careless, inattentive and greedy people who sometimes cause a lot of harm. My pointing out the system that caused the accident is not the same as saying I'm glad they're dead. Accusing me of being crass and distasteful smacks of a holier-than-thou attitude, or nobody understands suffering like I do. In short, I wasn't laughing.
Comment · 3 days ago
It was no joke here either, the headline was inaccurate. There were not "two high-speed trains". One train stopped due to a signalling failure, the other did not stop due to a to another signalling failure. Had the stationary train been moving or the moving train been stationary this would not have happened or it would have been significantly less tragic.
Comment · 20 days ago
The UK and EU would like to thank you for your concern. After the recent admission that Russia interfered with the brexit voting I suspect they would be happy to let Russia reap its reward.
Comment · 1 month ago
He could have protected that data by dropping all the tables.
Comment · 1 month ago
I assumed it was a typo and they were actually referring to "cretons", a type of French-Canadian potted pork.
Comment · 1 month ago
A traditional transformer doesn't use semiconductors for power conversion and chunks of metal are not "solid state" despite being solid. Call it a hybrid transformer if you want, but the name seems pretty settled. The more relevant part of my comment is that introducing semiconductors and software control into a device formerly only able to operate in a few very predictable ways will lead to both greater flexibility and also new and exciting failure modes.
Comment · 1 month ago
I read about Solid State Transformers https://www.powermag.com/the-solid-state-shift-reinventing-t... with some interest. However they have some weird failure modes. At least large chunks of metal twisted around large chunks of a different metal are predictable and don't need firmware updates.

https://www.feynmanlectures.caltech.edu/II_16.html

Comment · 2 months ago
The key feature of these technologies is passive below ambient cooling.

"Such novel technology is often based on coating materials that reflect solar energy in visible near-infrared wavelength range (0.3–2.5 μm) and send infrared heat to the universe through atmospheric transparency window". https://www.sciencedirect.com/science/article/abs/pii/S00323...

Any other benefit including solar water heating or photovoltaic generation is just burying the lede. 60We/m2 is just fine if it is sharing space with other applications. The fact that they are achieving this with basically doped silicone caulking rather than something like indium tin oxide is fantastic news. Dumping heat into space rather than our oceans and atmosphere is going to matter a whole lot more in the near future, and it even works when it is cloudy.

Comment · 4 months ago
That site is old enough to be Slashdotted.
Comment · 4 months ago
Minor nitpick - the Bernoulli 90 MB removable disk was released in 1991. The Bernoulli 44 MB was late 80s. I liked them a lot better than the SyQuest drives with their hard platters which seemed much more failure prone. I still have a stack of 90 and 150 MB disks and a couple 150 MB drives. They were considerably faster than the internal 20 MB ESDI drives in the IBM PS/2 systems I backed up. I saved a stack of the classic IBM keyboards when we decommissioned all that stuff. Still using them too.
Comment · 4 months ago
The most satisfying part of splitting wood is doing it in temperatures well below freezing. The wood is crystalline in hardness and really does tend to split as it does in this over-optimistic simulation. "Split your own wood and it will warm you twice".

CSB: I had no idea my uncle was unaffected by poison ivy. He invited me over to harvest some dead ash trees on his property. I was destroyed for a month by rashes and he didn't even know the wood was covered in urushiol.

Comment · 4 months ago
20v everywhere plus I made up a high power DC power cord with a barrel connector. My company’s marketing department has really nice USB-C power bricks emblazoned with our logo. I also invested in a biggish Anker battery with full USB-PD support.
Comment · 4 months ago
I bought a Pinecil so I could run it off a battery. I really came to appreciate the excellent temperature control and rapid heating, and use it instead of my soldering station for jobs away from the bench.

I have felt absolutely no need to touch the firmware. I try to forget that it is more powerful than my first three personal computers combined. Plug in, turn on, get hot. It meets my needs and exceeded my expectations. I suppose I could run a website from it if I wanted to make a point but as long as it doesn't require wifi and phone home to verify the license and leak my biometric data I expect to use it until I wear it out.

Comment · 5 months ago
Causing a 15 minute outage campuswide is not clever at all. A DOS attack was not the goal and it drew unwanted attention. If I was responding to this outage there would have been consequences - not for doing it, but for getting caught. Perhaps a 200 KB/s rate limit on every device associated with the user for escalating timeout periods if the unclever behavior remained attributable.

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