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Janet Jackson had the power to crash laptop computers (2022)

devblogs.microsoft.com

121–128 of 128 posts

Re: Janet Jackson had the power to crash laptop computers (2022)

#121
post #36

https://everything2.com/title/7+hertz+-+the+resonant+frequen... Example (for both functions): /* Emits a 7-Hz tone for 10 seconds. True story: 7 Hz is the resonant frequency of a chicken's skull cavity. This was determined empirically in Australia, where a new factory generating 7-Hz tones was located too close to a chicken ranch: When the factory started up, all the chickens died. Your PC may not be able to emit a 7…

You're not generating a 7 hz tone on any sort of conventional audio gear, and definitely not a pc speaker.

You can with your hands, just shake them

Re: Janet Jackson had the power to crash laptop computers (2022)

#122
post #36

https://everything2.com/title/7+hertz+-+the+resonant+frequen... Example (for both functions): /* Emits a 7-Hz tone for 10 seconds. True story: 7 Hz is the resonant frequency of a chicken's skull cavity. This was determined empirically in Australia, where a new factory generating 7-Hz tones was located too close to a chicken ranch: When the factory started up, all the chickens died. Your PC may not be able to emit a 7…

You're not generating a 7 hz tone on any sort of conventional audio gear, and definitely not a pc speaker.

Who said the source has to stationary? Doppler shift for the win.

Re: Janet Jackson had the power to crash laptop computers (2022)

#123

Earlier quoted context omitted.

That is fair, particularly compared to Janet Jackson! I will add detail. In their younger days, two distinguished engineers, Bryan Cantrill and Brendan Gregg, made this video where they scream at a data storage server nicknamed Thumper. Screaming at it has surprising results, which are observed with a novel software technology called dtrace. The Sun Fire X4500 was a dense storage sever, 4U with 48 disks and insane IO…

It was your rather odd usage of "affecting" that caused my confusion, made me think IOPS was some new internet acronym and something which could be affected as one would affect continental to sound cultured. I would have gotten the general gist had you said "causing IOPS" or if I knew Thumpers or maybe if you had used the full names of Cantrill and Gregg but I am not sure if I would have made that connection. Thanks…

All good, I thought your point was fair either way, considering my original point of being clear about a link. Plus a chance for storytelling. =)

Re: Janet Jackson had the power to crash laptop computers (2022)

#124
post #86

Very funny, reminds me of how Jennifer Lopez created Google Image Search when she wore a very deep cut green dress in 2000. So many people searched for "Jennifer Lopez Green Dress" that the search team realized they needed to include images in the search results. https://www.project-syndicate.org/magazine/google-european-c... https://www.thecut.com/2019/09/jennifer-lopez-walks-in-versa...

If this hadn’t been published in 2015, you’d all call it AI slop: > When the German engineer Karl Benz invented the first petroleum-powered automobile, he did not just create an engine with wheels; he set in motion an industry that revolutionized the way society was structured.

All he had to do to fix this was say "he drove forward" instead of set in motion. So close to a great simile.

Re: Janet Jackson had the power to crash laptop computers (2022)

#125
The story is slightly unusual because I was actually managing a part of the engineering group at IBM that was integrating hard disk drives into ThinkPads during that era. I am not suggesting that it could not have happened or that it might have occurred at another major laptop manufacturer, but many details regarding the exact source and nature do not feel quite right. Music was a massive issue. It's just that it became an industry issue a little later as production moved to Taiwan and we were increasing our AD curve.

The issue of music crashing a hard disk drive was a genuine problem. Since I later specialized in hard drives, I can confirm that every manufacturer faced this issue as multimedia laptops became more common and we transitioned to higher areal densities. To state the obvious, we shrank the tracks every time to achieve larger capacities. We were doubling capacities every nine to twelve months when we first introduced MR, GMR, and PMR heads. The hard drive industry employs incredible control theory experts due to the requirement of keeping a head on track. Personal opinion, which I probably should research, but I believe that one of the densest concentrations of Ph.D.s in leading edge control theory could be found within the hard disk drive industry. Amazing things happen when you're trying to fly nanometers off the disc in a track that is maybe 100 nanometers wide at the time.

By 2010ish, as part of our development suite, we actually played music through the speakers to identify these types of issues. The origin of this practice actually came from the ODMs in Taiwan. Therefore, Janet Jackson was not the standard qualification song we used. Instead, it was popular hits from the Chinese pop market. There were also Western songs within the suite, but I remember our team blasting Chinese pop songs at full volume on multimedia laptops.

Laptop development began moving heavily to Taiwan in the mid nineties. By the time the early two thousands arrived, there was a massive amount of competence in Taiwan regarding chassis design engineering. As time progressed, every American PC company continued to outsource development to Taiwan and eventually to China. As development was outsourced, the ODMs would work with suppliers because we wanted to present solutions to the OEMs that were free of issues.

EDIT: By the way, it wasn't necessarily a blue-screen crash. I'm not saying that that couldn't happen, but generally what we did is we had the throughput test that we were run on the hard drives. Then we would go blast the music full bore and there were certain bandwidth requirements that we needed to get out of the hard disk drive. So to add some more details behind this, I would describe it as a performance issue and the blue screen issue was relatively minor. However, this was a number of years ago and I don't remember the exact percentages.

Re: Janet Jackson had the power to crash laptop computers (2022)

#126

Why didn't they mute the volume to see if it was the video or audio stream causing problems?

This is someone retelling a story they were told by a co-worker of an event over 20 years prior. It’s not surprising that he doesn’t go into the details of exactly what was tried, beyond the key parts of the story.

I won't repeat it here, but I posted What I saw as an insider. I think that not all of the facts were quite right. However, some of the overtones definitely are.

Re: Janet Jackson had the power to crash laptop computers (2022)

#127

I'd love to know whether that story is actually true. Some dude hears somebody tell a story about sth 20 years ago, puts it in a blog, and here we are on HN, nobody questioning whether it's actually accurate. Of course Raymond Chen isn't just any random person, but the more important it would be to actually check? I mean, who hasn't heard people tell stories from decades ago, including colleagues reminiscing about th…

As somebody that actually had development experiences, both PC companies and in the hard drive industry, I posted an upper level post on this. I won't repeat it here, but an awful lot of this sounds apocryphal but some truth behind it.

Re: Janet Jackson had the power to crash laptop computers (2022)

#128
post #12

Earlier quoted context omitted.

Technically, that magnetic spinning HDD can work even after decades if maintained safely (no dust, no extreme heat) and without stress, even if it is not switched on for years. In fact, if a magnetic HDD crashes, you may still recover some or all of the data by doing something hardcore, such as letting it sit for some hours in the freezer of your refrigerator, or immersing it in a bowl of rice overnight. However, SSD…

HDDs also lose magnetic charge over time, about 1% per year. So you need to periodically spin up and rewrite the data every few years. CD drives however, can store data indefinitely without needing refreshing.

As an industry insider, I have never heard the one percent. I'm not saying that it's not possible, but I don't recall ever hearing of us testing for it. So what is the source of the 1%?
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