1439: "Rack Unit"

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Neil_Boekend
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Re: 1439: Rack Unit

Postby Neil_Boekend » Wed Oct 29, 2014 9:41 am UTC

orthogon wrote:
Neil_Boekend wrote:If you hit a burglar over the head with a videodisk they stay down long enough for the cops to arrest him. DVD's are next to useless in this regard.

If it's a DVD of Kill Bill, you can frisbee it across the room so it slices the miscreant's head off. Tarantino had the edges specially sharpened for the purpose.

Then it will not be wise to fling it the way I always flung misburned disks: hold like this O> between thumb and index finger. Squeeze and see it fly quite stable and quite directional. The method of throwing a ninja star might be more appropriate.
Mikeski wrote:A "What If" update is never late. Nor is it early. It is posted precisely when it should be.

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Re: 1439: Rack Unit

Postby PinkShinyRose » Wed Oct 29, 2014 9:50 am UTC

Neil_Boekend wrote:
ucim wrote:
PinkShinyRose wrote:The don't need to have the same dimensions for that, they could be slightly larger with each new format.
That would mean (for example) that a CD player that wanted to be able to play mp3s that happened to be on a DVD-ROM would have to accommodate the new size too, even if it didn't play video.


While I agree with you that wouldn't work either way. The laser frequency is different and that means that the CD player can't read the disc at all.

Still, PinkShinyRose: what would have been the advantage of making the discs differently sized?

People would see the difference between the discs and complain less about their CD drive not working. And maybe not ruin their 25th gen disc with a CD laser.

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Re: 1439: Rack Unit

Postby Neil_Boekend » Wed Oct 29, 2014 9:52 am UTC

That is a quite good reason.
Mikeski wrote:A "What If" update is never late. Nor is it early. It is posted precisely when it should be.

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Re: 1439: Rack Unit

Postby Klear » Wed Oct 29, 2014 12:18 pm UTC

People are still using CDs/DVDs/BRs?

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Re: 1439: Rack Unit

Postby orthogon » Wed Oct 29, 2014 12:21 pm UTC

Klear wrote:People are still using CDs/DVDs/BRs?

My lawn. Begone therefrom forthwith!
xtifr wrote:... and orthogon merely sounds undecided.

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Re: 1439: Rack Unit

Postby ucim » Wed Oct 29, 2014 1:52 pm UTC

Neil_Boekend wrote:While I agree with you that wouldn't work either way. The laser frequency is different and that means that the CD player can't read the disc at all.
Not an existing CD player, but a newfangled one that (also) has the new laser in it, but just doesn't decode video. Sort of like the way DVD-ROMs work. (Yeah, I know, some decode video too, but that's not the point.)

orthogon wrote:If it's a DVD of Kill Bill, you can frisbee it across the room so it slices the miscreant's head off. Tarantino had the edges specially sharpened for the purpose.
Ninja'd

PinkShinyRose wrote:And maybe not ruin their 25th gen disc with a CD laser.
CD lasers ruin DVDs? That's news to me.

Klear wrote:People are still using CDs/DVDs/BRs?
And VHSs And cassettes. I will admit I haven't used an LP in a while though. These things have two big advantages over what is now popular:

1: Higher quality (CD vs mp3)

2: When I play it, nobody keeps track (CD vs cloud, book vs nook)

3: The store can't steal it back (I'm looking at you, Amazon)

Oh wait - that's three.

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Re: 1439: Rack Unit

Postby Klear » Wed Oct 29, 2014 2:50 pm UTC

ucim wrote:
Klear wrote:People are still using CDs/DVDs/BRs?
And VHSs And cassettes. I will admit I haven't used an LP in a while though. These things have two big advantages over what is now popular:

1: Higher quality (CD vs mp3)

2: When I play it, nobody keeps track (CD vs cloud, book vs nook)

3: The store can't steal it back (I'm looking at you, Amazon)

Oh wait - that's three.

Jose


Hey, cassettes are awesome, but the disks? Really?

Besides, I was thinking more about data storage/transport.

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Re: 1439: Rack Unit

Postby PinkShinyRose » Wed Oct 29, 2014 6:04 pm UTC

ucim wrote:
PinkShinyRose wrote:And maybe not ruin their 25th gen disc with a CD laser.
CD lasers ruin DVDs? That's news to me.

No, that's not what I meant, 25th gen referred to the 25th generation of popular optical discs (I guess we're at 3 now), they must run out of laser frequencies that are useful and at a sufficient distance from all previous ones at some point.

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Re: 1439: Rack Unit

Postby ucim » Wed Oct 29, 2014 6:33 pm UTC

PinkShinyRose wrote:No, that's not what I meant, 25th gen referred to the 25th generation of popular optical discs (I guess we're at 3 now), they must run out of laser frequencies that are useful and at a sufficient distance from all previous ones at some point.
Nah, there's plenty of room in the x-ray region. :)

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Re: 1439: Rack Unit

Postby rmsgrey » Wed Oct 29, 2014 6:41 pm UTC

ucim wrote:
PinkShinyRose wrote:No, that's not what I meant, 25th gen referred to the 25th generation of popular optical discs (I guess we're at 3 now), they must run out of laser frequencies that are useful and at a sufficient distance from all previous ones at some point.
Nah, there's plenty of room in the x-ray region. :)

Jose


But significantly harder to focus and detect once you get to the "pass through anything" range...

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Re: 1439: Rack Unit

Postby Neil_Boekend » Wed Oct 29, 2014 7:24 pm UTC

I vote for electron beams. Single electron width electron beams.
Mikeski wrote:A "What If" update is never late. Nor is it early. It is posted precisely when it should be.

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Re: 1439: Rack Unit

Postby Garnasha » Thu Oct 30, 2014 9:25 am UTC

Klear wrote:People are still using CDs/DVDs/BRs?
This. Software (and any other data, really) distribution is internet-based, personal storage and data transfer through a physical medium (say, handing someone a .ppt, or projector-aspect-ratio .pdf if you want to do things properly) are best accomplished with usb sticks. Of course, now we need to patch a bug in the specification to close the corresponding security hole...
Neil_Boekend wrote:I vote for electron beams. Single electron width electron beams.
I'm foggy on which is which... you want every computer fitted with a miniature SEM? That WOULD be awesome. Anyone got an ETA on the tech to do that?

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Re: 1439: Rack Unit

Postby Neil_Boekend » Thu Oct 30, 2014 10:02 am UTC

Garnasha wrote:
Neil_Boekend wrote:I vote for electron beams. Single electron width electron beams.
I'm foggy on which is which... you want every computer fitted with a miniature SEM? That WOULD be awesome. Anyone got an ETA on the tech to do that?

thirty years
Mikeski wrote:A "What If" update is never late. Nor is it early. It is posted precisely when it should be.

patzer's signature wrote:
flicky1991 wrote:I'm being quoted too much!

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Re: 1439: Rack Unit

Postby cellocgw » Thu Oct 30, 2014 12:03 pm UTC

Neil_Boekend wrote:
Garnasha wrote:
Neil_Boekend wrote:I vote for electron beams. Single electron width electron beams.
I'm foggy on which is which... you want every computer fitted with a miniature SEM? That WOULD be awesome. Anyone got an ETA on the tech to do that?

thirty years


Thirty years! You'll be dead by then. Oh, wait, I forgot... :D
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Re: 1439: Rack Unit

Postby jpvlsmv » Thu Oct 30, 2014 8:07 pm UTC

PinkShinyRose wrote:
Neil_Boekend wrote:
da Doctah wrote:Don't tell me. BHG was the guy who decided that CDs, DVDs and Blu-ray discs should all have the same physical dimensions.

What's wrong with that? This way my blu-ray player can play all the older formats and my DVD player could play CD's. It saves a bunch of room in my devices stack.

The don't need to have the same dimensions for that, they could be slightly larger with each new format.

Or make them different shapes. Why do they all have to be round? I remember novelty writable CDs in various shapes.

Or even have the hub be a different characteristic shape -- CDs get a triangle hub hole, DVDs a square. Your basic combination CD/DVD player has a 12-pointed star spindle to handle either one. When you get a combination CD+DVD+GC+{DVD+R}+DVD-R+{DVD+RW}+DivX+HDDVD+PSP+BD+BD2K+BD4K, you've got a 16-dimensional manifold spindle that tries to invert your disk in seven as-yet-undiscovered dimensions (two of those dimensions are used to prevent piracy) when you load it.

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Re: 1439: Rack Unit

Postby Flumble » Thu Oct 30, 2014 8:37 pm UTC

jpvlsmv wrote:
PinkShinyRose wrote:
Neil_Boekend wrote:
da Doctah wrote:Don't tell me. BHG was the guy who decided that CDs, DVDs and Blu-ray discs should all have the same physical dimensions.

What's wrong with that? This way my blu-ray player can play all the older formats and my DVD player could play CD's. It saves a bunch of room in my devices stack.

The don't need to have the same dimensions for that, they could be slightly larger with each new format.

Or make them different shapes. Why do they all have to be round? I remember novelty writable CDs in various shapes.

Or even have the hub be a different characteristic shape -- CDs get a triangle hub hole, DVDs a square. Your basic combination CD/DVD player has a 12-pointed star spindle to handle either one. When you get a combination CD+DVD+GC+{DVD+R}+DVD-R+{DVD+RW}+DivX+HDDVD+PSP+BD+BD2K+BD4K, you've got a 16-dimensional manifold spindle that tries to invert your disk in seven as-yet-undiscovered dimensions (two of those dimensions are used to prevent piracy) when you load it.

I hate compact dimension DRM. :x

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Re: 1439: Rack Unit

Postby nerobro » Thu Oct 30, 2014 9:17 pm UTC

There may not be rules against bees and dogs.... There are also no rules against riding bicycles.

https://www.youtube.com/watch?v=JVdfYbi9Oww

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Re: 1439: Rack Unit

Postby cjmcjmcjmcjm » Fri Oct 31, 2014 2:47 am UTC

PinkShinyRose wrote:
Neil_Boekend wrote:
da Doctah wrote:Don't tell me. BHG was the guy who decided that CDs, DVDs and Blu-ray discs should all have the same physical dimensions.

What's wrong with that? This way my blu-ray player can play all the older formats and my DVD player could play CD's. It saves a bunch of room in my devices stack.

The don't need to have the same dimensions for that, they could be slightly larger with each new format.

Like a laserdisc?
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Re: 1439: Rack Unit

Postby WarnedOfStretchyDeath314 » Fri Nov 28, 2014 2:50 am UTC

madaco wrote:relevant homestuck quote:

"one of your BEEHOUSE MAINFRAMES. The silicomb was sliced clean through by your foolish maneuver. What were you thinking???

The workers pair up and dance angry messages to you in beenary code."

http://www.mspaintadventures.com/?s=6&p=003978


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Re: 1439: Rack Unit

Postby addams » Fri Nov 28, 2014 3:27 am UTC

Story wrote:What I'm wondering is how he managed to get past security in the first place.

This is Black Hat Guy.
He has his ways.

Security?
He walks in with 10,000 bees.

Who the Hell walks in like they own the place, with 10,000 Bees?
Black Hat Guy and about 10 other Google employees.
Google has a reputation for indulging its little smarty pants.

Besides.
Google has Bees, in Real Life.

No one at Google would question such a thing until the Internet Tubes start getting clogged up.

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How hard is it to get honey out of the internet tubes?
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Re: 1439: Rack Unit

Postby PM 2Ring » Sat Nov 29, 2014 11:18 am UTC

CapCouillon wrote:Thanks for the heads up... Just added to my standard Disclaimer/TOS

Spoiler:
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Hope this avoids the dreaded zero day exploit...


Nice. But you left out the old classic: "Do not fold, spindle or mutilate".

...

Neil_Boekend wrote:Then it will not be wise to fling it the way I always flung misburned disks: hold like this O> between thumb and index finger. Squeeze and see it fly quite stable and quite directional. The method of throwing a ninja star might be more appropriate.


...

Hey, you don't need to use the clumsy phrase "ninja star" here. I'm sure most xkcdians are familiar with the word "shuriken". :)

...

This thread reminded me of this old Stack Exchange blogpost, about the naming of the ServerFault site. Some people wanted to call it Rack Overflow...

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Re: 1439: "Rack Unit"

Postby Myself » Mon Jan 12, 2015 8:08 pm UTC

The vertical unit of rack spacing, 1 3/4 inches, happens to already have a name, too: It's an archaic Russian unit called the "vershok", I believe the plural is "vershki".

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Re: 1439: Rack Unit

Postby Neil_Boekend » Tue Jan 13, 2015 6:35 am UTC

PM 2Ring wrote:
Neil_Boekend wrote:Then it will not be wise to fling it the way I always flung misburned disks: hold like this O> between thumb and index finger. Squeeze and see it fly quite stable and quite directional. The method of throwing a ninja star might be more appropriate.
Hey, you don't need to use the clumsy phrase "ninja star" here. I'm sure most xkcdians are familiar with the word "shuriken". :)]

Sadly that doesn't mean the word is readily available to my damaged mind.
Mikeski wrote:A "What If" update is never late. Nor is it early. It is posted precisely when it should be.

patzer's signature wrote:
flicky1991 wrote:I'm being quoted too much!

he/him/his

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Re: 1439: Rack Unit

Postby Steve the Pocket » Fri Jan 16, 2015 9:29 am UTC

ucim wrote:
rmsgrey wrote:Greater storage capacity per disc?
That's an advantage of the format (DVD vs CD), not an advantage of making a DVD slightly bigger. And making it much bigger (a-la 12 inch videodisk) has many disadvantages.

Jose

The people who refused to adopt Laserdisc because they considered 12-inch discs to be too big were WIMPS. Wimps, I say! Same with the people who insisted on single-platter hard drives, forever dooming us to whatever the read/write speed of a 7200 RPM drive is when we could have been getting four times that much for far less than the ungodly prices of SSDs.
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