TIL glass is not supercooled liquid after all.
There's a good Veratasium video about that [1]. But the short version is that glas is pretty much a solid, and lead is much more liquid at room temperature than glas.
Glass discs that can store 360TB and remain intact for billions of years (2016)
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Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#72I dunno, but it seems to me universities increasingly focus on press releases and marketing departments... 5D and 13.8 billion years? Phony. I know no sane scientist or enigneer that would say they use more than 3D physics. Sounds like catch phrases to sell. With such logic plain old HDD is at least 4D, because it uses CHS coordinates and magnetic orientation, to store data. To me such communication style undermines…
Yeah isn't this '5D' yet another eye grabbing title? I think size and orientation are still 3D data.
And yet, in machine learning we regularly talk about dimensions 100 and above!
Just because they eventually map to three special dimensions doesn’t mean it’s not useful to talk about the different degrees of freedom you’ve managed to use for storing information.
What were y’all expecting? Spider-Man: Into The Spiderverse?
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#73Earlier quoted context omitted.
Just speculating, but if you can index in 5 dimensions to get your data, should it not be called 5D? data = read_bit(x, y, z, yaw, size) But i agree, i would appreciate more information if they are going to use buzz-words.
That seems more like five degrees of freedom than five dimensions.
Aren't they synonyms?
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#74Earlier quoted context omitted.
Just speculating, but if you can index in 5 dimensions to get your data, should it not be called 5D? data = read_bit(x, y, z, yaw, size) But i agree, i would appreciate more information if they are going to use buzz-words.
That seems more like five degrees of freedom than five dimensions.
Ya but that’s pretty much the same thing. Surely mathematically it’s the same thing.
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#75Because someone is around to check.
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#76I don't know but the article does not talk about the credibility of the claim. I mean even the way they have described the whole thing feels more like a marketing attempt than an actual scientific breakthrough.
If you look at other articles of this website, they will seem more like a lame attempt at getting traffic than to provide something useful.
They have articles titled like - "Ladies Get dose of Radiation From Government UFO" and "Hackers, UFO's and Secret Space Programs - Oh My!"
I mean, this does not feel like an information source I'll trust.
Edit: As others are mentioning in this thread. From a researcher's perspective, they should have also talked about the read/write capabilities.
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#77Seems a bit of a waste to dedicate an entire 360TB disc to a single text document like a bible, which is probably just a few KBs... /s More seriously, they don't talk about reading capabilities (retrieval speed etc). And what if it gets scratched? What is the error tolerance? At that density, a single speck of dust could have dramatic implications... I hope this reaches industrial viability, because we desperately ne…
Yeah, actual museum-grade archival is so much more than just having an aging-resistant media. You also need to be able to read and decode it many years into the future, which is really tricky to guarantee - you can't assume the future generations will know how to make a reading device and remember your formats/encodings. So it's a bit like unzip.zip problem.
This is where things like microfilm have an advantage- the only knowledge needed to decode it is magnification and the language it’s written in.
I’ve been wondering lately how well you could do with a microfilm strip full of 2d barcodes prefixed by an optical copy of the relevant specifications.
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#78I dunno, but it seems to me universities increasingly focus on press releases and marketing departments... 5D and 13.8 billion years? Phony. I know no sane scientist or enigneer that would say they use more than 3D physics. Sounds like catch phrases to sell. With such logic plain old HDD is at least 4D, because it uses CHS coordinates and magnetic orientation, to store data. To me such communication style undermines…
And the picture they release show the christian bible. Tells you everything you need to know about them really.
So the fact that the demonstration disc they chose to use in a photo for the article happens to be the Bible (the first book ever printed and most printed) tells you "everything you need" about "them"?
No wonder public discourse is so terrible nowadays, when people are willing to dismiss entire institutions based on an arbitrary image in a press release. But, I guess that's just a step or two removed from asking someone to be fired because one time they interviewed or were seen with someone else who's opinions you don't agree with.
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#79I dunno, but it seems to me universities increasingly focus on press releases and marketing departments... 5D and 13.8 billion years? Phony. I know no sane scientist or enigneer that would say they use more than 3D physics. Sounds like catch phrases to sell. With such logic plain old HDD is at least 4D, because it uses CHS coordinates and magnetic orientation, to store data. To me such communication style undermines…
If you make a market out of everything, the marketing departments will rule the day...
Re: Glass discs that can store 360TB and remain intact for billions of years (2016)
#80I dunno, but it seems to me universities increasingly focus on press releases and marketing departments... 5D and 13.8 billion years? Phony. I know no sane scientist or enigneer that would say they use more than 3D physics. Sounds like catch phrases to sell. With such logic plain old HDD is at least 4D, because it uses CHS coordinates and magnetic orientation, to store data. To me such communication style undermines…
Heh, that number is suspiciously close to the age of the Universe. Phony indeed.
"WMAP estimated the age of the universe to be 13.772 billion years, with an uncertainty of 59 million years. In 2013, Planck measured the age of the universe at 13.82 billion years."