Very happy to hear you saying this, well, this is science not magics : Evanescent field https://en.m.wikipedia.org/wiki/Evanescent_field
In electromagnetics, an evanescent field, or evanescent wave, is an oscillating electric and/or magnetic field that does not propagate as an electromagnetic…
Thanks for these kind words Mr C. Happy.
(I know there must be a joke and I’m sorry that I do not get it. I have a lot of difficulty to grasp many jokes. Thanks anyway.)
The line “I like your funny words, magic man” is from this scene from Clone High. People use it when they want to show they don’t understand what was said but appreciated it none the less. CrackHappy changed it to “magnet man” because they are least got that much from what you were saying.
Aaah ! that’s why ! Thanks :)
People wouldn’t believe but since 10 years I’ve watched maybe 5 to 10 hours (total) of video including YouTube, TV and whatever. Also went to cinema maybe five times.
This would absolutely make sense. Unfortunately, they don’t say whether or not (it’s 3D) in the article. Well … they do describe it as a microscopic QR code which is 2D.
A CD, a conventional CD manufactured in a CD pressing plant, could be basically etched instantly, it would go into a holder and all the pits would be etched at the same time. These machines were of course fantastically expensive though, they had to make 100,000s of CDs to make it worthwhile.
The etching process works twice, ethcing each pit and then verifying it before going onto the next. I doubt this could be done at a fast speed with equipment that was within the price range of say, a state library. I think the author has confused the access time with the writing time.
Say, 8 Tbits/cm² (so 1 TB/cm²) …
this is aprox ( 10-7m )2 unit cells.
Conventional optical microscopy cannot resolve this, so, maybe they are using evanescent surface optics ?
I like your funny words, magic man
Very happy to hear you saying this, well, this is science not magics :
Evanescent field
https://en.m.wikipedia.org/wiki/Evanescent_field
In electromagnetics, an evanescent field, or evanescent wave, is an oscillating electric and/or magnetic field that does not propagate as an electromagnetic…
I like your funny words, magnet man.
Thanks for these kind words Mr C. Happy.
(I know there must be a joke and I’m sorry that I do not get it. I have a lot of difficulty to grasp many jokes. Thanks anyway.)
The line “I like your funny words, magic man” is from this scene from Clone High. People use it when they want to show they don’t understand what was said but appreciated it none the less. CrackHappy changed it to “magnet man” because they are least got that much from what you were saying.
Aaah ! that’s why ! Thanks :)
People wouldn’t believe but since 10 years I’ve watched maybe 5 to 10 hours (total) of video including YouTube, TV and whatever. Also went to cinema maybe five times.
Missing the odd pop culture reference is understandable in that case haha
🤣
I think it’s 3dimensional not 2
This would absolutely make sense. Unfortunately, they don’t say whether or not (it’s 3D) in the article. Well … they do describe it as a microscopic QR code which is 2D.
Good question. “Everything was built with CoTS components”… Hmm.
A CD, a conventional CD manufactured in a CD pressing plant, could be basically etched instantly, it would go into a holder and all the pits would be etched at the same time. These machines were of course fantastically expensive though, they had to make 100,000s of CDs to make it worthwhile.
The etching process works twice, ethcing each pit and then verifying it before going onto the next. I doubt this could be done at a fast speed with equipment that was within the price range of say, a state library. I think the author has confused the access time with the writing time.
Yes I agree : they must have a very expensive, very powerful and very precise writing device.