01-22-2021, 02:16 PM | #91 | |
Join Date: Feb 2005
Location: Berkeley, CA
|
Re: Calculating Technological Regression from Global Thermonuclear War
Quote:
|
|
01-22-2021, 02:25 PM | #92 |
Join Date: Jan 2005
Location: Gothenburg, Sweden
|
Re: Calculating Technological Regression from Global Thermonuclear War
IIRC, there was a large coronal mass ejection in the 19th century and a lot of telegraph stations caught fire.
__________________
When you arise in the morning think of what a privilege it is to be alive, to think, to enjoy, to love ... Marcus Aurelius |
01-22-2021, 03:23 PM | #93 | ||
Join Date: Dec 2020
|
Re: Calculating Technological Regression from Global Thermonuclear War
Quote:
Quote:
Theproblem is the finer the structures, the easier they are damaged, it takes a lot more for a telegraph wire to catch fire, than for a structure thatīs measured in nm. As for the VHS, sorry but I asked my Prof and some engineers, the answer was always, due to earth geomagnetic fields all data safed by magnetic means will lose over time the data stored there. By the way this casettes have been stored in the house. Away from mayor electronic equipment, and protected from moisture and direct solar radiation, just to be save. We know all the coils of magnetic tape that was once used to store electronic data, they also will suffer over time. Even if there is no earth magnetic field, the plastic used to make them will degrade, of course this can be slowed by storing them under good protection from heat, sunlight and so on. But for example the plasticizer will gas out and make them brittle. A big problem after the bomb fell for the rebuildig effort is to get the equipment and computer programs to read the storage mediums, just remember how many old computer languages are nearly extinct now along with the people who used them, that was even in Y2K a big problem, to much computer programs to edit but never enough people who could do this. Just think that the serious rebuilding will start after a generation or two, how much knowledge can be preserved and teached by the survivors ? There is actually a project that has as goal to preserve the human knowledge, they use another way. The storage medium is a disc of a very durable alloy, with normal eyesight you get the information in pictograms to builds a magnifying glas. With that you can read the instruction to make a microscope, with that you can read..... until you can build a computer to read the final info. Thatīs a possible way to store safely knowledge for the time after doomsday, for all other people a book is a source of knowledge that neiter needs electricity nor other equipment. Last edited by Willy; 01-22-2021 at 03:35 PM. Reason: spelling error added example |
||
01-22-2021, 03:32 PM | #94 |
Join Date: Feb 2016
|
Re: Calculating Technological Regression from Global Thermonuclear War
Yes, hemp paper is probably the best form of record keeping, as it can survive for centuries if properly stored, while most forms of magnetic storage decay within a few decades even if properly stored. Disc rot is especially annoying to those of us who remember promises of eternal storage from CDs.
|
01-22-2021, 03:56 PM | #95 | |
Join Date: Feb 2005
Location: Berkeley, CA
|
Re: Calculating Technological Regression from Global Thermonuclear War
Quote:
|
|
01-22-2021, 04:15 PM | #96 | |
Join Date: Dec 2020
|
Re: Calculating Technological Regression from Global Thermonuclear War
Quote:
Last edited by Willy; 01-22-2021 at 04:15 PM. Reason: spelling error |
|
01-25-2021, 09:42 AM | #97 |
Join Date: Oct 2007
|
Re: Calculating Technological Regression from Global Thermonuclear War
For long term knowledge preservation:
https://www.memory-of-mankind.com/ https://en.wikipedia.org/wiki/Memory_of_Mankind Million years plus. |
|
|