Kitchen sponges can be used as memory devices(nature.com) |
Kitchen sponges can be used as memory devices(nature.com) |
how far off am I?
Indenting with a metallic indentor gives a quite distinct
response in both of these phases. In the elastic phase, the sponge
regains its original shape following unindentation over a timescale
t given by the relaxation timescale of the visco-elastic polymeric
material. For the polymeric materials used, the relaxation time-
scales are of the order of 100 s and the material recovers fully
leaving no trace of damage. In contrast, the pseudo-plastic phase
retains a permanent deformation as the relaxation timescale
effectively goes to infinite due to frictional locking. This deforma-
tion memory can be erased by removing the external strain field
allowing the pseudo-plastic zone to transit back into the elastic
zone through the removal of applied global stress on the sponge.
Wet the sponge to store 1. Get the water out to store 0.
Did you know you can use coins as memory? Stack them together to remember numbers.
Big silicon hates this one trick.
- What truth?
- The Monad
But in all seriousness, I think the research matters because they aren't just concerned with what can hold information, but also suggest looking at what does hold information that is actually used for some biological purpose.
I don't believe aluminium foil is cellular or polymeric in structure.
You can count in binary using your fingers ¯\_(ツ)_/¯
You could use pine needles to count.
You could do steganography in knitting.
You could encode information in the dust collecting behind your tv furniture...
The topic has no place on HN.
Or perhaps it shows HN wears no clothes. No one knows what it it, yet here it is on the front page. There is zero reason to think there is any higher meaning to HN if we work it out.
Is there any reason the think HN is better on topics they know or should know?
It could well be babble. To me it feels like a obfuscation of something well studied.
The author has worked on "rejuvenation of decontaminated N95 masks" which you can see how you might want to delete the memory. Not saying the topic is bad, but still think this paper is publish or perish.