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Voices From The Past
#1
Okay this is totally off topic from computers but is a reach out from technology of yesterday.

It is a Youtube video about humans beginning to record audio.  It even has samples from the 1850's to 1890's.  It goes back in time getting earlier as the video goes on.  Some of the recordings were originally performed on paper but with modern techniques we can now hear voices of yesteryear.

I think it is pretty incredible.  If you are interested the video link is below.

FIRST SOUNDS: Humanity's First Recordings of Its Own Voice

https://www.youtube.com/watch?v=75UrxueiP-4
Jeremy (Mr. Server)

* Desktop: Ubuntu MATE
* Windows are for your walls, Apple is for your health, Linux is for your computer
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#2
It's not entirely off topic as those recordings are the very beginnings of the recording technology we use today in hard drives and cd/dvds.
BTW the first one I have heard before it is made with lamp black (soot) as the medium.
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#3
Very interesting,another use for soot.
LinuxMint 19.2 (Cinnamon)
Lenovo B570
Intel Pentium B950
circa 2009
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#4
Back in the days of steam a glass disk was attached to the crankshaft and a pressure bellows driving a pin was used to trace the pressure vs angle on soot on the glass disk. Think early occsilloscope. Steam engines are not crude.
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#5
Our culture is still powered by steam engines.  That is what most power plants are today.  Whether it is coal, LNG, nuclear, etc.  It is about heating water to create steam which turns the turbines.  Also nuclear power ships work along the same principle.  Steam is used by US carriers to launch aircraft.  So yeah steam engines are not out dated.  They are very much with us today.  Smile
Jeremy (Mr. Server)

* Desktop: Ubuntu MATE
* Windows are for your walls, Apple is for your health, Linux is for your computer
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#6
Speaking of steam engines being old fashioned (which they are not) reminds me alot of when I watch shows on "ancient" technology and they are always saying that so and so were a thousand years ahead of their time and it never occurs to them that maybe we are a thousand years behind, newer is not always better.
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