Well that was nuts! 2 bit da vinci didn't let up for a second!
What I got was a sort of huge advert for the Roboroc cleaning machine and the Mythic analog processor. Mixed in with some plausable stuff about analog and digital processing.
Usual internet HOEY IMO. 🙁
Youtube also served up stupid adverts for improving your memory at age 70 and how rubbing icecubes on your wrist will fix vision problems. I am sure these charlatans are after our money.
The maths or science was well presented, and I know about analog and digital signal processing. Did it at College in an electronics context. But really who is this 2 bit Da Vinci guy?
We know nothing about him or why we should trust him. Maybe he is computer generated?
I'd rather get back to Gravity, frankly. Personally I liked Galu's last post.
Best, Steve.
Actually flash memory already makes use of the feature he mentions. Originally it was single level. Highly reliable as more margin for voltage drift. Later comes multi level where a single cell can store several values. This gives more storage capacity for a certain area of silicone. Triple level has been around for a long time now. The different values relate to voltage from the cell. Levels now - pass.
I have sometimes wondered if the 1/0 binary functioning of computers is the best way to do things. A three state computer might be interesting.
Sorry, hard to explain briefly, so I won't try.
I looked up the Mythic Analog Processor, and it turns out it actually exists:
https://www.wired.com/story/unbelievable-zombie-comeback-analog-computing/
Which surprised me. It's still very tentative and seems to rely on differential equations. I think I get the idea that the analog processor makes a rough guess on the answer to certain problems, and the digital device then zooms more quickly and efficiently in to an exact answer.
All a bit weird, but Mythic may be onto something. It's called an iterative method in mathematics. But I still found Two Bit Da Vinci irritating to the max. Didn't you? 🙂
Sorry, hard to explain briefly, so I won't try.
I looked up the Mythic Analog Processor, and it turns out it actually exists:
https://www.wired.com/story/unbelievable-zombie-comeback-analog-computing/
Which surprised me. It's still very tentative and seems to rely on differential equations. I think I get the idea that the analog processor makes a rough guess on the answer to certain problems, and the digital device then zooms more quickly and efficiently in to an exact answer.
All a bit weird, but Mythic may be onto something. It's called an iterative method in mathematics. But I still found Two Bit Da Vinci irritating to the max. Didn't you? 🙂
Very funny! 😀
P.S. Your posts lead me to believe there is no '?' mark symbol on your computer keyboard!
The Veritasium guy did a video two years ago in which he said essentially the same thing in the first three minutes, and then goes into detail. The two-bit guy does talk down to the viewer much more than this guy.
Here's an amazing machine that may have been lost in history without this guy's interest and the effort he took to study and document it. You can download the book in pdf, but watching the videos may be as instructive. Surely physics buffs will recognize the name of the inventor.
https://engineerguy.com/fourier/
https://engineerguy.com/fourier/
The tides are a bit more complex than the video suggests. The coast and water depth etc alter the flow rates. From memory many years of monitoring is used to predict it. The tables may show a tide time offset from a particular place or a list of specific places dotted around the coast.
Can't find a general page on differences but this mentions a couple of specific aspects
https://www.tidetimes.co.uk/news/tidal-variation-in-the-uk/
The Bristol Channel is a bit of an oddball due to the Severn. 😉 Bad choice without an explanation.
IMO the video ”Analog computers are about to take....” is obnoxious BS. Should better be named "anal log."
Every computer is bascically 3 state computer. 0' s are not defined by 0v. Theres some voltage still there. Bascically it
0v for no power
1.5v for low level
5 v for high level
0v for no power
1.5v for low level
5 v for high level
Binary can run into a problem in that area due to limited precision. Say something is tracked this way and the end result should be a change of zero. It will generally never achieve that exact value. It will just bounce around it so the zero check has to be a range around zero.
🙂 It's interesting to consider the term operational amps and why that name was chosen.
No its not as a computer is a logical entity so that don't matter as it only compute by 2 states. You confuse it with the electrical situation among circuits...
//
In a PC's main memory a binary zero is represented by one voltage range above and including zero and a 1 by a higher level that includes what ever voltage the memory chip runs on. This type of memory looses it's content if power is removed.
These analogue computing ideas are rather different - several voltage levels in a memory cell that represent different binary numbers. The type of memory used also doesn't loose it's contents when power is withdrawn. 🙁 However it does wear out. That currently relates to the number of voltage levels that are used.
3-voltage level (not to be confused with 3 state which has a disconnect mode) logic is STILL digital As opposed to analog. Wouldnt matter if it were 64 or even 128 discrete levels stored in memory. Still digital because of the discretization. When you go to look it up, it’s going to be ASSIGNED a value - there is no in between or interpolating. Digital radio modulation works that way - as many as 256 discrete phase states, each representing a unique bit combination. Simpler forms used back in dial up modem days used only 4 but it was the same idea. Bandwidth and signal/noise requirements go up as you cram in more bits. Binary with two only states works well because of the noise immunity. But as the amount of data being moved got out of control, the number of logic cells has gone from the ridiculous to the sublime. 64 bit processors are pretty much the standard now. Can you even buy a Z80 anymore?
We could talk about the complicated gravitational pulls of the Moon and Sun or simply believe the Flat-Earthers:
"Tides are caused by the gentle and gradual rise and fall of the earth on the bosom of the mighty deep." - T.L. Cullingworth, 'Zetetic Cosmogony', 1899.
This interpretation, they say, explains why the water levels in swimming pools, ponds and puddles don't rise and fall!
@Mister Audio. You have sent this thread down a particularly interesting rabbithole with this Analog business!
Here's part two of the Veritasium presentation:
This is knockout stuff! It never occured to me you could do maths (Calculus) with analog electronics. Chaos theory:
Damped Harmonic Oscillator:
I want one of these Mythic Chips! 🙂
Here's part two of the Veritasium presentation:
This is knockout stuff! It never occured to me you could do maths (Calculus) with analog electronics. Chaos theory:
Damped Harmonic Oscillator:
I want one of these Mythic Chips! 🙂
To find peace, and also luck in "physics", in "science":
In order to develop the theories of relativity, Einstein began by observing movement. Two systems move in relation to each other. An observer is part of one these systems. Unfortunately, he forgot to set a second observer as part of the observed, second system. So he did not realize that these two observers were making identical observations: The observations are mirrored. And therefore not physical and not scientific;-) All theories of Einstein's relativity collapse here, already at its beginning. Whether theses and mathematics, observations (exacter interpretations claimed as observations), whether dark matter, black holes, wormholes, an expanding universe... all fairy-tale figures in a fairy-tale world. Nonsense since the first step;-)-;
All my best wishes for you all and all your beloved for 2024;-)