• AVR Freaks

Helpful ReplyHot!True Random Number in Range For a PIC24 Chip ??

Page: < 12 Showing page 2 of 2
Author
crosland
Super Member
  • Total Posts : 2041
  • Reward points : 0
  • Joined: 2005/05/10 10:55:05
  • Location: Warks, UK
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 11:12:48 (permalink)
4 (1)
dan1138
A chaotic system is not random but is complex enough to appear random.



I've tried to explain this so many times, to so many people grin: grin
#21
dan1138
Super Member
  • Total Posts : 3825
  • Reward points : 0
  • Joined: 2007/02/21 23:04:16
  • Location: 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 11:19:53 (permalink)
5 (1)
WeHongKongers(aka HKPhysicist)
dan1138
A chaotic system is not random but is complex enough to appear random.

You are a paranoid if you refuse that throwing a Dice cannot get a Random natural number between 1 to 6.

You really do not seem to see the differences between chaotic and random systems. A physicist should be able to recognize an opportunity learn something new.

WeHongKongers(aka HKPhysicist)
How did they grind the Hubble Telescope's main mirror?  Did they throw 1 billion of ants on the prototype and let them polish the mirror?

When is comes to the Hubble Telescope's main mirror mistakes were made.

https://www.nasa.gov/content/hubbles-mirror-flaw

https://www.newscientist....-hubble-mirror-fiasco/

https://www.space.com/158...e-space-telescope.html
post edited by dan1138 - 2020/06/29 11:21:04
#22
WeHongKongers
Super Member
  • Total Posts : 239
  • Reward points : 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 11:25:31 (permalink)
0
Because there is no such observable "Random" in physics.
 
We use a particular physical term "Entropy". LoL: LoL
 
You even cannot find any physicist who uses the word "Random" to describe Quantum Mechanics.  LoL: LoL
 
#23
dan1138
Super Member
  • Total Posts : 3825
  • Reward points : 0
  • Joined: 2007/02/21 23:04:16
  • Location: 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 12:22:13 (permalink)
5 (1)
WeHongKongers(aka HKPhysicist)
Because there is no such observable "Random" in physics.
 
We use a particular physical term "Entropy".
 
You even cannot find any physicist who uses the word "Random" to describe Quantum Mechanics.



As a physicist could you please inform me of how the measurement a chaotic event is different from that of the decay event of a radio isotope?
post edited by dan1138 - 2020/06/29 12:48:13
#24
WeHongKongers
Super Member
  • Total Posts : 239
  • Reward points : 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 13:24:24 (permalink)
0
Dan,
You have mixed up the concept of "uncertainty", "non-deterministic", "randomness", etc. LoL: LoL
 
You have to find some good books written by Feynman, Pauli, ..., etc.  I can't do better than they did.
 
Feynman's Lectures are great!  They are free to read now on the web.
https://www.feynmanlectures.caltech.edu/info/
 
 
 
#25
WeHongKongers
Super Member
  • Total Posts : 239
  • Reward points : 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 13:29:37 (permalink)
0
Volume I should answer your questions.
#26
dan1138
Super Member
  • Total Posts : 3825
  • Reward points : 0
  • Joined: 2007/02/21 23:04:16
  • Location: 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 16:14:48 (permalink)
4.5 (2)
WeHongKongers(aka HKPhysicist)
You have to find some good books written by Feynman, Pauli, ..., etc.  I can't do better than they did.

You have avoided making an answer to my question on measurements and suggested I should read it for myself.
 
This I will endeavor to do, but I must admit another motivation beyond that of receiving information.
 
My secondary interest was if you would seek to inform another based on your own knowledge. This I have come to understand is called teaching. Now I'm left me with the impression that you either will not or cannot teach me this.
 
Thank you for your time and tolerance.
#27
LdB_ECM
Super Member
  • Total Posts : 434
  • Reward points : 0
  • Joined: 2019/04/16 22:01:25
  • Location: 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 20:12:08 (permalink)
0
The amusing part of this whole thread was everyone concentrated on the random number generator and didn't stop to consider he is feeding it into a stepper motor which quantizes it to the rounded step of fixed resolution of movement. He has a fixed grid no matter what he does :-)
post edited by LdB_ECM - 2020/06/29 20:16:17
#28
dan1138
Super Member
  • Total Posts : 3825
  • Reward points : 0
  • Joined: 2007/02/21 23:04:16
  • Location: 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/29 20:20:54 (permalink)
5 (1)
LdB_ECM
The amusing part of this whole thread was everyone concentrated on the random number generator and didn't stop to consider he is feeding it into a stepper motor which quantizes it to the rounded step of fixed resolution of movement :-)

It's been mentioned, but the original poster does not provide enough details about the mechanism used to polish the mirrors. This has let the topic loose focus.
#29
WeHongKongers
Super Member
  • Total Posts : 239
  • Reward points : 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/30 11:10:23 (permalink)
5 (1)
Dan,
According to your interest, these chapters should be read.  Feynman is one of the best teacher of our age.  What do you expect more?
Measurement is a crucial subject in physics.  Simple answer is not possible.  Nowadays, a crucial experiment costs up to many billion dollars, many scientists and many years.  Don't be so greedy.  LoL: LoL
 
Volume I:
Chapter 37.Quantum Behaviour
Chapter 38.The Relation of Wave and Particle Viewpoints
Chapter 39.The Kinetic Theory of Gases
Chapter 40.The Principles of Statistical Mechanics
Chapter 41.The Brownian Movement
Chapter 42.Applications of Kinetic Theory
Chapter 43.Diffusion
Chapter 44.The Laws of Thermodynamics
Chapter 45.Illustrations of Thermodynamics
 
#30
dan1138
Super Member
  • Total Posts : 3825
  • Reward points : 0
  • Joined: 2007/02/21 23:04:16
  • Location: 0
  • Status: offline
Re: True Random Number in Range For a PIC24 Chip ?? 2020/06/30 12:36:12 (permalink)
0
WeHongKongers(aka HKPhysicist)
Dan,
According to your interest, these chapters should be read.  Feynman is one of the best teacher of our age.

Whenever I have worked through any of Dr. Feynman lectures I've come to some new understandings. When I did these lectures the first time perhaps I was too young. After gaining a larger body of experience that living in the world brings more of what he was teaching becomes accessible.
 
WeHongKongers(aka HKPhysicist)
What do you expect more?

Well I did expect to gain an insight into what you know and what you can explain.
#31
Page: < 12 Showing page 2 of 2
Jump to:
© 2020 APG vNext Commercial Version 4.5