Element 14 Learning Videos

This one on (black) op-amps:


Now watch this:


Is there such a thing as a circular function generator? What I mean is a system which takes a square-wave or any other periodic signal input and produces a sinusoidal output voltage matching that input frequency. I imagine that it would consist of four op-amps acting as differentiators and integrators and connected in a loop which somehow uses opposite pairs to track a fixed point which is the exponential function:


and:


and:


Here's the simple square wave series:


This is not much more than han a low-pass filter. What I have in mind would be something more general:


At 12 minutes 41 seconds the Laplace transform characterises aperiodic signals, such as those you might expect to find in chaotic systems like fibrillating hearts and dripping taps:


See


and:


... also BlackPenRedPen's Laplace Transform Marathon! And for some ideas about how to find efficient ways to produce numerical solutions, and rigourous proofs of the methods, see The Right Way to Formalise Mathematics. Norman Wildburger has just produced a series of lectures on complex exponentials and complex polynomials.

Think of it as Tide-predicting machine No. 3, if you like: (see Tide-predicting machine and Tide-Predicting Machine No. 2,) which synthesizes signals matching its inputs.


See Hybrid Digital Analogic Music and Light Synthesis.


Angela Merkel has a PhD?! Really?


If not then maybe Cambridge should consider giving her an honorary doctorate for her work on electrical signalling:


See Mitochondria Batteries, then This is A Big Part of Our Problem and then this:


... then All About Eve - Lady Moonlight and Women Playing Hard Ball.


Now, Tide-predicting machine no. 4 is a global network of pairs of Tide-predicting machines No. 3. See these videos on differential signalling:


See Process Synchronisation by Communication, particularly the discussion on thermodynamics and reversible computational processes starting on page 18, and then look at Measuring Ignorance.

What I have given here is just a vague outline of what I think a progressive teaching and research programme might look like. See On Progressive and Degenerative Research Programs. What we need, to know what a progressive teaching and research programme actually looks like, is universal global access to secure telecommunications: see I'm Still Looking for A Job.

For more ideas about this, see Prof. Michael Peters' talks in Blueprint For Progressive Democrats.



And for more on being like water, and joblessness in General, see:


Comments

Post a Comment

Popular posts from this blog

Stefan Molyneux on Resource Based Economy

Image
This is an interesting discussion. What most people don't realise is that capitalism as we practice it now wastes 99.9% of the human and material resources we currently use. Once you realise that, the problems raised by the idea of gift or resource-based economies become much more tractable. At  10 minutes 30 seconds  the discussion turns to the way we treat our family and friends differently. We don't charge our nearest and dearest. At this point Molyneux brings in Neo-Darwinian evolution to explain why there is this difference between the way we treat our kith and kin to the way we treat everybody else. I guess he will go on to argue that this is because we evolved to be like this, otherwise we would not have survived. He will presumably say that this is human nature and because it is genetically determined, nothing we can do short of a programme of eugenics and euthenasia will change that. Well, ... you know what my answer to that will be, ... something along the lines:
Read more

Sabine Hossenfelder - Lost in Math

Image
Sabine's book,  Lost in Math published in 2018. See  Rebecca Smethurst on the Crisis in Cosmology . Here's an interview on the subject of the book: At 16 minutes 27 seconds on aesthetics in a theory. I think you should worry first and foremost about whether or not it works, otherwise you are not doing empirical science. At 19 minutes 19 seconds on whether there would be better ways to advance physics other than by building the next generation of super high-energy particle collider. This is similar to military spending and it's really just an artefact of Keynesian monetary theory: that you can create 'wealth' by employing men to dig holes in the road and fill them up again. Of course you are not creating real wealth, you are destroying it and creating fake money. The upshot is that the better ways of spending much, much less money on encouraging sound scientific teaching and research are not of any interest, because they don't employ nearly so ma
Read more

Nikola Tesla and the End of The World

Image
At  1 minute 21 seconds  the building in the background, in Trafalgar Square , as she says "There is a story in our family that my great grandfather worked with Nikola Tesla, ..." is ... ... what? Hint: it is near to a statue of George Washington, a replica donated by the  Commonwealth of Virginia in 1921 .  See  War Crimes . Watch all four episodes of  Nikola Tesla and the End of The World  and then watch this: And on the meaning of the word sovereignty see: On the Mason-Dixon Line, the "boundary of slavery" in the American colonies, it might be insightful to compare the  Britannica  and  Wikipedia  entries and see where they differ. Then, especially if you're my daughter, see  On Feminist Genealogy . Then see this documentary about Mark Knopfler and what motivates his music. There's a nice bit at  17 minutes  about where songs come from, and what happens to their origin, and the role of Town Planners like my father, in this process, part
Read more