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Bedlam
mbkennel
(1945 was not quite randomly making diodes, maybe late 1800's).
The Rad Lab history is pretty specific - they made a lot of them but only a few would work and you had to hand pick to get the one or two per batch that were useful for radar work, then they wouldn't necessarily STAY useful. It was a problem with materials engineering. To me that's random.
That's because the last 350 years has had an extraordinary rate of change, and this is slowing significantly now that fundamental understanding of chemistry & physics on ordinary space and energy scales has been successfully accomplished.
If you gave someone a current technology IC in 1945, perhaps a handful of Intel Atom devices, even if they understood point contact diodes, I am sure you would not know what it was for out of context. Even in context, I'm pretty certain they didn't have instrumentation that could give you a picture of what was going on in the circuit outside the chip, much less inside. It might give you a hint that certain things could be done, but how it was doing so is not something that would be immediately obvious.
I think the most accurate scene in recent sci-fi was that one from Independence Day where Brent Spiner is asked what they learned in the last 40 years about the flying saucer and he replies something like "Not much - we learned how to turn some systems on and off but we don't understand the basic operating principles".edit on 7-3-2014 by Bedlam because: (no reason given)
mbkennel
I think we're discussing different things. You're thinking "reliable assembly-line commercial product" and I'm thinking "general physical principles suspected to be important in certain systems". In the sense of 1944 finding a future chip and recognizing semiconductor junctions, yes, they would be at the stage of being able to think of the concept unlike 1744.
Because one assumes space buddies still use the same laws of physics. Newton was the boot-loader of those 350 years. That change from near total ignorance to now will never happen again.
Yes. A national level effort would reveal semiconductor traces and hints of computational circuits, and then people would be highly motivated to make the same, which they would at a much much cruder line width after 10 years. They wouldn't be able to program the CPU of course. But they would invent a semiconductor-based digital circuit.
Bedlam
Everything cranky invokes Tesla at some point. It's sort of a conspiracy theory Godwin's Law.
Bedlam
If you wait around until 1965 or so, you would have a SEM you could buy that would show you the details, I guess if you were the CIA you might have gotten Cambridge to knock you a prototype together in 1947 or so, but would you have guessed that the detail-less mishmash you were seeing in the light microscope would resolve to a wonderland of little fins and layers of material invisible still to the SEM? The oxide layers aren't visible to even 1960's SEMs, and the channel depth isn't much better. But at least you could see that there were still more structures down there, I suppose, even if you couldn't really tell WHAT in 1960, looking at 2013 parts.
Because one assumes space buddies still use the same laws of physics. Newton was the boot-loader of those 350 years. That change from near total ignorance to now will never happen again.
As Robert Duvall once said, "That's bold talk for a one-eyed fat man". What if the LSBs use something unexpected - maybe switching nodes that depend on some creepy quantum interference crap?
Quantum dot logic is de rigueur in the secret squirrel labs right now, but what if you could take that a step farther and use, I dunno, state collapse switching in some QDL analog? Not trying to be rigorous here. Just that LSB tech could look like a mysterious dog's breakfast of something you couldn't properly instrument that wasn't obvious to the glance.
Yes. A national level effort would reveal semiconductor traces and hints of computational circuits, and then people would be highly motivated to make the same, which they would at a much much cruder line width after 10 years. They wouldn't be able to program the CPU of course. But they would invent a semiconductor-based digital circuit.
You might be able to dissolve the thing and spot that there was arsenic, boron and the like in there, maybe you'd infer it was a semiconductor and those were dopants, but I'm not sure you could directly *know* that it was, seeing that at the time, you couldn't really see down to the size of the junctions used.
Maverick7
It's utter nonsense.
You can't reverse engineer alien vehicles. You must have the methods they used to produce the equipment and technology. Without it you have nothing.
Zaphod58
reply to post by Laykilla
But it's still a television. They will know what they are if you take one back. If you saw an antigravity field and had no idea how it works you wouldn't be able to recreate it.
Zaphod58
reply to post by roguetechie
Oh sure, another way to skin a cat will certainly help with sonething like say an antigravity field, or inertial damping field. There's no need to know the nuts and bolts.