Have you an example of a western invention not based on existing technology?
That was invented by Jagadish Chandra Bose in Bangladesh, who built working millimeter-wave radios using Schottky diodes in 01894. Of course, he didn't understand the quantum effects, but then, semiconductor diodes were in wide industrial use (mostly in the rich West) for decades before Shockley's Equation in 01949.
The quantum theory was largely a Western discovery during those 55 years, but also included significant contributions from non-Western people like Shinichiro Tomonaga, Yoshiro Nishina, Leo Esaki, Tsung-Dao Lee, Hideki Yukawa, and Hantaro Nagaoka, and of course since 01949 quantum theory has been a field of investigation dominated by non-Western people. As you may be aware, there have been significant improvements in solid-state electronics since 01949, including full-color LEDs that permit LED lighting (due to Shuji Nakamura) and the switch to MOSFETs (due to Mohammed Atalla and Dawon Kahng, who were not from the West but were in the West) which eliminated the power consumption barrier that restricted 01960s electronics to dozens of transistors on a chip.
China in particular has had a pretty bad couple of centuries, in between being invaded by the US, England, Germany, France, Italy, the Netherlands, Spain, Belgium, the Austro-Hungarian empire, Russia (twice), and Japan (three times), having two of the most ruinous civil wars in human history, and having the worst famine in human history. So it's been innovating a bit below par, though it seems to be doing okay now.
> What about exploiting the behavior of charge carriers in vacuum? There you have the whole vacuum tube industry.
It does seem that the whole cathode-ray thing was a Western discovery, but it was built on the Hindu ayurvedic techniques of mercury distillation that formed the basis for Arabic and then Western alchemy (necessary for the Sprengel pump, which was for decades the only source of a hard enough vacuum); also, building the apparatus drew on the Mesopotamian techniques of glassmaking, which are usually considered to hail from Asia Minor, though some believe they originated in Egypt.
(It's possible that the Hindus imported the techniques of mercury distillation from China, but that is far enough back that it's difficult to know. At any rate, the Europeans got them from the Arabs, who got them from the Hindus.)
Is there a specific esoteric or cabbalistic reason to prefix the number of bygone summers with a zero? Both make for invalid octadecimals and have broken my builtin parser.
The effect in question was discovered by a German two decades earlier: https://www.computerhistory.org/siliconengine/semiconductor-...
> and of course since 01949 quantum theory has been a field of investigation dominated by non-Western people. As you may be aware, there have been significant improvements in solid-state electronics since 01949
Not quite sure how that matters for the question I was answering, which was emphatically NOT "is there a field of inventions historically wholly monopolized by the west". The question was for "AN example of a western invention not based on existing technology" - one would be sufficient.
> but it was built on the Hindu ayurvedic techniques of mercury distillation
?????? We're not talking about pseudoscience here.
Oh hey, you're right. So Bose only invented the use of the effect for radio, not the Schottky diode itself. I stand corrected.
> ?????? We're not talking about pseudoscience here.
Mercury distillation is not pseudoscience; like glassblowing, it was an existing technology that was a basis for the vacuum-tube age. Of course, if you trace any technology back, you will find that its origins are mixed with pseudoscience; Semmelweis promoted handwashing because he was convinced disease was caused by cadaveric particles, Priestley invented water carbonation because he was convinced scurvy was a carbonated water deficiency, etc. Naturally enough, mercury distillation seems to have been invented by people who were convinced that drinking mercury was good for you. They were wrong about that, but their distillation technology still works.
2) Even if somehow you could make the connection (which I still strongly doubt since I haven't seen the these Ancient Indian vacuum pumps in museums any more than I've seen a vimana in a museum), it still would be hardly relevant since it would be the same connection as between a car and a screwdriver. A screwdriver can be employed to assemble a car once you know what parts the car should comprise, but you'd most likely describe the resulting car as a thermodynamics-based device, or internal-combustion-heat-engine-based device, and not as a screwdriver-based device. Likewise, a vacuum pump utilizing mercury can be utilized to manufacture a vacuum tube, but most people would probably describe a triode as a electrostatics-based device, or as a thermionic-emission-based device, not as a mercury-vacuum-pump-based device, not matter where the mercury vacuum pump came from.
To correct one misreading on your part, though, my claim was that the technology of distillation was developed in India (or possibly China), not the Sprengel pump. I too would be very surprised to find a medieval Sprengel pump from India or anywhere else.
I'm curious: would you also be so foolish as to claim that chemistry and physics have nothing to do with the pseudosciences of phlogiston, numerology, astrology, and alchemy? How about the steady-state theory of cosmology?
I do think that that there is no example of any invention from anywhere that isn't based on existing technology, including specifically existing technology invented on other continents, and my reading of the question was that it was intended to make precisely that point, thus concisely pointing out the ignorant fallacy at the heart of the original racist bullshit comment, "I can think of nothing unique, only modification of existing inventions."
1) the tools are traditionally not a part of the invention,
2) by referring to distillation as a prerequisite for the mercury vacuum pump operation, you're referring to a tool twice removed from the invention in question, and
3) even mercury distillation itself is not based on ayurveda anyway. It's based on physics.
Bonus: India - place-value numbers; China - paper money.