Did he invent the first practical AC induction motor, a very useful little gadget if you want to run an electric washing machine, record player or car?
If Tesla was not there, we'd still have the motor, and probably pretty much everything else he is credited with. Someone has got to do the hard work, and someone is going to be first to market. But these things arise from the march of science.External Quote:In 1824, the French physicist François Arago formulated the existence of rotating magnetic fields, termed Arago's rotations, which, by manually turning switches on and off, Walter Baily demonstrated in 1879 as in effect the first primitive induction motor.[1][2][3][4] Practical alternating current induction motors seem to have been independently invented by Galileo Ferraris and Nikola Tesla, a working motor model having been demonstrated by the former in 1885 and by the latter in 1887. Tesla applied for U.S. patents in October and November 1887 and was granted some of these patents in May 1888. In April 1888, the Royal Academy of Science of Turin published Ferraris's research on his AC polyphase motor detailing the foundations of motor operation.[4][5]
About as much as Edison invented the lightbulb.
http://en.wikipedia.org/wiki/Induction_motor
If Tesla was not there, we'd still have the motor, and probably pretty much everything else he is credited with. Someone has got to do the hard work, and someone is going to be first to market. But these things arise from the march of science.External Quote:In 1824, the French physicist François Arago formulated the existence of rotating magnetic fields, termed Arago's rotations, which, by manually turning switches on and off, Walter Baily demonstrated in 1879 as in effect the first primitive induction motor.[1][2][3][4] Practical alternating current induction motors seem to have been independently invented by Galileo Ferraris and Nikola Tesla, a working motor model having been demonstrated by the former in 1885 and by the latter in 1887. Tesla applied for U.S. patents in October and November 1887 and was granted some of these patents in May 1888. In April 1888, the Royal Academy of Science of Turin published Ferraris's research on his AC polyphase motor detailing the foundations of motor operation.[4][5]
Just like we'd still have perfectly good lightbulbs now if Edison was never born and we'd still have general relativity if Einstein was never born.
Just like we'd still have perfectly good lightbulbs now if Edison was never born and we'd still have general relativity if Einstein was never born.
that's true, but the question is when?! If we had all those things invented 300 years ago would the world today be a better place with people more healthy living longer maybe we would already colonise other planets etc.?! They all deserve a praise and shouldn't be underestimated. It's not like someone said to Tesla or Einstein "hey just do the work and invent this and that". It's not a physical job.
In the grand scheme of things, a slight shift in the curve of history.five years? In era without Internet and widely accessible literature?
Can the same be said for Isaac Newton and Einstein and their contributions to progression of mankind? With respect to their discoveries (more so Sir Newton's) being achieved within 5yrs if they never existed. There are some individuals throughout history who were decades ahead of their time, with respect to how they viewed the world and universe around them with limited abilities to observe the realities of what existed..I very much doubt that it would have added more than five years, had those people not been around. Technology advances like a wave. Some people are a bit ahead of it, but the vast body of the wave is still pushing forward.
That why you get so many things that were "independently invented", even things that have massive implications for the future of technology - like the transistor - were all things that were simply on the cusp of being discovered.
No person exists in a vacuum, everyone is a product of their time in some way no matter how unconventional they may be compared to their contemporaries. Removing them to another time doesn't really work because they need the time they are in to be what they are.Can the same be said for Isaac Newton and Einstein and their contributions to progression of mankind? With respect to their discoveries (more so Sir Newton's) being achieved within 5yrs if they never existed. There are some individuals throughout history who were decades ahead of their time, with respect to how they viewed the world and universe around them with limited abilities to observe the realities of what existed..
esoteric woo energy's found in that scene.
I am not sure what you mean, please excuse my English phrasing and understanding.
I find it really interesting to see that Antroposophic's like my parents where also into this kinda stuff.
This is true Pete, and arguably so most discoveries would've or could've happened regardless of their existence, but we will never know, will we?. But we mustn't forget the path that some discoveries put us on, and where we would or wouldn't be if it hadn't happened precisely when it happened.No person exists in a vacuum, everyone is a product of their time in some way no matter how unconventional they may be compared to their contemporaries. Removing them to another time doesn't really work because they need the time they are in to be what they are.
I recognize that name Rudolph Steiner. I think he was the one that came up with the idea of bio-dynamic gardening? I was actually into that for a little while there, but it seemed pretty complicated so I did not really pursue it much. I remember how he talked about burying cow horns with compost in them and then leaving them in the ground for a year or so then taking them out and making compost tea out of them. Also, I remember something about having to be naked while stirring the compost tea to make the cosmic forces enter the compost or something. Now, I don't want to make it sound like I'm making fun of him, because I think he may have been on to something with bio-dynamic gardening, but it just seemed a little strange and too involved for me lol.Well, my parents are hardcore 'antroposophics'. Antroposophy is a theosofical phylosophy developed by Rudolf Steiner.
http://en.wikipedia.org/wiki/Rudolf_Steiner
http://en.wikipedia.org/wiki/Anthroposophy
too much off topic, but I surely have a lot of experience seeing resonance therapists, homeopaths, bach remedy therapists, spiritual healers, astrologists and what not to cure me from asthma, i'll explain in more detail when the chance comes along. Essentially, I was born in a rabbit hole.![]()
Can the same be said for Isaac Newton and Einstein and their contributions to progression of mankind? With respect to their discoveries (more so Sir Newton's) being achieved within 5yrs if they never existed.
In fact, there SOME evidence that Einstein wasnt the first to complete the formulas for Relativity, but another mathematician (who was a friend of Einsteins) and ended up allowing Einstein the credit. The two came to the conclusion at the same time virtually.. so if Einstein hadnt published, his friend would have (just cant remember his name off hand).External Quote:
Concerning special relativity, the most important names that are mentioned in discussions about the distribution of credit are Albert Einstein, Hendrik Lorentz, Henri Poincaré, and Hermann Minkowski. Consideration is also given to numerous other scientists for either anticipations of some aspects of the theory, or else for contributions to the development or elaboration of the theory. These include Woldemar Voigt, August Föppl,Joseph Larmor, Emil Cohn, Friedrich Hasenöhrl, Max Planck, Max von Laue, Gilbert Newton Lewis and Richard Chase Tolman, and others. In addition, polemics exist about alleged contributions of others such as Olinto De Pretto, and Einstein's first wife Mileva Marić, although these are not considered to have any foundation by serious scholars.[1]
Concerning general relativity, there is a controversy about the amount of credit that should go to Einstein, Grossmann, and David Hilbert. Many others (such as Gauss, Riemann, William Kingdon Clifford, Ricci, and Levi-Civita) contributed to the development of the mathematical tools and geometrical ideas underlying the theory. Also polemics exist about alleged contributions of others such as Paul Gerber.
Weedwhacker, we should have another talk about that in a different thread, because to my understanding, Hitler loathed Steiner for a number of reasons. I did go to the 'vrije school', it is an antroposophical school, that teached the 'rassenleer' which could be easily linked to national socialisme but certainly isn't. I can elaborate on that to quite some (esoteric) extent.
https://en.wikipedia.org/wiki/Nikola_Tesla#Views_on_experimental_and_theoretical_physicsExternal Quote:
Views on experimental and theoretical physics
Tesla exhibited a pre-atomic understanding of physics in his writings;[160] he disagreed with the theory of atoms being composed of smaller subatomic particles, stating there was no such thing as an electron creating an electric charge (he believed that if electrons existed at all they were some fourth state of matter or sub-atom that could only exist in an experimental vacuum and that they had nothing to do with electricity).[14]:249[161] Tesla believed that atoms are immutable—they could not change state or be split in any way. He was a believer in the 19th century concept of an all pervasive "ether" that transmitted electrical energy.[162]
Tesla was generally antagonistic towards theories about the conversion of matter into energy.[14]:247 He was also critical of Einstein's theory of relativity, saying:
I hold that space cannot be curved, for the simple reason that it can have no properties. It might as well be said that God has properties. He has not, but only attributes and these are of our own making. Of properties we can only speak when dealing with matter filling the space. To say that in the presence of large bodies space becomes curved is equivalent to stating that something can act upon nothing. I, for one, refuse to subscribe to such a view.[163]
Tesla claimed to have developed his own physical principle regarding matter and energy that he started working on in 1892[14] and in 1937, at age 81, claimed in a letter to have completed a "dynamic theory of gravity" that "[would] put an end to idle speculations and false conceptions, as that of curved space."[164] He stated that the theory was "worked out in all details" and that he hoped to soon give it to the world.[165] Further elucidation of his theory was never found in his writings.[9]:309
Views on society
Tesla, like many of his era, became a proponent of an imposed selective breeding version of eugenics. His opinion stemmed from the belief that humans' "pity" had interfered with the natural "ruthless workings of nature," rather than from conceptions of a "master race" or inherent superiority of one person over another. His advocacy of it was, however, to push it further. In a 1937 interview, he stated:
... man's new sense of pity began to interfere with the ruthless workings of nature. The only method compatible with our notions of civilization and the race is to prevent the breeding of the unfit by sterilization and the deliberate guidance of the mating instinct ... The trend of opinion among eugenists is that we must make marriage more difficult. Certainly no one who is not a desirable parent should be permitted to produce progeny. A century from now it will no more occur to a normal person to mate with a person eugenically unfit than to marry a habitual criminal.[166]
showman? He was kind of introverted guy...
Nikola Tesla is a popular figure in conspiracy culture. A lone genius who apparently invented everything we use today, and who was on the brink of discovering free energy when his work was brutally suppressed by the government.
And yet, much of the Tesla Worship is based on misconceptions.
External Quote:The discovery of the rotating magnetic field is generally attributed to two inventors, the Italian physicist and electrical engineer Galileo Ferraris, and the Serbian-American inventor and electrical engineer Nikola Tesla.[1] Tesla claimed in his autobiography that he identified the concept in 1882 while Ferraris wrote about researching the concept and built a working model in 1885,[2] although there is no independent verification for either claim. In 1888 Tesla obtained a United States patent (U.S. Patent 0,381,968) for his design and Ferraris published his research in a paper to the Royal Academy of Sciences in Turin.
http://en.wikipedia.org/wiki/Rotating_magnetic_field
Induction motors using a rotating magnetic field were independently invented by Galileo Ferraris and Nikola Tesla and developed in a three-phase form by Mikhail Dolivo-Dobrovolsky in 1889.[1]
http://en.wikipedia.org/wiki/Polyphase_system
So we have harmless free energy,
I can never understand the "free" part. As long as there is something that has to be built, and something that has to be transmitted, there is going to be a cost.
It seems Tesla's dream has always been plagued by lack of funding.External Quote:Let's Build a Planetary Energy Transmitter
Instantly. Wirelessly. Worldwide. We need your help to make it happen! And YOU have a chance to really change the world! Help us to make this wireless Tower become a reality!!! Let's have some GLOBAL fun!
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Good catch MW, I should have said: "So we "would/or/could" have harmless free energy". Exactly how much it would yield is unknown for certain.
External Quote:
Eliminating, for the moment, consideration of the extremely dense charge populations that exist in the upper reaches of the atmosphere, a region called the ionosphere, filled with hot, dense, plasma gas whose ions give the ionosphere its name, we note that there is always some amount of unbound positive and negative, but net positive, electric charge in the atmosphere closest to the surface of the negatively charged Earth on a 'fine day'. When days are not so 'fine', the net unbound charge that exists in the clouds of thunderstorms can be exceedingly negative.
The 'fine day' net positive charge sets up an electric field between the negative Earth and the net positive charge in the air, and this electric field stores electrical energy. The positive charge acts by induction on the earth and electromagnetic devices.[2]
Experiments have shown that the intensity of this electric field is greater in the middle of the day than at morning or night and is also greater in winter than in summer. In 'fine weather', the potential, aka 'voltage', increases with altitude at about 30 volts per foot (100 V/m), when climbing against the gradient of the electric field.[3] This electric field gradient continues up into the atmosphere to a point where the voltage reaches its maximum, in the neighborhood of 300,000 volts. This occurs at approximately 30–50 km above the Earth's surface.[4