Yes, you read that right! Watch this, and be amazed. :)
https://youtube.com/watch?v=1VPfZ_XzisU
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Yes, you read that right! Watch this, and be amazed. :)
https://youtube.com/watch?v=1VPfZ_XzisU
My favorite YouTube comment:Richard Feynman would be rotating in his grave. But on which axis?:)
I confess, I'm a mathematician (or, was one!). But I still don't understand how come the weightless wingnut behaves as it does.
But I should be reassured that not only did this defeat Feynman, it took one of the world's most gifted mathematicians (Terence Tao, with an IQ of 230) to figure it out.
:thumbsup:
Objects will spin around their maximum momentum of inertia... And Earths doesn't change? Plate tectonic movements? Ice sheets? To be had the changes are slow and long time but they change with time. Volcanoes, erosion and new matter from asteroids etc will with time change the composition of balance.
I can conclude only he made a false statement in the end but in practicality it's nothing one needs to worry too much about unless major upheavals for some reason happens.
Just a quick thought on the matter, though all the water and mantle stuff might counter any and all reasonable possible changes to neutral.
All the slow change might change the orientation of rotation in minor ways contributing to the climate change we experience over the millenniums. Changing the way the winds blow around.
Maybe we should thank the Moon?
Wow.
RIchard Feynman didn't seem to have much faith in the layman I have to say: I once watched an interview with him where he explained why he couldn't give a simple explanation of how magnets work, and his explanation seemed more complicated than any explanation of magnets I've ever heard! :)
This has been giving me a headache. :bigsmile:
Here's my best shot at an intuitive simple explanation. ( :P —> Feynmann)
Any object, particularly semi-symmetrical ones (like wingnuts), can rotate about 3 different axes, in 3 different ways. Like: sideways, lengthways, or top to bottom.
Rotating round two of those axes will be stable. It won't 'jump' to any other state.
But if the object isn't totally symmetrical (like a sphere), the third axis (not the major, not the minor, but the intermediate one) won't be stable.
So when it's rotating round that axis, it'll always 'try' to get to the equilibrium of one of the other axes. And then it kind of 'bounces' between first trying to go one way, and then trying to go the other.
That's what makes the wingnut flip. (But it's still super-weird!)
For those who don't have a wingnut in a space station, or even a tennis racket, try tossing a hammer, like a juggler, and watch it spin.
:)
Richard Feynman was quite a scientific star. I don't remember what class my father took from him, but I found the textbook with his signature in it
on one of our bookshelves. My father was a pretty down to earth guy although an aeronautical engineer of fair accomplishment. And he stated a few times that the words of quantum mechanics made no sense I suppose that the math did make sense to him. I am assuming that Feynman would not agree with my father but this story tends to suggest that there are multiple ceilings of physics in the universe, and a vast world of phenomena between then.
I am curious about the uniformity of the periodicity of each direction of rotation is that exact? So the state of flipping is a type of alternating equilibrium that in zero gravity and a perfect vacuum would never decay? Weird wild stuff as Johnny Carson would say.
John
There are those accelerating centrifugal forces as the small masses get further and further from the y axis (the intermediate moment of inertia). This happens when the object is "bumped", i.e. when the small masses are no longer on the y axis--when the centripetal and centrifugal forces balance). I can see why the Russians classified this info...
and the earth has certainly been "bumped" at least once
It is interesting but the electro magnetic forces are not evident with the wingnut and they don't have an accompanying moon to act as a counter weight of sorts gravitationally speaking. I think they push and pull each other as evidence by the tide yes? So how would the wing nut interact in free space in a vacuum with a circular washer style magnet in the middle with a hole in it and another object nearby that is following it because of the draw of the magnet would in my mind be a better tell of what the earth may or may not do. Or any planet for that matter.
Why?
The earth is not a single wing nut/object rotating in space, so I'm guessing/hopping the effect will not apply to the earth and moon combined.
We will not flip because of this effect (I hope)
Is that right anyone?
We owe a great deal to the Moon (those who parked her there knew that)
Yes, you're right. The effect is called tidal braking. (My own poor analogy: the earth kind of has gravitational 'stabilizer wheels', like on a small child's bike. But they might not totally guarantee that no tip-over could ever happen.)
See this article:
Extract:The moon's gravitational pull may have been key to making Earth a livable planet by moderating the degree of wobble in Earth's axial tilt, which led to a relatively stable climate over billions of years where life could flourish.
Weirdly and wildly fascinating.
BTW, I have done the hammer flip many, many times and have wondered what physical influences caused it to flip in that manner. Now I know :)
What an incredibly fascinating topic.
I'm most likely going to be doing a lot of hammer flipping over the next few days, whilst exclaiming to anyone who happens to be near enough 'look! Look at what it's doing!', like a cat trying to figure out how the dot from a laser pen works.
Or just try at home with your remote, these days there should be a few around the living room :D
I played tennis in my youth, and did all sort of things with my raquet, funny how I never wondered the why behind that twisted flip...
let me speculate a few ..
I think "the magic" of this phenomena, can be explained by a great Science, that humans (choose?) not know yet. It would be something like Magnetism, Electricity and Gravity together as one thing.
What causes the wingnuts to rotate, is an accumulation of energy which, when it reaches a certain degree of potential, causes an electrical discharge that reverses the (magnetic) polarity, affecting the gravitation spin.
the object and magnetic field works like one capacitor that accumulates and discharges energy whitin and around itself, and this cicle of electrical discharges can affects the gravitation, causing him to rotate the axis.
I think this knowledge exists apart from conventional science, and it's very well kept. Only few scientists knows this part of our "Culture", forbiden to be told.
Who studies consciential energy (or similars) must to know about this (physical) "nature", otherwise doesn't learn anything right. A sensitive who does not develop understanding of the (inner-outer) energies right, not only looks crazy, but can thinks he is one.
--edit--
Thanks to Aragorn. :dog:
others who suspect my words above are not credible, I ask to look at this article.
Quote:
This article shows the relations between the electricity, magnetism, gravity and mechanics by presenting an existing hidden structure in the Maxwell equations.
Just released from Suspicious Observers.
I thought I would post it on this thread first as it talks about the dzhanibekov effect.
Just released, Dzhanibekov/Gravity Model [Part II]
in this 5 minute video, Ben clarifies yesterdays video release.
The following video is two years old to aid in the clarification.
Quote:
The earth is an object in space, it's not flat, and it's also not a perfect sphere. But it is subject to the laws of physics, and since there is much debate about the earths geometric shape, global warming and why the weather is getting increasingly more extreme, without taking any sides, I provide an explanation that the earth is subject to the laws that can be seen in all spinning objects in space and explained using the Dzhanibekov effect, also know as the tennis racquet effect. This also looks the same as the earths poles flipping, but I think the dzhanibekov effect is a better explanation. ~ Sean Wasere