1. Z.W. Wolf

    Z.W. Wolf Senior Member



    This experiment supports the null-hypothesis (earth is not moving). The experiment is faulty, of course, but I suspect anything I might say about that would be hopelessly naïve.

    The most cogent comments to this video I could find:


    But again, I defer to the more knowledgeable.
     
    Last edited by a moderator: Jan 22, 2017
  2. skephu

    skephu Senior Member

    Those comments are correct. Earth rotates too slowly to be detected by a cheap mechanical gyroscope. The static friction in the bearings and the imperfect balancing prevents that. Only expensive military-grade gyroscopes, ring laser gyroscopes, and other special high-sensitivity gyroscopes are sensitive enough to measure such slow rotations.
     
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  3. Chew

    Chew Senior Member

    At 6:00 he put the gyro on a spinning table and tests it. On the last spin of the table he moves it very slowly and the gyro, to my eye on my iPhone, does not remain fixed in space; it turns with the table. Too much bearing friction. Maybe some intrepid investigator can make screen caps and compare it.
     
  4. Henk001

    Henk001 Active Member

    Ironically, gyroscopes on board of airplanes PROVE the rotating earth-globe. I am not a pilot but as I understand, they all learn about apparent gyroscopic drift caused by the rotating earth. (perhaps one of the pilots on board of this site could confirm that)
    https://en.wikipedia.org/wiki/Heading_indicator
     
  5. Henk001

    Henk001 Active Member

    Allow me to add a link to a demonstration video:
     
  6. David Coulter

    David Coulter Active Member

    Foucault's Pendulum proves the rotation of the Earth without the need for any mechanical parts that are subject to friction. It is, therefore, a simple and definitive measurement. It is not like Foucault built one and they were never seen again - there is a working FP at the Deutsche Museum in Munich - (Chrome does a decent translation to English). It is a 30Kg pendulum on a 60m cable - quite impressive as is the entire museum.

    But, I am grateful to the the guy that did the video - gonna ask my wife to get me one of those cool super precision gyroscopes for Christmas! No more string burnt fingers from pull starting a gyroscope....
     
  7. Abishua

    Abishua Member

    Gyroscopes are a proof earth does not spin... there is no way arround it.. we can try and explain it away.. but they show no tilt..
     
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  8. mm1145

    mm1145 Member

    can you explain how you think this is in light of the demonstration video and comment in the post above? how are those explanations and the video wrong? what evidence are you bringing to the table to support your position?
     
  9. Henk001

    Henk001 Active Member

    If you just take the time to read the posts above you will see that
    - gyroscopes on board of planes DO show the rotation of the Earth
    - non-mechanical gyroscopes DO show the rotation of the Earth
    - the mechanical gyroscopes always suffer from friction, because of which they cannot follow very slow changes in orientation (especially the cheaper ones); that is not "explaining it away", it is simple physics.

    Besides there is additional evidence for the rotation of the earth. Just to name a few:
    - doppler shift of stars
    - abberation of starlight
    - coriolis forces on projectiles, weather systems and ocean currents
    - Foucault's pendulum
     
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  10. Abishua

    Abishua Member

    we are also supposed to move 66 000 mph arround the sun, 483 000mph orbiting galaxy, m way galaxy is movin at 1 300 000 mph .. is that detected by gyros? :D
     
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  11. Mick West

    Mick West Administrator Staff Member

    Why would it be? Gyroscopes detect angular velocity. Angular velocity is the rate of change of an angle, not a position.
     
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  12. Abishua

    Abishua Member

    well if earth spins arround 1000 mph while moving forward 1 300 000mph would that not have different efect when facing towards galaxy motion and spining against that motion? and we have to include our motion arround sun there also.. would be a wobbly ride.. 3 directions at the same time.. there would have to be noticable acceleration and deceleration depending on are we moving towards or against all of these...
     
  13. Henk001

    Henk001 Active Member

    About gyro's: see Mick's response.
    Those movements have been detected with other means. The earth orbiting the sun is clearly shown (apart from the annual abberation) by the stellar parallax:
    [​IMG]
    On top of that there is again the doppler effect. When moving towards an object like a distant star, absorption lines in the stars spectrum are blueshifted. Half a year later, the same lines are redshifted by the same amount. Astronomers, analyzing spectra know that they have to correct for diurnal and annual doppler shift before they can start measuring.
    The sun's movement in our galaxy again is detectable by means of doppler shifts, in combination with measuring the proper motion of relatively nearby stars (they seem to be invariable, but they all have random and systematic movements -- within, say, 100.000 years the sky will look quite different from what is looks today).
     
  14. Mick West

    Mick West Administrator Staff Member

    Again, you are confusing linear velocity (speed along a straight line) with angular velocity (speed of rotation). The Milky Way rotates about once every 200 million year. That's about a trillionth the speed of the rotation of the earth. How are you going to detect that with a gyroscope?
     
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  15. Henk001

    Henk001 Active Member

    We are not accelerating or decelerating linearly, all these circular movements are uniform circular motions.
     
  16. Abishua

    Abishua Member

    yeah.. sure.. so we see paralax from our orbit arround sun.. and stars reset to the same position each year for thousands of years now inspite us hullin ass through space at 1 300 000mph.. you really think that a star 10 000 lightyears away would not change position when compared to a visually close one 10 light years away.. when you drive next time try looking towards a distant mountain through some trees.. and see what happens..
     
  17. Abishua

    Abishua Member

    well when earth is rotating against that speed direction or toward that speed direction what happens?
     
  18. Mick West

    Mick West Administrator Staff Member

    Nothing. Why would something happen?

    Do you understand the difference between angular velocity (degrees per hour) and linear velocity (miles per hour)?

    Linear velocity is entirely irrelevant to gyroscopes, so please stop bringing it up. Please rephrase your objections using angular velocity.
     
  19. Abishua

    Abishua Member

    well.. yeah.. I get it.. it's like riding on a bus at constant speed.. but this bus is slightly turning all of the time.. and there is another small buss riding in it.. also slightly turning all of the time.. and few more time like that bus in a bus.... so.. uhh.. makes me spin just thinking about it =)
     
  20. Mick West

    Mick West Administrator Staff Member

    The key word being slightly. If the bus were driving along a straight freeway at 50mph and turing at the same rate as the galaxy then it would take hundreds of years before it changed lanes.
     
  21. Henk001

    Henk001 Active Member

    Let me put things into perspective here:
    all the stars orbit the galactic center with about the same angular velocity (once in 200 million years) They do that all together. So you won't notice that movement when looking at other stars, close or far. The same goes for the movement of the galaxy as a whole with respect to the cosmic background radiation. All the stars you can see are part of the milky way galaxy, so they all move as a whole and you won't see relative displacements.
    The sun's own proper motion with respect to its neighbouring stars is only 20 km/s (45,000 mph). With that velocity the sun will move 1% of the distance to our nearest star in about 630 years.
     
  22. Abishua

    Abishua Member

    yes, but the sun can go in a 90 degree angle away from that slight turning of galaxy.. earth can go in a 90 degre angle compared to suns direction.. moon can do the same to earth.. so.. that reminds me of the thing that bothers me about the moon.. when it's orbit gets closest to sun, and the furthest from the sun.. why doesent suns gravity pull on the moon further away from earth.. and when its furthest from the sun why doesent the sun pull it closer to earth.. seems so unlikley to me all of this orbiting.. and never crashing of all objects in solar system..
     
  23. Mick West

    Mick West Administrator Staff Member

    Those pulls are there, but not big enough to mess things things (obviously, since we are here to talk about it). The topic is called Perturbation:
    https://en.wikipedia.org/wiki/Perturbation_(astronomy)
    [​IMG]
     
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  24. Bfahome

    Bfahome Member

    This is probably because most of the models of the solar system show colossal planets passing within inches of each other on little plastic tracks. This is only because we need some way to fit it all into a display space.

    If you want to understand exactly why things aren't colliding with each other constantly, here's a useful page. To paraphrase an entertaining movie quote, having two planets collide would be like trying to hit a bullet with a smaller bullet whilst wearing a blindfold, riding a horse.
     
  25. Abishua

    Abishua Member


    and what is the force that counters gravitation so precisley to prevents the sun to pull earth in completeley? And is so accurate that the earth does not fly away from the sun.. I know there are explenations for it all.. but it's so unimaginable to me.. so many coincidences..
     
  26. Henk001

    Henk001 Active Member

    It does slightly, and that is called evection. From wikipedia:
     
  27. Mick West

    Mick West Administrator Staff Member

    The Earth is in a stable orbit around the Sun. Planetary systems with stable orbits are the ones that last long enough for life to form, hence we are on a planet with a stable orbit. It's not a coincidence. It's kind of like asking "how come my parents met, what are the odds!!!"
     
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  28. Henk001

    Henk001 Active Member

    There is no force counteracting gravitation -- gravitation is the only force, necessary to keep the earth in its circular orbit. Otherwise it would fly away in a straight line. In order for a mass to move in a circular orbit a force is needed towards the center and that is delivered by the gravitational pull between sun and earth
     
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  29. Abishua

    Abishua Member

    yeah.. but how does gravity explain all planets to be on the same ecliptic plane? gravity would alow them to have any direction of orbit arround it...
     
  30. Bfahome

    Bfahome Member

    They aren't.
     
  31. Mick West

    Mick West Administrator Staff Member

    Why don't you ask google these questions? They have been answered thousands of times? This thread is about gyroscopes.
    20161123-124028-hfung.
     
  32. Abishua

    Abishua Member

    yeah.. I get that.. but when I look at sum total of "universes" coincidences it's kinof like saying they met because a garbage dumpster exploded in texas.. makes no sense.. to me at least.. when I look at a hovercraft I don't think.. oh.. a garbage dump must have exploded.. and slowly.. over millions of years parts came togeather and vuola..

    no.. I see the hovercraft is created.. built.. therefore there must clearly be a creator of it.. it's the same for me when I look at nature, dna.. stars, sun, earth, people..
     
  33. Mick West

    Mick West Administrator Staff Member

    Let's stay on topic please.
     
  34. Abishua

    Abishua Member

    I agree C:
     
  35. Inti

    Inti Active Member

    Because the Earth, like the other planets, formed from a rotating cloud of dust and gases. Wherever the outward effect from the speed of rotation balanced the inward pull of gravity, a large clump stayed put. Outside or inside each of these points of balance, the dust and gas was either pulled inwards or sun outwards. Thus the matter had to be sorted into the balanced orbits, and any that wasnt captured by such a clump moved away until it was drawn into another accumulating clump, including the sun.

    So your question is the equivalent of saying "Isnt it suspiciously miraculous that everybody's legs are always just long enough to reach the ground?"
     
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  36. sharpnfuzzy

    sharpnfuzzy Member

    Here's a video explaining why solar systems and galaxies are disc shaped and why planets and stars are round.

     
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  37. Hevach

    Hevach Senior Member

    Also, time. Given sufficient time, anything not in a "safe" orbit will have already ended up hitting something. And there has been an awful lot of time happening.


    If you look at the things that actually do come close to Earth, you see a pattern. The vast majority are either in an orbital resonance with Earth so they never actually pass close to the planet, even though they pass close to its orbit, or they're just a little bit off of one, so they don't pass close *right now*, but in many thousands or millions of years, they will pass close to us frequently.

    What happens is, when asteroids do come close to Earth, they either hit us, or they interact with us, gaining or losing orbital energy relative to the sun, changing their orbits and altering future interactions with Earth. Because space is so big, the statistics are vastly in favor of interaction over collision in any single encounter.

    Sometimes these encounters make an object more dangerous, sometimes less. It's common to see objects interact with Earth several times over a few years or decades and then end up in an orbit where they won't come near Earth again for many millions of years, effectively guaranteeing their continued existence for that time.
     
    Last edited: Nov 24, 2016
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  38. yeehaanow

    yeehaanow New Member

    Hello fellow debunkers! First post:
    Getting back to the gyroscope, can anyone tell me what size gyro would be required to overcome bearing friction and show the rotation of earth?
    If I made one that was around 5 feet in diameter and spinning at about 2000 rpm, with a mass around 20 lbs, 80% of it being on the rim, would that have enough "power"? Does it need to be bigger? Could it be smaller? My guess is that with the motors I have, I could achieve a max rpm of 15k, albeit on a smaller gyro.

    I came up with these numbers because it's something I think I could build.
    The follow up question is of course, if this showed earths rotation, would the FE movement finally die? Ha ha. Flat chance of that.
     
  39. Mick West

    Mick West Administrator Staff Member

    From one of the Youtube comments in the OP:

     
  40. yeehaanow

    yeehaanow New Member

    That's great but it doesn't give the rotational speed.
    Is there a video for this or is it written up somewhere I could find more info?