Still Waters Posted August 28, 2013 #1 Share Posted August 28, 2013 A team of researchers claims to have created the world's fastest spinning man-made object. They were able to levitate and spin a microscopic sphere at speeds of up to 600 million revolutions per minute. This spin speed is half a million times faster than a domestic washing machine and more than a thousand times faster than a dental drill. http://www.bbc.co.uk...t-fife-23861397 1 Link to comment Share on other sites More sharing options...
keithisco Posted August 29, 2013 #2 Share Posted August 29, 2013 The really interesting part of this article is that the microscopic spinning ball just disappeared at 600 Mill revs per minute. Centrifugal forces do not seem to be part of this enigma. This was totally unexpected, and now moves are afoot to try to find just what happened to it. Did the spinning equator break the speed of light? I dont know have not done the Math to find out. Link to comment Share on other sites More sharing options...
flbrnt Posted August 29, 2013 #3 Share Posted August 29, 2013 Fascinating, Still Waters. Thank you for bringing this to our attention. 1 Link to comment Share on other sites More sharing options...
cacoseraph Posted August 30, 2013 #4 Share Posted August 30, 2013 (edited) Did i miss the part in the article where it disappeared? (edit: ah, the disappearing part was in the little inset paragraph, totally missed it =P) As for the linear velocity at the equator Diameter 0.000004m length around equator (diameter * Pi (I used 3.141592) = 0.000012566368m linear velocity = length around equator * revolutions per second (10 million revolutions per second) = 125.66368m/s that's not even the speed of sound, so quite far from the speed of light. Oh, and even it i had used a more precise value for Pi it would have just added some change to the end of that final number and not even gave it another m/s, I am pretty sure. edit2: As for that disappearing... I think this is a case where there might be tidal forces? If the angular acceleration at the surface on the equator is 1,000,000,000g and (i think) it would be 0 at the axis of rotation that seems like a heck of a lot of stress. Tidal force: http://en.wikipedia.org/wiki/Tidal_force Edited August 30, 2013 by cacoseraph 1 Link to comment Share on other sites More sharing options...
shrooma Posted September 2, 2013 #5 Share Posted September 2, 2013 (edited) revolutions per second (10 million revolutions per second) = 125.66368m/s that's not even the speed of sound, so quite far from the speed of light. . the number of rotations was 600 million per second Cacoseraph, not 10 million, so you may have to adjust your final figure..... . *edit to add* ah. it's 600 million per MINUTE, which is of course 10 million per second. sorry. Edited September 2, 2013 by shrooma Link to comment Share on other sites More sharing options...
pallidin Posted September 2, 2013 #6 Share Posted September 2, 2013 Great read. Hope they continue with the experiments and find something odd or useful. Link to comment Share on other sites More sharing options...
b0wn Posted September 2, 2013 #7 Share Posted September 2, 2013 Where does it mention that the object disappeared? Link to comment Share on other sites More sharing options...
cacoseraph Posted September 2, 2013 #8 Share Posted September 2, 2013 (edited) Where does it mention that the object disappeared? In the little inset paragraph under the picture of the dude, iirc. I missed it my first read, too. Definitely not in the main body of text. edit: They could make another ball out of radioactive calcium and real easily check if it is disintegrating or doing something more interesting. My money is on disintegration, though. Edited September 2, 2013 by cacoseraph Link to comment Share on other sites More sharing options...
brlesq1 Posted September 3, 2013 #9 Share Posted September 3, 2013 Pretty cool! Be great to see what comes out of this. Link to comment Share on other sites More sharing options...
MysticStrummer Posted September 10, 2013 #10 Share Posted September 10, 2013 "A team of researchers claims to have created the world's fastest spinning man-made object." It was promptly hired by FOX News and given it's own show in primetime. Link to comment Share on other sites More sharing options...
Sundew Posted September 17, 2013 #11 Share Posted September 17, 2013 Could they perhaps use another material, like the exotic forms of carbon that form the "Buckyballs"? They should be much stronger and less likely to fly apart, assuming that is what happened. Link to comment Share on other sites More sharing options...
keithisco Posted September 18, 2013 #12 Share Posted September 18, 2013 (edited) Did i miss the part in the article where it disappeared? (edit: ah, the disappearing part was in the little inset paragraph, totally missed it =P) As for the linear velocity at the equator Diameter 0.000004m length around equator (diameter * Pi (I used 3.141592) = 0.000012566368m linear velocity = length around equator * revolutions per second (10 million revolutions per second) = 125.66368m/s that's not even the speed of sound, so quite far from the speed of light. Oh, and even it i had used a more precise value for Pi it would have just added some change to the end of that final number and not even gave it another m/s, I am pretty sure. edit2: As for that disappearing... I think this is a case where there might be tidal forces? If the angular acceleration at the surface on the equator is 1,000,000,000g and (i think) it would be 0 at the axis of rotation that seems like a heck of a lot of stress. Tidal force: http://en.wikipedia....iki/Tidal_force Quite right, I really should think before posting at times. I calculate a a Diameter of 9.542690318473885 METRES would be required to achieve a linear velocity of C at 10E7 rps.... but you would probably need to verify that figure Edited September 18, 2013 by keithisco Link to comment Share on other sites More sharing options...
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