Talk:Zippe-type centrifuge
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- The speed of sound is not measured in revolutions per second
- If it runs in a vacuum then the speed of sound is meaningless anyway
Jeff Knaggs 12:07, 1 Jan 2005 (UTC)
- You are correct, I removed it. Edward 12:24, 2005 Jan 1 (UTC)
A washing machine is a centrifuge, that's why it was used as a comparison. A hard disk isn't a centrifuge. Edward 13:32, 2005 Jan 2 (UTC)
- Yeah - only thought of that after submitting the hard disk change. You can change it back if you want. I just felt that more people online would be able to relate to hard disk speed than to washing machine speed.. AndrewH 15:07, 2 Jan 2005 (UTC)
The forces inside of one of these things are equivalent to how many gees? --Juuitchan?
- I did some basic calculations and came up with around two million times the acceleration of gravity! Maybe someone can double-check this. Anyway, assuming 1500 revolutions per second and a radius of about 0.2 meters (they're actually quite small, from what I've found), plug that into a = v^2/r = (2*pi*r*revs)^2/r = 1.8e7_m/s^2. The acceleration of gravity is about 9.8_m/s^2, which gives the final result of about 1.8e6 Gs. HorsePunchKid 16:01, 2005 Apr 20 (UTC)
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[edit] What is the difference between the Zippe type and other gas centrifuges? (Maybe need a merge)
What is the difference between the Zippe type and other gas centrifuges? (Maybe this article needs to be merged into the gas centrifuge article?) Lchiarav 06:30, 28 November 2005 (UTC)
- My recollection from the sources is that magnetic bearings and use of a vacuum were his major innovations, together with fine engineering. This extlink tells more. I'm not pro-merger, but there could be more clarification. I do wonder if Gas centrifuge should be more generic, rather than just about uranium isotope separation. - Rwendland 10:48, 29 November 2005 (UTC)
[edit] Washing machines operate at 15 RPS?
I find it extremely doubtful that a washing machine rotates 15 times every second. Where is this factoid sourced from? Perhaps it would be prudent to qualify that with something along the lines of "during the spin cycle". 24.118.114.210 17:56, 13 April 2006 (UTC)
- The New York Times says:
- A washing machine on spin cycle is a centrifuge, its whirl creating artificial gravity that separates water (heavy) from clothes (light).
- A good washing machine spins about 15 revolutions per second.
- Edward 18:18, 13 April 2006 (UTC)
[edit] What is the actual cost of a centrifuge?
[edit] How many in a series fo centrifuges are needed for the two levels of enrichments?
--Falazar 13:39, 27 October 2006 (UTC)
[edit] Selveral hundred Hz?
The article states: The AC motors which drive the centrifuge require higher than normal frequency AC, and the several hundred Hertz AC is detectable by other countries SIGINT ELINT. This sounds wrong. "Several hundred Hz" is not a very high frequency, particularly for a centrifuge that itself spins in the kilohertz range. If "several hundred thousand Hz" is meant, it is easier to believe that it will radiate detectably, but still difficult to see how such an emission could be identified as a centrifuge in operation with any certainty (for example, the horizontal sync of high-end computer monitors will have their low harmonics in this range). Anybody know what is actually intended to be said here? Henning Makholm 22:21, 12 December 2006 (UTC)
- Even if it would be identifiable, it would be easy to shield it by a faraday cage.Errorneous 15:00, 18 July 2007 (UTC)

