#redirect rpm (disambiguation)
#redirect rpm (disambiguation)
I move this section from the :rpm page: :The :theory of relativity sets limits to rotational speed for an object of a certain :diameter. When the rotational speed or diameter increases, a point on the :perimeter will move faster, but cannot move faster than the :speed of light. If the rotational center is made to move faster, the rotating object will deform so that the perimeter moves at its allowed speed. This effect can be noted on computer :hard disks. The last sentence: "This effect can be noted on computer :hard disks" must be wrong. If a hard disk is rotating with 10000 rpm, then the diameter of the disk need to be several hundred kilometer for the velocity of the perimeter to approach the speed of light. Or am I wrong? --:css :Hmm. A 3.5 inch disk spinning at 10,000 RPM would be moving about 104MPH at the edge. So there's no danger of exceeding the speed of light. However, there might be some small relativistic effect even at that low speed...? I couldn't find any info on this. More likely, the issue is simply one of material deformation at high speeds. I'd be fascinated if it was the former, though. -User:Dachshund ---- I would have thought that the equivalent SI unit to rpm would be the Hz, since we are dealing in revolutions or rotations or cycles per unit time. The non-SI equivalent of rad/sec would surely be degree / sec or similar angular unit / time unit ? User:Icairns 17:16, 4 Jul 2004 (UTC) :First - rotational speed (r/min or 1/min or r/s or 1/s) and angular speed (rad/s or deg/s) have been confused. They are separate quantities and have different units. Second - I think 1/s (1/min) is more often used as unit of rotational speed than Hz. Hz is more often used for oscillating phenomena. User:Aulis Eskola 20:19, 15 Jul 2004 (UTC)
Rpm, more casually known as Rohan, is a male human, born in 1985. He can be contacted by e-mail at [mailto:rohan@mizzenblog.com rohan@mizzenblog.com]. Hmm, guess I don't really have to write NPOV on my own user page :-) Hi, I'm Rohan. This is my user page on Wikipedia. Let me just say that I absolutely love Wikipedia. It's always my first source for information, and always the place I go when I'm bored and have no work to do. I don't scour the wiki looking for errors, but whenever I see any, I fix them... I'm currently (until end of 2006) working on a Bachelor of Information Technology and a Bachelor of Applied Science (mathematics). I live with my parents. Sometimes I do contract IT work over the Internet, but I dream of someday (preferably soon) not having to do real work at all. To this end, I'm always working on easy ways to make money. I've considered starting a pornographic website, or writing a program to automatically place winning bets on horse races over the Internet. Although not linked to my quest for money in any way, at the moment, I'm doing a fair bit of development on a hardware management program for Linux called [http://ivman.sourceforge.net/ Ivman]. == External Links == [http://mizzenblog.com My blog]
==Hey Rohan== Hey, I'm first! Nice one. I see you've been around a while but no one has talked to you ;-) Thanks for the comment on South Bank. Here's my view on leaving a comment on the article. Articles are works in progress, not finished pieces. Some are a lot more finished than others. Now, say a user sees my question about the caption and is annoyed, and thinks "that shouldn't be in an encyclopaedia". Well, that user can fix it! He or she can decide, yes, it is a caption but a poor one and this would be better; or no, it should never have been there and I'll remove it. Articles actually quite often outline questions and future work. You're right. It could all go on the talk page. But sometimes it's just more enticing for the reader to be beckoned in: "Contribute. Fix it." That's my view. YMMV, of course.User:Dr Zen 11:33, 6 Jan 2005 (UTC)
See other meanings of words starting from letter:
Words begining with RPM:
RPM
Rpm
Rpm
Rpm
Rpm
RPM-based_Linux_distribution
Rpm1200
Rpm1200
RPMI
Rpms
Rpm_(disambiguation)
RPM_Package_Manager
RPM_Package_Manager
RPM_package_manager
RPM_Records
RPM
#redirect rpm (disambiguation)
Rpm
#redirect rpm (disambiguation)
Rpm
I move this section from the :rpm page: :The :theory of relativity sets limits to rotational speed for an object of a certain :diameter. When the rotational speed or diameter increases, a point on the :perimeter will move faster, but cannot move faster than the :speed of light. If the rotational center is made to move faster, the rotating object will deform so that the perimeter moves at its allowed speed. This effect can be noted on computer :hard disks. The last sentence: "This effect can be noted on computer :hard disks" must be wrong. If a hard disk is rotating with 10000 rpm, then the diameter of the disk need to be several hundred kilometer for the velocity of the perimeter to approach the speed of light. Or am I wrong? --:css :Hmm. A 3.5 inch disk spinning at 10,000 RPM would be moving about 104MPH at the edge. So there's no danger of exceeding the speed of light. However, there might be some small relativistic effect even at that low speed...? I couldn't find any info on this. More likely, the issue is simply one of material deformation at high speeds. I'd be fascinated if it was the former, though. -User:Dachshund ---- I would have thought that the equivalent SI unit to rpm would be the Hz, since we are dealing in revolutions or rotations or cycles per unit time. The non-SI equivalent of rad/sec would surely be degree / sec or similar angular unit / time unit ? User:Icairns 17:16, 4 Jul 2004 (UTC) :First - rotational speed (r/min or 1/min or r/s or 1/s) and angular speed (rad/s or deg/s) have been confused. They are separate quantities and have different units. Second - I think 1/s (1/min) is more often used as unit of rotational speed than Hz. Hz is more often used for oscillating phenomena. User:Aulis Eskola 20:19, 15 Jul 2004 (UTC)
Rpm
Rpm, more casually known as Rohan, is a male human, born in 1985. He can be contacted by e-mail at [mailto:rohan@mizzenblog.com rohan@mizzenblog.com]. Hmm, guess I don't really have to write NPOV on my own user page :-) Hi, I'm Rohan. This is my user page on Wikipedia. Let me just say that I absolutely love Wikipedia. It's always my first source for information, and always the place I go when I'm bored and have no work to do. I don't scour the wiki looking for errors, but whenever I see any, I fix them... I'm currently (until end of 2006) working on a Bachelor of Information Technology and a Bachelor of Applied Science (mathematics). I live with my parents. Sometimes I do contract IT work over the Internet, but I dream of someday (preferably soon) not having to do real work at all. To this end, I'm always working on easy ways to make money. I've considered starting a pornographic website, or writing a program to automatically place winning bets on horse races over the Internet. Although not linked to my quest for money in any way, at the moment, I'm doing a fair bit of development on a hardware management program for Linux called [http://ivman.sourceforge.net/ Ivman]. == External Links == [http://mizzenblog.com My blog]
Rpm
==Hey Rohan== Hey, I'm first! Nice one. I see you've been around a while but no one has talked to you ;-) Thanks for the comment on South Bank. Here's my view on leaving a comment on the article. Articles are works in progress, not finished pieces. Some are a lot more finished than others. Now, say a user sees my question about the caption and is annoyed, and thinks "that shouldn't be in an encyclopaedia". Well, that user can fix it! He or she can decide, yes, it is a caption but a poor one and this would be better; or no, it should never have been there and I'll remove it. Articles actually quite often outline questions and future work. You're right. It could all go on the talk page. But sometimes it's just more enticing for the reader to be beckoned in: "Contribute. Fix it." That's my view. YMMV, of course.User:Dr Zen 11:33, 6 Jan 2005 (UTC)
See other meanings of words starting from letter:
R
RA | RB | RC | RD | RE | RF | RG | RH | RI | RJ | RK | RL | RM | RN | RO | RP | RS | RT | RU | RW | RX | RY | RZ |Words begining with RPM:
RPM
Rpm
Rpm
Rpm
Rpm
RPM-based_Linux_distribution
Rpm1200
Rpm1200
RPMI
Rpms
Rpm_(disambiguation)
RPM_Package_Manager
RPM_Package_Manager
RPM_package_manager
RPM_Records
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