When the end reached light speed, the end of the stick would have infinite mass. Even if there is a reduction of the force required on the base of the stick, say, 1/100, you would still need (infinite force)/100 = (infinite force) to move it.
>>-----Original Message----- >>From: Phoeun Pha [mailto:phoeunp@;entelligence.com] >>Sent: Monday, October 28, 2002 11:15 AM >>To: CF-Community >>Subject: Hey Ben RE: MAthematical Equation >> >>ok, this has also been bothering me. 2 things actually...Here's the >>first. >> >>How to travel faster than light.... >> >>Think of a Carousel spinning. The farther you are from the center >>carousel >>(while still on it), the faster you go... I am not sure of the >>relationship >>between distance from center/speed, but here what I was thinking. What if >>you have a really long stick, and have it spinning around and around. The >>longer that stick, the faster the speed of the stick. Let's say we have >>this stick out in space. I was wondering if we can come up with a >>speed/length ratio to determine how fast we have to spin the stick and how >>long the stick has to be in order to have the ends move as fast as light, >>or >>even faster! Note: If you have a stick long enough, you can spin it very >>slowly, and the ends can move very fast! So this means you wouldn't need >>much power to spin the stick! And because it's done in space you won't >>have >>to worry much about other forces acting on it (friction). What do you >>guys >>think? I mean is this theoretically sound? Can it be done? >> >>Also, I wonder what we would be able to see if we were standing 3 feet >>away >>from the center of the stick, and we were looking towards one end of it >>with >>a telescope!! Any ideas? WOuld be wierd! >> >> >> >>I will post my second thought later after lunch. >> >> >> >> >>-----Original Message----- >>From: Ben Doom [mailto:bdoom@;moonbow.com] >>Sent: Monday, October 28, 2002 11:04 AM >>To: CF-Community >>Subject: RE: MAthematical Equation >> >> >> >>Um... Technically you can see four. >> >>You can only see three from each eye, but if you take a cube whose side is >>shorter than the distance between your eyes, hold it up close, and cross >>your eyes /real/ good, you can see a different third side with each eye. >> >>So there. Ptttth. >> >>But back to the real question. >> >>It has to do with the symmetry of the cube. Essentially, each side is >>hidden from view by it's reflected side or a combination thereof. Note >>that >>if it is blocked by two or more sides, its relected side is partially >>blocking the reflective sides of the two sides blocking it. Whoo. >> >>If you think of it as a faceted sphere, it might help. And, IIRC, you >>can't >>see more than four sides of an octahedron (8-sider), more than six of a >>dodecahedron (12-sider), or more than ten of an icosahedron (20-sider). >> >>As for proof, well, I'm not that much of a geometrist. Lots of help I >>was, >>eh? >> >> >> --Ben Doom >> Programmer & General Lackey >> Moonbow Software >> >>: -----Original Message----- >>: From: Phoeun Pha [mailto:phoeunp@;entelligence.com] >>: Sent: Monday, October 28, 2002 11:47 AM >>: To: CF-Community >>: Subject: MAthematical Equation >>: >>: >>: Hey guys, is there some mathematical proof to explain why we can >>: only see at >>: most 3 faces of a cube at one time? I mean, the only answer I have for >>: myself is...."It just is!" >>: >>: But I have been bothered with it lately and I want some concrete answer! >>: >>: >>: >> >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=5 Subscription: http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_community Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm
