Abd ul-Rahman Lomax wrote
> "To cause an acceleration" means to "exert a force." Pressure is the term he > uses, force per unit area." I agree with Harry that "Only a force can cause an acceleration if the law of inertia is absolutely correct in all situations. However, I think it is dangerous to restrict the meaning of cause to force " Normally force is always transmitted to matter directly but Shawyer may be getting curved space time to interact with what we consider normal space time in a manner similar to a helium baloon being "displaced" by the external atmosphere as opposed to actually exerting a force in a specific vector. A kind of "pressure" differential drive? regards Fran __________________________________________________________________ Be smarter than spam. See how smart SpamGuard is at giving junk email the boot with the All-new Yahoo! Mail. Click on Options in Mail and switch to New Mail today or register for free at http://mail.yahoo.ca
