--- franktaw@netscape.net wrote:
After reading the article, I agree with Bill.
Such materials would still be repelled by EM radiation. Less, perhaps, than some other materials, at least in some cases. But the basic range for this repulsion is from a maximum for a perfect mirror, to zero for a perfectly transparent object. These materials would fall into that
range.
The reverse Doppler shift doesn't make any sense to me at all.
Franklin T. Adams-Watters
--- "Cordwell, William R" <wrcordw@sandia.gov> wrote:
IMHO, attractive pressure from EM radiation would violate conservation of energy and momentum, while reverse Doppler shift would violate relativity. Am I confused, or should Science News be embarassed?
There is zero net force only in the case of a perfectly transparent body that does not change the direction of propagation of the transmitted light. If the direction changes, e.g. if the object is a prism, then there is a recoil. Gene __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com