منابع مشابه
Blacker than black
This would have been impossible without taking evolution into account. The simplest autonomous living systems today are prokaryotes, the results of billions of years of evolution. There is just no way that a prokaryote with its genetic code could have self-assembled in the primordial soup. There must have been a long phase of evolution by natural selection from the first living entities to bact...
متن کاملErnest Blacker
The uniqueness of individuals is a striking scientific fact, but it is just one of those facts that can hardly be done justiceto in an obituary notice. In writing this brief memoir of my departed friend, Ernest Blacker, I am regretfully conscious of this shortcoming. It may, however, be stated that his was a cheery, neat, alert and debonair personality, rich in human sympathies and sociabilitie...
متن کاملCasey Blacker
My research is in differential geometry. Generally speaking, I am interested in symplectic geometry, Lie groups and gauge theories, and geometric invariants relating to index theory. Specifically, I have researched the moduli space MG(M) of flat G-connections over a manifold M of dimension greater than two. These spaces, formally introduced in Section 2.1, arise naturally in physics as the spac...
متن کامل\Faster Than Light" Photons in Dilaton Black Hole Spacetimes
We investigate the phenomenon of “faster than light” photons in a family of dilaton black hole spacetimes. For radially directed photons, we find that their light-cone condition is modified even though the spacetimes are spherically symmetric. They also satisfy the “horizon theorem” and the “polarization sum rule” of Shore. For orbital photons, the dilatonic effect on the modification of the li...
متن کامل“ Faster than Light ” Photons and Rotating Black Holes
The effective action for QED in curved spacetime includes equivalence principle violating interactions between the electromagnetic field and the spacetime curvature. These interactions admit the possibility of superluminal yet causal photon propagation in gravitational fields. In this paper, we extend our analysis of photon propagation in gravitational backgrounds to the Kerr spacetime describi...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2004
ISSN: 0960-9822
DOI: 10.1016/j.cub.2004.01.040