Blogarchiv

Raumfahrt - Grenzwerte und Signaturen relativistischer Raumfahrt

.

-

While special relativity imposes an absolute speed limit at the speed of light, our Universe is not empty Minkowski spacetime. The constituents that fill the interstellar/intergalactic vacuum, including the cosmic microwave background photons, impose a lower speed limit on any object travelling at relativistic velocities. Scattering of cosmic microwave phtotons from an ultra-relativistic object may create radiation with a characteristic signature allowing the detection of such objects at large distances.

.

Quelle: Cornell University Library
 
3126 Views