The Journey from Black-Hole Singularities to a Cyclic Cosmology Sir Roger Penrose gives the annual Sir Thomas Gresham lecture on The Journey from Black-Hole Singularities to a Cyclic Cosmology.
The Big Brain: Size and Intelligence For centuries, scientists have tried to identify what is special...
Victorian Era Astronomy: On Land and in the Skies In the late 19th-century, astronomical research could be practical, using...
Engineering: Archimedes of Syracuse In the 3rd century BCE, the Sicilian polymath Archimedes significantly advanced human understanding of mathematics, geometry and astronomy.
Doing Business in Interstellar Space Imagine that interstellar trade is possible at speeds close to...