How he climbed up the outside of the Metropole at Conspiracy , the Brighton Worldcon. Fairly crude models look better in photographs, due to 'softening'.
Overexposure is a useful technique, especially for 'planets'.
The sound of one Waldo clapping. The one at the front clears the air out of the way. Hard' SF means good science, even if it is one of the 'softer' sciences like biology, linguistics, etc. There is currently a move towards the latter. The scientific investigations of a generation tend to match the science fiction of their youth.