Before the moon gets too high… That’s what I think about when I’m active in doing astrophotography with one of my two telescopes. Because the light of the moon can swamp the dimmer light of the nebula that I’m trying to catch digitally. There are filters, of course that you can use and I do…
AI , Encyclopedias, Slide Rules and Film Cameras What do those four things have in common? Not much. Except three of the four things required the user to think about and know what they were doing. Can you guess which of the four those three are? Hint: those three no longer exist in common use,…
Wherefore FTL? Much of the science fiction genre known as Space Opera uses locations in the galaxy far from Earth. That is many lightyears distant. Generally, for a satisfying read, the story’s characters need to get to or move around in these locations with the same ease and timeliness that they would on Earth. Hence,…