MacCruiskeen » Sun Mar 29, 2020 5:59 pm wrote:It was a response to norton ash, Dr E, not to you. Apologies for any confusion.
I'm sure all of us have imagined what would have happened if the Tunguska object had struck London or NYC instead.
None of us even know how the planet we're on will look this time next week.
Ah, sorry. No worries. And yes, Tunguska in London would have been bad. Just look at what happened with a small (20 meters wide) rock in Russia. Imagine that happening over Manhattan. Every window pane turning into lethal rain.