Reply to post: Re: Mitigate?

Re: Mitigate?

I just used Imperial College London's impactor page to estimate a hit by this thing on London. https://impact.ese.ic.ac.uk/ImpactEarth/cgi-bin/impact.cgi?latitude=&longitude=&LocationSelect=1&CraterSelect=0&diam=1.3&diameterUnits=2&pdiameter_select=0&pdens=&pdens_select=3000&vel=&velocityUnits=1&velocity_select=17&theta=&angle_select=45&wdepth=&wdepthUnits=1&tdens=2500

It made a mess. There would be an 18 km diameter, 700 metre deep, crater where London once was. There'd be secondary weather and climate effects, felt for several years. For speculation about possible long-term effects of a big impact, see among others S. M. Stirling's The Peshawar Lancers. (Warning: Mr Stirling ain't called 'Buckets of Blood' Stirling for nothing...) See also Lucifer's Hammer, Larry Niven and Jerry Pournelle. Fav scene: the surfer dude riding the tsunami into Century City. The Moon is a Harsh Mistress, Robert A. Heinlein, had a lot more much smaller impactors. They did manage to remove Cheyenne Mountain, though...