Comments by "" (@craigkdillon) on "Astrum" channel.

  1. Eratosthenes CALCULATED the circumference and diameter of the Earth. He did NOT estimate it.
    2
  2. You will have to explain Donald Trump to be successful. Donald Trump is a quark in human form.
    1
  3. Mars to visit and have a temporary base? Yep, sure. Mars to colonize where people will live out their lives there?? Nope, except maybe as a place of banishment.
    1
  4. Actually not. Milankovich cycles are real, or more accurately, WERE real. Humanity's CO2 and CH4 emissions have overwhelmed them. If humanity were not here, then they would have already started the slow decline into an ice age. With CO2 levels on course to go over 500ppm by 2060, ice will retreat much further. Ocean levels will rise. If the levels remain at 500ppm, or go even higher to 600ppm or 700ppm, the ice caps will totally melt, and the Earth will be without natural ice. An ice free Earth has not been seen since the Paleo-Eocene Thermal Maximum of 55mya. In this future flooded world, if you have your scuba gear, you will be able to explore the Tower of London, the Lincoln Memorial, or New York's Central Park.
    1