It's ironic to think that on December/11/1901, almost exactly 100-years-ago, Marconi detected wireless telegraphy signals sent across
the Atlantic from Ireland to Newfoundland.
Most of the EM energy sent out by the "spark-gap wireless transmitter" used
by Marconi's crew probably penetrated
the ionosphere and radiated out into outer-space...It makes it that much more amazing to realize that it was only a small portion of the EM energy from that wireless transmission that actually bounced off the ionosphere
repeatedly, making its way across the Atlantic, to be detected by the most primitive radio-equipment imaginable.
Awesome...

Jake