Mostly links and stuff that are too generic and not "mine" enough to post on my own blog. Many of the entries here are likely to be "ripped" (or "reblogged") from other blogs that I come across, but, hey, I might even link to some of my own stuff too! Homepage at bjornarhaveland.net, blog at wordpress.com, photos at Flickr.
“Between 2000 and 2013, a network of sensors that monitors Earth around the clock listening for the infrasound signature of nuclear detonations detected 26 explosions on Earth ranging in energy from 1-600 kilotons – all caused not by nuclear explosions, but rather by asteroid impacts.
“These findings were recently released from the Nuclear Test Ban Treaty Organization, which operates the network.
“To put this data in perspective, the atomic bomb that destroyed Hiroshima in 1945 exploded with an energy impact of 15 kilotons. While most of these asteroids exploded too high in the atmosphere to do serious damage on the ground, the evidence is important in estimating the frequency of a potential “city-killer-size” asteroid.”
«If you traced your family tree back 185 million generations, you wouldn’t be looking at a human, a primate, or even a mammal. You’d be looking at a fish. So where along that line does the first human show up? The answer may surprise you.»