Despite the era that we are currently living through which has immersed it’s self with petty factionalism, that in turn is motivated by misallocated self interests. The outcome will be populists lead goverments – which has always been a negative for the people. These are studies in political science, sociology and anthropology. A simple assertion to unify the human race could lie in a philosophical concept of anthropocentric survival, that Nature is a construct, in which we created the term and the Universe is an uncaring entity that would sooner wipe us out, render the human race extinct, rather than perpetuate humanity with any life giving relevance
Article from Space.com
“A killer space rock is most likely to get you via violent winds that fling you against something hard or powerful shock waves that rupture your internal organs, according to a new study.
“This is the first study that looks at all seven impact effects generated by hazardous asteroids and estimates which are, in terms of human loss, most severe,” lead author Clemens Rumpf, a senior research assistant at the University of Southampton in the United Kingdom, said in a statement.
Wind and shock waves were the most deadly, together accounting for more than 60 percent of all lives lost. (Though these two effects act in concert, wind blasts were far more devastating than shock waves, the study found.) The sizzling heat of an impact was responsible for nearly 30 percent of deaths, and tsunamis took most of the rest.
Each of the other three effects claimed only a tiny sliver of the death toll, according to the study. Flying debris had a maximum contribution of just 0.91 percent, for example; the figures for cratering and seismic shaking were 0.2 percent and 0.17 percent, respectively.
Rumpf and his colleagues also determined that land-based asteroid impacts are about 10 times deadlier than ocean strikes. In addition, they found that space rocks have to be at least 59 feet (18 m) wide to be lethal.
That lower limit is about the size of the object that exploded above the Russian city of Chelyabinsk in February 2013, generating a shock wave that broke countless windows on the ground below. The resulting flying glass shards injured more than 1,000 people but killed nobody.
Melosh added that the findings “lead one to appreciate the role of air blasts in asteroid impacts, as we saw in Chelyabinsk.”