Speciation of the Human Race

On a time-scale of a thousand years, neither politics nor technology is predictable. China and Japan are the only major political units that have lasted that long. A thousand years ago, Europe was an unimportant peninsula lying on the edge of the more advanced and civilized Arab world. The technologies of today would be unintelligible to our ancestors of a millennium ago. The only human institutions that retain their identities over a thousand years are languages, cultures, and religions. Per...

 Science was Inconvenient for Religion

Science’s contributions to the spread of disbelief is the least controversial segment of the virtuous cycle for which I am arguing in seventeenth-century Europe. For science’s methods are clearly troublesome for religion. The devout, to begin with, are not wont to view their precepts merely as propositions to be controverted or confirmed. The orthodox, as a rule, are used to arguments being settled by authority, not experiment. The hope belief offers does not always stand up well to obser...

 Geological and Social Impact of the Himalayas

When you look at the planet from low orbit, the impact of the Himalayas on Earth’s climate seems obvious. It creates the rain shadow to beat all rain shadows, standing athwart the latitude of the trade winds and squeezing all the rain out of them before they head southwest, thus supplying eight of the Earth’s mightiest rivers, but also parching not only the Gobi to the immediate north, but also everything to the southwest, including Pakistan and Iran, Mesopotamia, Saudi Arabia, even North...

 "Run the Tape Again"

Run the tape again, and let the tiny twig of Homo sapiens expire in Africa. Other hominids may have stood on the threshold of what we know as human possibilities, but many sensible scenarios would never generate our level of mentality. Run the tape again, and this time Neanderthal perishes in Europe and Homo erectus in Asia (as they did in our world). The sole surviving human stock, Homo erectus in Africa, stumbles along for a while, even prospers, but does not speciate and therefore remains ...

 The Importance of Hay

The technologies which have had the most profound effects on human life are usually simple. A good example of a simple technology with profound historical consequences is hay. Nobody knows who invented hay, the idea of cutting grass in the autumn and storing it in large enough quantities to keep horses and cows alive through the winter. All we know is that the technology of hay was unknown to the Roman Empire but was known to every village of medieval Europe. Like many other crucially importa...

 Science Virtue and its Impact on History

So proud men have thought, in all walks of life, since Giordano Bruno was burned alive for his cosmology on the Campo de' Fiori in 1600. They have gone about their work simply enough. The scientists among them did not set out to be moralists or revolutionaries. William Harvey and Huygens, Euler and Avogadro, Darwin and Willard Gibbs and Marie Curie, Planck and Pavlov, practised their crafts modestly and steadfastly. Yet the values they seldom spoke of shone out of their work and entered their...