81–100 of 114
The Solar System is much vaster than the Earth, but the speeds of our spacecraft are, of course, much greater than the speeds of the sailing ships of the fifteenth and sixteenth centuries. The spacecraft trip from the Earth to the Moon is faster than was the galleon trip from Spain to the Canary Islands. The voyage…
美(beautiful) plus 国(kingdom) = 美国
There is fundamentally no business case for private enterprise to advance a space frontier. When you advance a frontier, you are making mistakes that the capital markets choose not to value. You have to create patents to enable things that you don't know will work. Anytime you are the first person to do something on…
The subjects of every state ought to contribute towards the support of the government, as nearly as possible, in proportion to their respective abilities; that is, in proportion to the revenue which they respectively enjoy under the protection of the state. The expense of government to the individuals of a great…
The President held up his hand. Preemptive penance and absolution were doctrines researched and developed by the Consistorial Court, but not known to the wider Church. They involved doing penance for a sin not yet committed, intense and fervent penance accompanied by scourging and flagellation, so as to build up, as…
Vygotsky was one of the few researchers of his era to study dramatic play in children. He predicted that the ability of the under-5 crowd to engage in imaginative activities was going to be a better gauge of academic success than any other activity—including quantitative and verbal competencies. The reason, Vygotsky…
As we learn more about maternal hormones and their influence on the developing brain, scientists are beginning to propose actual biological mechanisms for the kind of folk prophecies that have been around for ages. One recent study, for instance, suggests that a child's shyness is determined, in part, by maternal…
In a more evolutionardy appropriate infant-caretaker scheme, the infant is a social partner, part of a dyad. Both mother and infant are interested in being in equilibrium, that is, in a stable and contented state. This goal is adiieved by mutual regulation, by reciprocity, and by keep¬ ing tabs on each other. This…
More significantly, the breast—bottle controversy has moved far away from the question of what is best for babies. The decision for substitute milk is influenced by the pressures of corporations, their advertising, and their lobbies. The money game behind the production of formula has overpowered what might be best…
One cannot foretell the surprises or disappointments the future has in store. Before this chapter of the World State can begin fairly in our histories, other chapters as yet unsuspected may still need to be written, as long and as full of conflict as our account of the growth and rivalries of the Great Powers. There…
The business sector is dazzlingly productive, but it also periodically blows up our financial system. Yet if we seek another model, one that emphasizes universal health care and educational opportunity, one that seeks to curb income inequality, we don’t have to turn to Sweden. Rather, look to the United States…
Most human and natural communities now consist both of long-term residents and of new arrivals, and ecosystems are emerging that never existed before. It is impractical to try to restore ecosystems to some ‘rightful' historical state. For example, of the 30 planned plant eradication efforts undertaken in the Galapagos…
Many plants new to North America first sprouted up alongside wharves and shipyards. From there they made their way inland along new roads hacked out of the wilderness, and later along canals and railroad embankments, taking up residence in any sort of disturbed soil. Native plants adapted to quiet precolonial forests…
This much is certain: The future of the planet wall not be a reprise of the past, a return to "a state of nature." The future will certainly be technological, increasingly globally homogeneous, and, in the short run at least, will embody the connectivity of the computer chip and the contrivances of genetic…
What kinds of memes are there? I've divided memes into three classes: distinctions, knives used to slice up reality; strategies, beliefs about which causes will produce which effects; and associations, attitudes about everything in life. Each class of meme works to program you in a different way. [...]…
To begin with, citizens of other nations don't fare much better on scientific literacy surveys, and in many cases fan worse. Residents of the European Union, for instance, are less scientifically literate overall than Americans, at least according to one metric for measuring "civic science literacy" across countries.
Thomas Jefferson was a scientist. That's how he described himself. When you visit his home at Monticello, Virginia, the moment you enter its portals you find ample evidence of his scientific interests - not just in his immense and varied library, but in copying machines, automatic doors, telescopes and other…
Declaration of Independence puts it - 'the laws of nature and of nature's GOD'. Dr Benjamin Franklin was revered in Europe and America as the founder of the new field of electrical physics. At the Constitutional Convention of 1789 John Adams repeatedly appealed to the analogy of mechanical balance in machines; others…
Daniel Kunitz is a friend of mine from college. He's spent his life as an innovative junior and senior high school social sciences teacher. Want the students to understand the Constitution of the United States? You could have them read it, Article by Article, and then discuss it in class but, sadly, this will put most…
...science is more than a body of knowledge; it is a way of thinking. I have a foreboding of an America in my children's or grandchildren's time - when the United States is a service and information economy; when nearly all the key manufacturing industries have slipped away to other countries; when awesome…