Small Minority Accounts for Bulk of Gun Ownership

Since the 2008 election of President Obama, the number of firearms manufactured in the U.S. has tripled, while imports have doubled. This doesn’t mean more households have guns than ever before—that percentage has stayed fairly steady for decades. Rather, more guns are being stockpiled by a small number of individuals. Three percent of the population now owns half of the country’s firearms, says a recent, definitive study from the Injury Control Research Center at Harvard University. S...

 Thinking Means Understanding in More Than One Way

Thus, your knowledge is represented in various forms that are stored in different regions of the brain, to be used by different processes. What are those representations like? In the brain, we do not yet know. However, in the field of Artificial Intelligence, researchers have found several useful ways to represent knowledge, each better suited to some purposes than to others. The most popular ones use collections of "If-Then" rules. Other systems use structures called 'frames'--which resemble...

 We Know Too Much About the Wrong Things

In science, attempts at formulating hierarchies are always doomed to eventual failure. A Newton will always be followed by an Einstein, a Stahl by a Lavoisier; and who can say who will come after us? What the human mind has fabricated must be subject to all the changes—which are not progress—that the human mind must undergo. The 'last words' of the sciences are often replaced, more often forgotten. Science is a relentlessly dialectical process, though it suffers continuously under the nec...