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Let’s be realistic: even the weakest member of the Harvard Taekwondo Club could beat you up. After all, the club has been training students to spar, kick, and break boards for ten years now. It has even given some members an opportunity to fight (sort of) in a zero-gravity environment...
...Some paleoanthropologists have said that when our ancestors made jewelry, for example, it implied the ability to think symbolically - that the adornment represented individuality or status. If the Neanderthals did this, according to the idea, they were just imitating the modern humans who co-existed with them in Europe, sort of like a child playing dress-up. (See a Q&A with Donald C. Johnson, the discoverer of "Lucy...
...trip, the U.S. intelligence community produced a finished-intelligence report noting that such "chemically triggered" bombs "would pose a particular challenge to screening efforts." Although there was no indication the bombs were intended for use against airliners, "our analysts did, however, assess that such IEDs of this new sort could be used in an aviation-focused attack," the official said...
...those early models didn't take into account the fact that compressed gas heats up, which limits how dense it can become, and in turn limits how hard its gravity can pull on the proto-planets. Beyond that, the planets' own gravity would fling gas around - the same sort of phenomenon NASA counts on, say, when a spacecraft en route to Saturn gets a slingshot velocity boost from Jupiter on the way. By adding in both effects, Mac Low's collaborator Sijme-Jan Paardekooper, now at Cambridge, found that there are places where the net force pushes a planet inward...
...disappearing smile is an effect caused by the way the brain processes certain elements of light. There is another possibility that may be hard to disprove: La Gioconda's face is itself a mirror on which the story of our own lives is reflected. Does it make you smile? Sort...