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Humans are able to produce a wide variety of sounds in part because they have descended voice boxes that makes room for longer vocal tracts.Evolutionarily, this appears to have occurred before, and th ...
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Obviously, it's evolutionarily advantageous for us to remind ourselves of tasks we have yet to finish, and experimentally it has long been observed that unmet goals keep popping into people's minds.Th ...
Particles, such as electrons, have a property called spin which can be measured at any angle, but when measured always results in one of two answers—up or down.If a particle's spin has been measured a ...
Comparing the average amount of school days per year by country, the United States contains the least amount of days, besides Belgium.243 - Japan220 - South Korea216 - Israel216 - Luxembourg200 - Neth ...
Expensive hotels are frequented by business travelers who charge everything to their companies, and therefore don't care about the cost of incidentals.Inexpensive hotels are frequented by customers wh ...
Studies with identical and non-identical twins show that between 50 and 80 percent of one's reported level of happiness is genetically determined.Moreover, Richard Davidson has found that happy people ...
Often someone who is bone-tired will lay down in bed and flip on the TV or his laptop thinking that it would be nice to relax for a few minutes before going to sleep.And often, he'll end up catching a ...