Category archives: Humanities & Social Sciences

Your molar roots are leftovers from Homo erectus Adult human molar roots form for at least a year before erupting from the gum line, according to research published in the journal PLoS ONE. Researchers say the majority of the formation of teeth has evolved to keep up with longer human lifespans, except for the adult […]

Imagine yourself listening to someone who is talking in a language very different from any one you know. Most probably, for you it will be just a series of meaningless noises. If, instead, you are listening to someone speaking in your own native language, usually the meaning of his or her utterances would be as […]

Could Earth be constantly crashing through dark matter? Scientists are looking to new techniques to search for evidence that the Earth is constantly breaking through walls of dark matter. Researchers are acting on a theory that dark matter, made up of weakly interacting massive particles, are tied up in domain walls, which they liken to […]

Think about yourself for a second: how did you react to the epidemic of the avian or the swine flu (H1N1) a couple of years ago? Did you go through special cares or measures in order to avoid the infection? Did you even really consider changing your everyday habits because of the fear and panic […]

Anyone can find an exoplanet A team of volunteer amateur astronomers has discovered evidence of 42 alien planets. The volunteers were sorting through NASA data as part of the Planet Hunters crowdsourcing program. Professional astronomers have yet to confirm the proposed planets. Space.com Planethunters.org Drought predictions in East Africa Variations in sea-surface temperatures of the […]

One traditional and difficult question in philosophy and metaphysics has been the knowledge we have of other minds. It is well known that for the founder of contemporary philosophy, the Frenchman René Descartes, non-human animals were probably what we would call today ‘robots’ or ‘zombies’: mere complex machines with no consciousness (in the sense of […]

When a standard kilogram is not a kilogram Tens of micrograms worth of surface contamination have caused the international standard kilogram to gain weight, according to new research, causing concern that each country’s standard weight for a kilogram is now slightly different. The cylinder-shaped piece of metal is key for scientific experiments that require exact […]

First brain cells found devoted to selective attention in an invertebrate animal. Dragonflies lack humans’ big brains, but they still get the job done, according to new research that suggests that these insects have brain cells capable of feats previously seen only in primates. Specifically, the dragonflies can screen out useless visual information to focus […]

The lifespan of words A recent analysis has found that as a language grows over time, it becomes more set in its ways. New words are always being added, according to this study, but few become widely used and part of the standard vocabulary. The scientists found that as the vocabulary of a language grew […]

From the genetic point of view, when should a man be more interested in caring for his sister’s children than his wife’s? A quantitative analysis of Alan Rogers, University of Utah, shows that this behaviour should be the choice in populations where adultery is common or permitted. In the animal world, males caring for offspring […]