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Rice basket study rethinks roots of human culture

A new study from the University of Exeter has found that teaching is not essential for people to learn to make effective tools.

The results counter established views about how human tools and technologies come to improve from generation to generation and point to an explanation for the extraordinary success of humans as a species. The study reveals that although teaching is useful, it is not essential for cultural progress because people can use reasoning and reverse engineering of existing items to work out how to make tools. (more…)

Scientists build thinnest-possible LEDs to be stronger, more energy efficient

By Guest PostMarch 31, 2014Sciencebekaempfung der korruption, cold period, cultural chasm, david cobden, energy-efficient, Germany, graphene, juristin, karin seyfried, korruption, korruptionsstrafrecht, leds, one atom, problemfall, raf rios, rice basket, terry quinn, university of manchester, university of washington

Most modern electronics, from flat-screen TVs and smartphones to wearable technologies and computer monitors, use tiny light-emitting diodes, or LEDs. These LEDs are based off of semiconductors that emit light with the movement of electrons. As devices get smaller and faster, there is more demand for such semiconductors that are tinier, stronger and more energy efficient.

University of Washington scientists have built the thinnest-known LED that can be used as a source of light energy in electronics. The LED is based off of two-dimensional, flexible semiconductors, making it possible to stack or use in much smaller and more diverse applications than current technology allows. (more…)

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Rice basket study rethinks roots of human culture

Scientists build thinnest-possible LEDs to be stronger, more energy efficient