The Marketplace in Your Brain
Neuroscientists have found brain cells that compute value. Why are economists ignoring them?
The Marketplace in Your Brain
Neuroscientists have found brain cells that compute value. Why are economists ignoring them?
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The Photon Has Two Faces
Over at Ars Technica, Matt Francis has the scoop on a nifty new quantum interference experiment using large molecules of phthalcyanine and its derivatives. The molecules are quite large — comprised of more than 100 atoms — which means this experiment is approaching that critical threshold where quantum effects (the subatomic realm) give way to…
Device May Let Humans Communicate With Dolphins
A new dolphin speaker device could one day help us talk with these remarkably intelligent life forms, scientists say. Dolphins live in a world of sound far beyond our own. They can distinguish very small differences in the frequency or pitch of sound waves, and can hear and generate low-frequency sounds below 20 kilohertz that…
Megacities Pose Serious Health Challenge
Rapid urbanization will take a heavy toll on public health if city planning and development do not incorporate measures to tackle air pollution, warns a new study. The report, compiled by the World Meteorological Organization (WMO) and the International Global Atmospheric Chemistry (IGAC), was launched in Beijing in September as part of the IGAC Open…
Technical Creativity Needs Nurturing at the Grassroots Level
Efforts to promote sustainable development must tap into technologies developed locally, driven by community needs and priorities. The products of modern science and technology (S&T), from chemical pesticides to carbon-emitting combustion engines, are frequently blamed — with some justification — for the unsustainable use of the planet’s resources. At the same time S&T offers a…
Top Predators Key to Extinctions as Planet Warms
Global warming may cause more extinctions than predicted if scientists fail to account for interactions among species in their models, Yale and UConn researchers argue in Science. Phoebe Zarnetske, the study’s primary author, said the complexity of “species interaction networks” discourages their inclusion in models predicting the effects of climate change. Using the single-species, or…
Star Clusters on a Collision Course
NASA’s Hubble Space Telescope recently observed two clusters full of massive stars that appear to be in the early stages of merging. The clusters are located some 170,000 light-years away in the Large Magellanic Cloud, a small satellite galaxy to our own Milky Way. What at first was thought to be only one cluster in…