In his State of the Union address, President Obama proposed a massive scientific endeavor to map the human brain. It's a multi-billion dollar, multi-year project that's meant to do for neuroscience what the Human Genome Project did for DNA. How will scientists actually achieve it? We talk with Dr. Christof Koch from the Allen Institute for Brain Science and Dr. Patricia Kuhl from the UW Institute for Learning and Brain Science.
Researchers who studied pieces of the meteor collected near Lake Cherbarkul say it was a common chondrite meteor. The largest of the 53 fragments was one centimeter in diameter. Photo provided by the Urals Federal University Press Service.
The meteor that caused at least 1,000 injuries in Russia after a startling and powerful daytime explosion one week ago has been identified as a chondrite. Russian scientists who analyzed fragments of the meteor, whose large size and well-documented impact made it a rarity, say that its composition makes it the most common type of meteor we encounter here on Earth.
Ultraviolet (false color). Bees and other pollinators can see the ultraviolet end of the spectrum. They are guided by patterns on flowers that are invisible to humans.
Credit Adam Cole / NPR
Fragrance plume (artist's depiction). Bees follow specific odors to locate flowers and, once they arrive, use scent maps to move toward the center of the flower. Fragrance that clings to a bee provides information for other bees back at the hive.
Credit Adam Cole / NPR
Electric field (artist's depiction). Flowers have a weak negative electric charge relative to the air around them. Different flowers have different electric fields, often with charge concentrated at the tips of the petals.
Credit Kevin Collins
Visible spectrum. Certain bright colors and petal shapes attract certain pollinators.
Flowers are nature's ad men. They'll do anything to attract the attention of the pollinators that help them reproduce. That means spending precious energy on bright pigments, enticing fragrances and dazzling patterns.
Now, scientists have found another element that contributes to flowers' brand: their distinct electric field.
Anne Leonard, who studies bees at the University of Nevada, says our understanding of pollinator-flower communication has been expanding for decades.
When science fiction author and casual prophet Isaac Asimov wrote about his visit to the World’s Fair in New York in 1964, he imagined what the world would be like in 50 years. Almost 50 years later he seems to have gotten a few things right: “Robots will neither be common nor very good in 2014, but they will be in existence. The IBM exhibit at the present fair has no robots but it is dedicated to computers, which are shown in all their amazing complexity, notably in the task of translating Russian into English.”
An undated handout graphic distributed on July 4, 2012 by the European Organization for Nuclear Research (CERN) in Geneva shows a representation of traces of traces of a proton-proton collision measured in the Compact Muon Solenoid (CMS) experience in the search for the Higgs boson.