In the 13th century, Anglo-Normans appropriated the French physique, or remedy, to coin the English physic, or medicine, which is still in dictionaries today. Science historian Howard Markel discusses how physic became physician, and the parallel evolution of the word physics.
A cache of stone tools found in the United Arab Emirates suggests that modern humans may have left Africa earlier — and via a different route — than previously thought. Anthropologist Will Harcourt-Smith describes the finding and how it may change thinking on human origins.
The Macondo spill was just the latest insult to a Gulf Coast already suffering from decades of oil and gas development, river diversions and Hurricane Katrina. Ira Flatow and guests discuss long-term restoration plans for Gulf wetlands and wildlife, and the oil's impact on human health.
In the style of a 1950s horror film, Esteban Valencia, Eduardo Hernandez and Randi Levey, students from Miami Beach Senior High, created a cautionary tale about trashing the beach. The video, Garbage Monsters, got top honors in the Oceans 2030: Youth Outlook Multimedia Contest.
Scientists who study the oceans say the effects of climate change are already being seen in the world's oceans. From acidification and warming temperatures to sea-level rise and sea-ice loss, Ira Flatow and guests look at how the oceans are changing with changes in climate.
Hosts: Marc Pelletier and Simon Melov Seeking to better understand how cellular senescence contributes to the pathophysiology of aging. Guest: Dr. Judith Campisi, Ph.D., professor at the Buck Institute. We invite you to read, add to, and amend our show notes. Comments and suggestions on...
The story of Marie and Pierre Curie is one of love, scientific partnership, and one of the most important discoveries of the 20th century. Artist and author Lauren Redniss discusses her new book, Radioactive, an illustrated biography of the pair and a look at their complicated legacy.
The location of the magnetic North Pole is moving towards Siberia at about 40 miles per year -- and every few hundred thousand years, the north and south poles switch positions entirely. Geophysicist Ronald Merrill explains what's known about the inner workings of the Earth's magnetic field.
The nation's electrical distribution system has been getting less reliable over time, according to an article by electrical engineering professor Massoud Amin. How dependable is our electrical infrastructure, and will plans for a more intelligent 'smart grid' improve its reliability?
Reporting in the journal Science, Paul Sereno, Ricardo Martinez and colleagues describe Eodromaeus murphi. This dinosaur was four feet long, fifteen pounds and lived 230 million years ago, just a few million years after dinosaurs first evolved.
Mobile phone companies are rolling out faster wireless data networks with names like LTE, WiMax and HSPA+, marketing them all under the name '4G.' But are they really much faster than 3G? Engadget senior mobile editor Chris Ziegler talks about how the new networks measure up.
In a recent survey, many college students said body fat is "burned off." Few knew that gym-goers actually break down fat molecules into carbon dioxide and water, extracting energy in the process. Ira Flatow and guests discuss the basics of energy, matter and the carbon cycle.
There are social networks for every application, from location-based services like FourSquare to photo-sharing networks like Instagram. Liz Gannes, senior editor at AllThingsDigital, explains how internet users are splintering their online identities to exploit the strengths of different platforms.
Jim Smith, a 23-year-old in Wappingers Falls, N.Y., is taking citizen science to another level. He designed and built his own 3-D printer, which sits in the corner of his living room. Science Friday visited with Smith, got a tour of the machine and did some printing.
As big science projects generate more and more data, researchers are recruiting citizen scientists to help sift through the information overload. And in the case of new astronomical discoveries, amateur collaborators are even scoring authorship credits on peer-reviewed papers.