At 10,000 times smaller than the width of a human hair, you can't see nanoparticles, but you can find them in everyday products like sunscreen and clothing. But environmental and health concerns are mounting about exposure to nanomaterials, sparking a growing debate about their possible regulation.
Given today's environment, it is surprising that there are still thin people around. The origins of this epidemic are pretty easy to spot—lots of food and less opportunity for exercise. And yet, not everyone in the U.S. is overweight. So why is one person fat and the next thin?
I love the idea that he was just listening to the radio one day and heard that the Library of Congress was failing in its struggle to preserve a significant portion of our nation's music and sound heritage. Haber basically thought, "well, as a designer of instrumentation for particle physics, I think I can help." And that's what he did.
Sitting in a small, non-descript room in the basement of the Lawrence Berkeley National Lab in Berkeley, astronomy graduate student Hannah Swift and physicist Saul Perlmutter are searching for supernovae, stars destroyed in huge explosions millions or billions of years ago.
I've always been fascinated by weird animals. Especially those with out-of-the-ordinary genetics. Transcaucasian mole vole. Image Courtesy of Heike HimmelreichOne of my favorites is a little burrowing mammal called a Transcaucasian mole vole. These guys live in the Caucasus Mountains of Armenia, Iran, Turkey, and Azerbaijan. There they are born, live, have babies and die. […]
Humans produce 500 billion plastic bags annually. In China, they recently banned it. Australia, Bangladesh, Ireland, Italy, South Africa,Taiwan, Mumbai and India have either banned it or discouraged its use by raising taxes. And on March 27, 2007, San Francisco became the first city in the USA to ban it from large grocery stores. More […]
Each big storm with a high tide and an onshore wind takes a big bite out of Sarichef.Photo By Shishmaref Erosion and Relocation Coalition In an email this week from John Woodward, an Alaska builder and Home Energy author, he wrote, "I put together a working/management group to manage the relocation of the community of […]
School groups tour the Oakland Schools Science Fair projects at Chabot. Ben Burress, Chabot Space & Science CenterIt's the time of year again that I get a chance to peruse what our scientific-minded youth are thinking on questions of the physical world and universe around us: Oakland Unified School District Science Fair! The science projects […]
Bay Area engineer Ugo Conti has sailed the world, but has always suffered from seasickness. A queasy stomach became his motivation to design "Proteus" — a spider-like sea craft made for smoother sailing. And it may change the way people take to the high seas.
It's the largest laser beam in the world and it's being built in the Bay Area. The National Ignition Facility at Lawrence Livermore National Laboratory will shoot tremendous bursts of energy at an area the size of a pencil eraser. The goal? To create fusion ignition, a potential clean energy source for the 21st century.
Inside the National Ignition Facility. Lawrence Livermore National Lab is building the world's largest laser. Actually, the National Ignition Facility won't have only one laser beam. It will use 192 world-class lasers, all firing simultaneously. In a few billionths of a second about 500 trillion watts, which is nearly 1000 times the power generated in […]
Illustration of a blast of solar wind impacting Earth's protective magnetic field. Credit: NASABreathe in, exhale. Feel the air in your mouth, windpipe, and lungs. That's a sample of Earth's atmosphere: the thin layer of gases enveloping our planet. Did you know that the Sun also has an atmosphere, and that the Earth is inside […]
It's approaching that time of year again: Spring Equinox. The blaze in my home's interior hallway has been signaling this for the last week. The shadow of Chabot's "solar clock" at noon on the equinox produces a pattern of solid green straddling the gnomonI noticed late in the afternoon a couple days ago that the […]
Extreme close-up of the Sun's visible surface, showing 'bubbling' cells of convecting gas–each the size of Northern California. credit: Hinode JAXA/NASA/PPARCBy all accounts, a new cycle-Cycle 24-in solar activity has begun… something you probably didn't notice since the beginning of a solar cycle is quite subtle…. First things first: what is a solar cycle, and […]
View our original YPOQ pilot featuring photographer Russ MorrisDo you love photographing Science, Environment and Nature in Northern California? Would you like to collaborate on a 2-minute QUEST TV short about your photography for an audience of over 100,000 viewers? We're launching a call for submissions for our new series of TV shorts, "YPOQ: Your […]
Saturn's moon Epimetheus from the Cassini spacecraft. Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA and APOD. On the bus in Denali National Park a few years ago, I found myself sitting next a couple from the East Bay. If you’ve ever been on the Denali bus, you know that it’s a long ride and […]
More than meets the eye: The constellation Orion in visible light (left) and infrared (right) Visible light image: Akira Fujii; Infrared image: Infrared Astronomical SatelliteSome months ago my blog, "SOFIA: Fly By Night," talked about the up-and-coming astronomy ace of the night skies, SOFIA: the Stratospheric Observatory for Infrared Astronomy–a 2.5 meter infrared telescope built […]