March 21, 2014 |
WHEN you lose your keys, you know you'll probably find them in your other pants. Lose the key to proving that all known matter is symmetrical and stable, and you're in bigger trouble, as someone may have left that key in another universe. So we learn in the absorbing documentary "Particle Fever," about physicists, the Large Hadron Collider and the search for the so-called God particle, the theoretical missing piece of matter that would verify modern theories about forces that created the universe, and bind matter together.
March 16, 2013 |
GENEVA, Switzerland - The search is all but over for a subatomic particle that is a crucial building block of the universe. Physicists announced Thursday that they believe they had confirmed discovery of the particle, which will go a long way toward explaining what gives electrons and all matter in the universe size and shape. The elusive particle, called a Higgs boson, was predicted in 1964 to help fill in our understanding of the creation of the universe, which many theorize occurred in a massive explosion known as the big bang.
February 22, 2013 |
IT'S A SMOGGY SUMMER DAY. The air feels thick. Most people know their lungs might suffer on such days. But increasingly, medical researchers are seeing harmful effects from air pollution on the heart, as well. "Inhaling a heart attack" is how one publication put it. Air pollution has both short- and long-term effects that can injure the heart and blood vessels, causing or exacerbating strokes, congestive heart failure, clogged arteries and other problems, research has shown.
December 25, 2012 |
Imagine a particle 1/10,000 of a cross-section of a human hair. That's the size of a protein, way smaller than a cell. Bernardo Cordovez, 29, and his partners have come up with something they call a NanoTweezer that allows them to pick up and move that kind of teeny-tiny particle using a laser beam of light. There's been a lot of talk about trying to bring high-tech, high-potential businesses to Philadelphia, and the story behind how Cordovez's very small company, Optofluidics Inc., landed here provides an object lesson.
October 28, 2012
Sunday Cage festival Composer John Cage is most famous for his conceptual 1952 piece 4'33" - which consisted of performers sitting quietly for that length of time - but he left a legacy of music with sound that was vastly influential in its use of chance creation, electronics, and physically altered instrumentation. The presenting organization Bowerbird has put together a citywide celebration of Cage that runs in three parts from October to January, and features many of Cage's first interpreters.
August 11, 2012
HARRISBURG - The Pennsylvania Liquor Control Board announced a voluntary recall of some lots of 1800 brand tequila because of the potential presence of glass particles in the bottles. The recalled bottles are 1.75 liter Silver, Reposado, and Coconut. All other size bottles, as well as 1800 Tequila Anejo, Select Silver, and 1800 Ultimate Margarita, are not affected. According to the manufacturer, Agavera Camichines S.A. de C.V., the glass stoppers may have been damaged during transport and while no injuries have been reported, the presence of small particles of glass could pose a health risk.
July 10, 2012 |
WHAT DOES IT mean that the biggest news story in the world — last week's announcement that scientists have confirmed the existence of the Higgs boson, the "God particle" — was probably understood by .?.?. pretty much no one? The discovery is being hailed as game-changer in how we understand the universe. Of course by "we," we mean those people who devote their lives to physics or science. The rest of us either don't care or are interested but too embarrassed to admit that we never even took chemistry class, let alone physics.
July 5, 2012 |
GENEVA, Switzerland - Scientists at the world's biggest atom smasher hailed the discovery of "the missing cornerstone of physics" Wednesday, cheering the apparent end of a decades-long quest for a new subatomic particle called the Higgs boson, or "God particle," which could help explain why all matter has mass and crack open a new realm of subatomic science. First proposed as a theory in the 1960s, the maddeningly elusive Higgs had been hunted by at least two generations of physicists who believed it would help shape our understanding of how the universe began and how its most elemental pieces fit together.
July 3, 2012 |
GENEVA, Switzerland - Scientists working at the world's biggest atom smasher plan to announce Wednesday that they have gathered enough evidence to show that the long-sought particle that may answer fundamental questions about the universe almost certainly does exist. But after decades of work and billions of dollars spent, researchers at the European Organization for Nuclear Research (CERN) aren't quite ready to say they've "discovered" the particle. A number of Philadelphia-area scientists have spent years on the hunt, including contingents from Princeton and Rutgers Universities.
June 15, 2012 |
WASHINGTON - The Environmental Protection Agency will announce a proposal Friday to tighten the nation's soot standards, a move that could help deliver major health benefits by the end of the decade but force some oil refiners, manufacturers, and other operations to invest in pollution-abatement upgrades. Particle pollution measuring less than 2.5 micrometers in diameter, also known as fine particles or soot, is possibly the most deadly widespread air pollutant. Measuring one-thirtieth the width of a human hair, these particles come from activities ranging from wood-burning to vehicle emissions and can cause respiratory and heart ailments by entering the lungs and bloodstream.