An international particle physics collaboration today (Thursday, March 8) announced its first results toward answering a longstanding question - how the elusive particles called neutrinos can appear to vanish as they travel through space.
After just three months of operation, the Daya Bay Reactor Neutrino Experiment has far surpassed expectations, recording tens of thousands of particle interactions and paving the way to a better understanding of neutrinos and why the universe is built of matter rather than antimatter.
Integrating a complex, single-crystal material with "giant" piezoelectric properties onto silicon, University of Wisconsin–Madison engineers and physicists can fabricate low-voltage, near-nanoscale electromechanical devices that could lead to improvements in high-resolution 3-D imaging, signal processing, communications, energy harvesting, sensing, and actuators for nanopositioning devices, among others.
At the heart of most celestial objects is a dynamo. The Earth's dynamo, spun to life in the molten metal core of our planet, generates a magnetic field that helps us find north and, perhaps more critically, shields us from solar winds that would otherwise singe our planet.
To survive in a tumultuous environment, sea urchins literally eat through stone, using their teeth to carve out nooks where the spiny creatures hide from predators and protect themselves from the crashing surf on the rocky shores and tide pools where they live.
It is the start of the final Antarctic drilling season for IceCube, and as researchers descend on the South Pole, there is additional reason for celebration. The National Science Foundation has signed a five-year, $34.5-million agreement with the University of Wisconsin–Madison to operate the unique IceCube telescope - a cubic kilometer in volume - buried in the Antarctic ice sheet between 1,400 meters and 2,400 meters deep.
Though still under construction, the IceCube Neutrino Observatory at the South Pole is already delivering scientific results - including an early finding about a phenomenon the telescope was not even designed to study.
July 12, 2010
The audience laughs and applauds as the performers on stage pull trick after trick from their sleeves: suspending a ball in midair, defying gravity, turning water into ice right before people's eyes.
Daniel Lecoanet, who will graduate with comprehensive honors from University of Wisconsin–Madison this spring with a double major in math and physics, has won a five-year, no-strings-attached fellowship to pursue graduate studies.
Exerting delicate control over a pair of atoms within a mere seven-millionths-of-a-second window of opportunity, physicists at the University of Wisconsin–Madison created an atomic circuit that may help quantum computing become a reality.