Researchers have demonstrated a prototype nanometer-scale generator that produces continuous direct-current electricity by harvesting mechanical energy from such environmental sources as ultrasonic waves, mechanical vibration or blood flow.
Geophysicists at the University of Rochester announce in today’s issue of Nature that the Earth’s magnetic field was nearly as strong 3.2 billion years ago as it is today.
The findings, which are contrary to previous studies, suggest that even in its earliest stages the Earth was already well protected from the solar wind, which can strip away a planet’s atmosphere and bathe its surface in lethal radiation.
The last quadripolar magnet was brought down into the tunnel of the world’s largest particle accelerator; the CERN’s1 LHC, or Large Hadron Collidor. This magnet is part of a series of 392 units which will ensure that the beams are kept on track all along their trajectory through the tunnel. Its installation marks the completion of a long and fruitful collaboration between the CERN, the CNRS/IN2P32 and the CEA/DSM3 in the field of superconductivity and advanced cryogenics.
The New York Mets should expect to win about 90 games in 2007 and the Yankees a whopping 110 games to lead their divisions, said Bruce Bukiet, PhD, an associate professor of mathematical sciences at New Jersey Institute of Technology (NJIT). Bukiet, who is also an associate dean of NJIT’s College of Science and Liberal Arts offers the expectations for the number of games each major league baseball team should win based on his mathematical model, developed in 2000.
Scientists at the University of Illinois have fabricated the world’s smallest chain-mail fabric. Combined with existing processing techniques, the flexible, metallic fabric holds promise for fully engineered smart textiles.
"The miniature fabric is an important step toward creating textiles where structure and electronics can be designed, integrated and controlled from the ground up," said Chang Liu, a Willett Scholar and a professor of electrical and computer engineering at Illinois.
Using measurements of the four ESA's Cluster satellites, a study published this week in Nature Physics shows pioneering experimental evidence of magnetic reconnection also in turbulent 'plasma' around Earth.This image provides a model of magnetic fields at the Sun's surface using SOHO data, showing irregular magnetic fields (the ‘magnetic carpet’) in the solar corona (top layer of the Sun's atmosphere).
Juicing up your cell phone or iPod may take on a whole new meaning in the future. Researchers at Saint Louis University in Missouri have developed a fuel cell battery that runs on virtually any sugar source — from soft drinks to tree sap — and has the potential to operate three to four times longer on a single charge than conventional lithium ion batteries, they say.
The American Institute of Mathematics (AIM), one of the leading math institutes in the U.S., announced today that after four years of intensive collaboration, 18 leading mathematicians and computer scientists from the U.S. and Europe have successfully mapped E8, one of the largest and most complicated structures in mathematics. Partners on this project included MIT, Cornell University, University of Michigan, University of Utah and University of Maryland.The E8 root system consists of 240 vectors in an eight-dimensional space.
A new light source based on fiber-optic technology promises to improve the inspection of food, produce, paper, currency, recyclables and other products. New research revealing this technology will be presented at the Optical Fiber Communication Conference and Exposition/National Fiber Optic Engineers Conference (OFC/NFOEC), being held March 25-29 in Anaheim, Calif.
The Internet is enough of a marvel that most people would never ask, "Is this really how we would build it if we could design it all today?" But asking that very question is the job of a broad-based team of Stanford researchers. Taking a nothing-is-sacred approach to better meet human communications needs, this month they are launching a new program called the Clean Slate Design for the Internet. They will present their ideas March 21 during a daylong workshop at the annual meeting of the Stanford Computer Forum.