Latest Physical quantities Stories

How We Perceive Movement Through Space And Time Is Directly Connected
2013-03-13 21:50:31

redOrbit Staff & Wire Reports - Your Universe Online From time immemorial, humans have grappled to understand the slippery notion of time, often drawing on familiar metaphors of physical motion such as “time flies” or “time marches on.” When Einstein published his paper on special relativity in 1905, he forever fused the notions of space and time into a single, mind-boggling, yet mathematically elegant, concept known as spacetime. Now, new research on the human...

Better Accuracy For Optical Strontium Clock
2013-01-03 11:30:03

Alpha Galileo Foundation PTB measures the influence of the ambient temperature on strontium atoms for the first time — measurement uncertainty reduced by one order of magnitude An optical clock with neutral strontium atoms is considered one of the top candidates for the definition of a "new" second. The probabilities have increased considerably, since its frequency will now be determined more accurately (probably by an order of magnitude). Scientists of the Physikalisch-Technische...

Engineers Create Roll Up Conductors To Save Chip Space
2012-12-14 13:34:45

University of Illinois On the road to smaller, high-performance electronics, University of Illinois researchers have smoothed one speed bump by shrinking a key, yet notoriously large element of integrated circuits. Three-dimensional rolled-up inductors have a footprint more than 100 times smaller without sacrificing performance. The researchers published their new design paradigm in the journal Nano Letters. “It´s a new concept for old technology,” said team leader...

Boosting Heat Transfer With Nanoglue
2012-12-04 20:34:42

Rensselaer Polytechnic Institute A team of interdisciplinary researchers at Rensselaer Polytechnic Institute has developed a new method for significantly increasing the heat transfer rate across two different materials. Results of the team´s study, published in the journal Nature Materials, could enable new advances in cooling computer chips and lighting-emitting diode (LED) devices, collecting solar power, harvesting waste heat, and other applications. By sandwiching a layer of...

Word of the Day
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'