Latest Physical phenomena Stories

Caged Atoms Used To Create Electricity
2013-09-23 08:49:43

Vienna University of Technology At the Vienna University of Technology, a new class of thermoelectric materials has been discovered; Due to a surprising physical effect they can be used to create electricity more efficiently A lot of energy is wasted when machines turn hot, unnecessarily heating up their environment. Some of this thermal energy could be harvested using thermoelectric materials; they create electric current when they are used to bridge hot and cold objects. At the Vienna...

How Do You Boil Water Without Bubbles?
2012-09-14 05:02:11

Watch the Video: Boiling Water Without Bubbles April Flowers for redOrbit.com - Your Universe Online How do you tell if water is boiling? You look for the bubbles, because every cook knows boiling water bubbles. But now, research from Northwestern University is turning that notion on its head. “We manipulated what has been known for a long, long time by using the right kind of texture and chemistry to prevent bubbling during boiling,” said Neelesh A. Patankar, professor...

2011-10-24 18:36:41

Nanoparticulate flow in a curved pipe differs to that in a straight pipe, and is of scientific and technological interest. The length of flow path within a curved pipe is generally short, and the fluid experiences a centrifugal force which significantly changes the particle distribution both inside and downstream of the pipe. This phenomenon is more obvious when particle coagulation occurs. Prior to this study, nanoparticle migration in a rotating curved pipe with consideration of coagulation...

2011-06-30 01:43:42

Lasers allow scientists to observe how electrons become entangled A Princeton researcher and his international collaborators have used lasers to peek into the complex relationship between a single electron and its environment, a breakthrough that could aid the development of quantum computers. The technique reveals how an isolated electron and its surroundings develop a relationship known as a Kondo state "“ a state of matter that is of great interest to physicists and engineers. The...

2009-12-10 14:15:42

DARPA to provide funding to quell Casimir force Scientists at the U.S. Department of Energy's Argonne National Laboratory are developing a way to control the Casimir force, a quantum mechanical force, which attracts objects when they are only hundred nanometers apart. "The Casimir force is so small that most experimentation has dealt simply with its characteristics," said Derrick Mancini, interim director of the Center for Nanoscale Materials. "If we can control this force or make it...

2009-01-08 15:05:00

Scientists say they have discovered the mechanism that causes tiny objects to levitate, a discovery that may pave the way for the ability to create nanotechnology machines in the future. The apparent levitation was observed as a result of repulsive force between a thin sheet of silica and a small gold-plated bead, Harvard physicist Federico Capasso and colleagues reported in the journal Nature.This so-called Casimir force of repulsion could be replicated and used to create friction-free parts...

2008-09-21 15:30:00

Scientists at the IBM (NYSE: IBM) Almaden Research Center in San Jose, CA have forged a breakthrough in understanding an intriguing phenomenon in fundamental physics: the Kondo effect. They report their findings today in the scientific journal Nature Physics. The Kondo effect, one of the few examples in physics where many particles collectively behave as one object (a single quantum-mechanical body), has intrigued scientists around the world for decades. Now, using a technique that was...

2008-07-14 16:34:02

Cymbals don't clash of their own accord "“ in our world, anyway. But the quantum world is bizarrely different. Two metal plates, placed almost infinitesimally close together, spontaneously attract each other. What seems like magic is known as the Casimir force, and it has been well-documented in experiments. The cause goes to the heart of quantum physics: Seemingly empty space is not actually empty but contains virtual particles associated with fluctuating electromagnetic fields. These...

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