Old-style 100-watt light bulbs will be banned in Europe's shops from next week in favour of new energy-saving models, but consumers groups on Wednesday gave the move a guarded welcome.
Energy & Green Tech
Aug 26, 2009
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The advent of intense ultrashort coherent light pulses has revolutionized the spectroscopy field. They allow easy observation of various nonlinear optical effects and facilitate the characterization of materials with nonlinear ...
Optics & Photonics
Feb 3, 2023
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In a leap forward for laser technology, a team at University of California, Santa Barbara, has developed the first violet nonpolar vertical-cavity surface-emitting lasers (VCSELs) based on m-plane gallium nitride semiconductors.
Optics & Photonics
Jul 23, 2012
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(PhysOrg.com) -- Thermal management is crucial in the development of new car batteries; NREL's Large-Volume Calorimeter helps prepare for a surge in electric vehicles.
Energy & Green Tech
May 16, 2011
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Thanks to optical signals, mails and data can be transmitted rapidly around the globe. But also exchange of digital information between electronic chips may be accelerated and energy efficiency might be increased by using ...
Optics & Photonics
Feb 18, 2014
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Computer files that allow us to watch videos, store pictures, and edit all kinds of media formats are nothing else but streams of "0" and "1" digital data, that is, bits and bytes. Modern computing technology is based on ...
General Physics
Aug 1, 2011
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University of Notre Dame researcher Robert Nerenberg can tell you many things you might not know about wastewater treatment plants, including their significant carbon footprint, energy demands and chemical costs. His past ...
Environment
Nov 16, 2012
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By 2050 world population is projected to reach 10 billion people, and energy needs will double from what we require today. "We are nowhere near ready," said Héctor D. Abruña at a Charter Day Weekend lecture, "Cornell and ...
Energy & Green Tech
Apr 29, 2015
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With climate change threatening and worldwide CO2 emission levels higher than ever, the need for renewable energy technologies is now critical. But for widespread market acceptance, these new technologies have to be cheap, ...
Energy & Green Tech
Nov 4, 2013
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(PhysOrg.com) -- Even in today's increasingly energy-conscious world, it's rare for the subject of energy efficiency to be addressed in the early stages of designing a new building, whether it's a single-family home or a ...
Engineering
Feb 24, 2010
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