News tagged with light energy

Related topics: photosynthesis , light

Model describes universe with no big bang, no beginning, and no end

(PhysOrg.com) -- By suggesting that mass, time, and length can be converted into one another as the universe evolves, Wun-Yi Shu has proposed a new class of cosmological models that may fit observations of the universe better ...

Physics / General Physics

created Jul 29, 2010 | popularity 4.7 / 5 (181) | comments 198 | with audio podcast weblog

A second look at supernovae light: Universe's expansion may be understood without dark energy

(PhysOrg.com) -- The 2011 Nobel Prize in physics, awarded just a few weeks ago, went to research on the light from Type 1a supernovae, which shows that the universe is expanding at an accelerating rate. The ...

Space & Earth / Astronomy

created Oct 24, 2011 | popularity 4.8 / 5 (52) | comments 185 | with audio podcast feature

What will the Large Hadron Collider reveal?

With its successful test run at the end of 2009, the Large Hadron Collider near Geneva, Switzerland, seized the world record for the highest-energy particle collisions created by mankind. We can now reflect ...

Physics / General Physics

created Jan 07, 2010 | popularity 4.6 / 5 (48) | comments 23

Novel negative-index metamaterial that responds to visible light designed

A group of scientists led by researchers from the California Institute of Technology has engineered a type of artificial optical material—a metamaterial—with a particular three-dimensional structure such that ...

Physics / Optics & Photonics

created Apr 22, 2010 | popularity 4.8 / 5 (43) | comments 10 | with audio podcast

Scientists discover first new chlorophyll in 60 years

(PhysOrg.com) -- University of Sydney scientists have stumbled upon the first new chlorophyll to be discovered in over 60 years and have published their findings in the international journal Science.

Biology / Cell & Microbiology

created Aug 20, 2010 | popularity 4.9 / 5 (38) | comments 36 | with audio podcast

Large Hadron Collider gains pace: CERN

The world's biggest atom smasher is swiftly gaining pace as scientists seek to unravel the secrets of the universe, the European Organisation for Nuclear Research (CERN) said on Monday.

Physics / General Physics

created Jun 28, 2010 | popularity 4.5 / 5 (35) | comments 157

Researchers develop a way to funnel solar energy

(PhysOrg.com) -- Using carbon nanotubes (hollow tubes of carbon atoms), MIT chemical engineers have found a way to concentrate solar energy 100 times more than a regular photovoltaic cell. Such nanotubes could ...

Nanotechnology / Nanomaterials

created Sep 12, 2010 | popularity 4.7 / 5 (32) | comments 15 | with audio podcast

Low-cost LEDs to slash household electric bills

A new way of making LEDs could see household lighting bills reduced by up to 75% within five years.

Technology / Engineering

created Jan 29, 2009 | popularity 4.5 / 5 (33) | comments 30

Fuel efficiency of vehicles on the road: Little progress since the 1920s

(PhysOrg.com) -- Vehicles on America's roads today get only about three miles more per gallon than vehicles back in 1923, University of Michigan researchers say.

Technology / Energy & Green Tech

created May 05, 2009 | popularity 4.4 / 5 (30) | comments 22

British engineers slam home wind turbines as 'eco-bling'

Installing wind turbines and solar panels in people's homes is "eco-bling" that will not help meet Britain's targets on cutting carbon emissions, engineers warned Wednesday.

Technology / Energy & Green Tech

created Jan 20, 2010 | popularity 4.4 / 5 (29) | comments 9

New picture of atomic nucleus emerges

(PhysOrg.com) -- When most of us think of an atom, we think of tiny electrons whizzing around a stationary, dense nucleus composed of protons and neutrons, collectively known as nucleons. A collaboration between ...

Physics / General Physics

created Mar 02, 2012 | popularity 4.3 / 5 (29) | comments 14 | with audio podcast

New way to extract light from semiconductors could lead to ultra-high efficiency LEDs

(PhysOrg.com) -- By fabricating ridges coated with silicon dioxide (SiO2) on the surface of a semiconductor, scientists from the National Institute of Advanced Industrial Science and Technology (AIST) in ...

Physics / Condensed Matter

created May 14, 2010 | popularity 4.8 / 5 (25) | comments 8 | with audio podcast report

Scientists invent long-lasting, near infrared-emitting material

Materials that emit visible light after being exposed to sunlight are commonplace and can be found in everything from emergency signage to glow-in-the-dark stickers. But until now, scientists have had little ...

Nanotechnology / Nanomaterials

created Nov 20, 2011 | popularity 4.5 / 5 (26) | comments 10 | with audio podcast

Smart Lighting: New LED Drops the 'Droop'

(PhysOrg.com) -- Researchers at Rensselaer Polytechnic Institute have developed and demonstrated a new type of light emitting diode (LED) with significantly improved lighting performance and energy efficiency.

Physics / General Physics

created Jan 12, 2009 | popularity 4.8 / 5 (24) | comments 14

Plans for an international linear electron smasher - the ILC

(PhysOrg.com) -- Physicists at the European particle physics laboratory CERN are planning a straight collider 31 kilometers long to complement the Large Hadron Collider (LHC) and help them explain the mysteries ...

Physics / General Physics

created Jul 26, 2010 | popularity 5 / 5 (21) | comments 23 | with audio podcast report