(PhysOrg.com) -- How many sweets fit into a jar? This question depends on the shapes and sizes of the sweets, the size of the jar, and how it is filled. Surprisingly, this ancient question remains unanswered because of the ...
General Physics
Jul 29, 2009
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(PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, i. e., one photon ...
Condensed Matter
Jul 23, 2009
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(PhysOrg.com) -- Separating carbon dioxide from its polluting source, such as the flue gas from a coal-fired power plant, may soon become cleaner and more efficient.
Other
Jul 22, 2009
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Fast and affordable genome sequencing has moved a step closer with a new solid-state nanopore sensor being developed by researchers at the University of Illinois.
Nanomaterials
Jun 2, 2009
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In contrast to women, men are fertile throughout life, but research at the Sahlgrenska Academy, University of Gothenburg, Sweden, has now shown that a fertilising sperm can get help from the egg to rejuvenate. The result ...
Cell & Microbiology
Mar 25, 2009
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Samsung Electronics today unveiled two new 12 mega-pixel compact digital cameras boasting 24mm ultra-wide angle Schneider lenses. Samsung’s new TL320 raises the bar for innovation in the digital imaging industry as it is ...
Consumer & Gadgets
Feb 24, 2009
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Proteins are widely viewed as a promising alternative to synthetic chemicals in everything from medications to hand lotion. The naturally occurring molecules have been shown to be more efficient and effective than many of ...
Biochemistry
Feb 23, 2009
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The most significant predictors of bug biodiversity in Los Angeles are proximity to the mountains and temperature stability throughout the year, according to a study we co-authored with Brian V. Brown of the Los Angeles Natural ...
Plants & Animals
Jul 22, 2024
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It's not just salary anymore.
Economics & Business
Jun 17, 2024
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This NASA/ESA Hubble Space Telescope image features the globular cluster NGC 2005. It's not an unusual globular cluster in and of itself, but it is a peculiarity when compared to its surroundings.
Astronomy
Jun 17, 2024
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