News tagged with tetrahedron
Entropy alone creates complex crystals from simple shapes, study shows
Dec 09, 2009 |
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(PhysOrg.com) -- In a study that elevates the role of entropy in creating order, research led by the University of Michigan shows that certain pyramid shapes can spontaneously organize into complex quasicrystals.
Scientists Build Nanostructures out of Single DNA Strands
Nanotechnology / Bio & Medicine
Sep 08, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- With its unique double-helical structure, DNA has the ability to be used as a programmable building material to construct designer nanoscale architectures. Complex DNA architectures could ...
The Beaver as Chemist: Total Synthesis of Enantiomerically Pure Nupharamine Alkaloids from Castoreum
Feb 16, 2009 |
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(PhysOrg.com) -- Castoreum, the dried scent glands of the Canadian beaver, was once one of the most valuable scent components derived from animals. Castoreum contains a complex mixture of substances, including a number of ...
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Physicists create first robust DNA building blocks
Dec 09, 2005 |
4.3 / 5 (12) |
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Physicists from the University of Oxford have designed the first structurally robust, self-assembling DNA building blocks. The DNA tetrahedra, 10,000,000,000 (ten thousand million) of which could fit on the ...
NASA Mission Gets Closer to Solving Magnetic Reconnection Mystery (w/ Videos)
Space & Earth / Space Exploration
Jul 21, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- NASA is designing a mission to investigate one of the most fundamental and explosive physical processes in the universe - magnetic reconnection. Known as the Magnetospheric MultiScale (MMS) ...
Mathematicians set world record in packing puzzle
Aug 12, 2009 |
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(PhysOrg.com) -- Finding the best way to pack the greatest quantity of a specifically shaped object into a confined space may sound simple, yet it consistently has led to deep mathematical concepts and practical ...
Cluster spacecraft makes a shocking discovery
May 14, 2007 |
4.5 / 5 (118) |
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ESA's Cluster was in the right place and time to make a shocking discovery. The four spacecraft encountered a shock wave that kept breaking and reforming – predicted only in theory.
New clues about a hydrogen fuel catalyst
Aug 05, 2009 |
4 / 5 (6) |
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(PhysOrg.com) -- To use hydrogen as a clean energy source, some engineers want to pack hydrogen into a larger molecule, rather than compressing the gas into a tank. A gas flows easily out of a tank, but getting ...
Nano sculptures in gold
Aug 01, 2008 |
4.1 / 5 (20) |
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If someone is charged up, the colour of their face might change, but they don't immediately pull off one of their arms, only to reattach it as a third leg. With some molecules, however, the situation is quite ...
NASA Tests Shape-Shifting Robot Pyramid for Nanotech Swarms
Mar 31, 2005 |
5 / 5 (2) |
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Like new and protective parents, engineers watched as the TETWalker robot successfully traveled across the floor at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Robots of this type will eventually ...
New mathematics-based sculpture unveils fourth dimension
Oct 20, 2005 |
4.4 / 5 (168) |
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Artistic works traditionally carry significance beyond their physical beauty, but a new sculpture in the McAllister Building headquarters of the Penn State Department of Mathematics may carry that tradition ...
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