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A fish that pushes in the wrong direction solves a mystery of animal locomotion

Researchers discovered that fish use a counterintuitive fin arrangement to increase both stability and maneuverability. By analyzing slow-motion videos and mathematical models, the team found that the opposing forces generated by the fin movements create stabilizing forces while improving velocity change.

SourceNew Jersey Institute of Technology·JournalProceedings of the National Academy of Sciences·DateNov 7, 2013

Cebit 2012: 3-D animations for everyone

Researchers at the Max Planck Institute for Informatics have developed two computer programs that can create 3D characters in mere seconds. The software uses databases of pre-made models to simplify the creation process, allowing users to assemble and animate their own custom characters.

How to learn a star's true age

Researchers have found a method to measure a star's true age using its spin. Astronomer Soren Meibom presented his findings in a press conference, nearly doubling the age covered by previous studies of younger clusters. The technique involves measuring stellar rotation rates for stars in clusters with known ages.

SourceCenter for Astrophysics | Harvard & Smithsonian·JournalThe Astrophysical Journal Letters·DateMay 24, 2011

Not just for raincoats

The study reveals a miniature version of the 'water hammer' effect, which causes pressure spikes in water droplets on textured surfaces. This insight could lead to the design of more effective superhydrophobic surfaces for various applications, including energy efficiency improvements.

SourceNorthwestern University·JournalPhysical Review Letters·DateFeb 8, 2011

The first mission to Mercury

MESSENGER's successful entry into Mercury's orbit marks a major milestone in understanding the planet's origin, composition, and geological history. The spacecraft has captured stunning images of Mercury's previously unexplored hemisphere, revealing its intricate details.

SourceIOP Publishing·JournalPhysics World·DateFeb 1, 2011

Secrets of sharks' success

Flexible scales on sharks' bodies allow for change in direction while swimming at full speed by controlling water flow separation. This discovery has implications for designing more efficient aircraft, wind turbines, and other systems prone to flow separation issues.

Should airplanes look like birds?

Researchers in California and South Africa re-designed an aircraft with a bird-inspired shape to improve aerodynamics and reduce fuel consumption. The study showed that a flying wing configuration can generate nearly wing-only levels of lift and drag, potentially making planes more energy efficient.

Getting bubbles out of fuel pumps

A team of researchers has developed a way to prevent cavitation damage in jet fuel pumps, essential components in modern aircraft. The study provides realistic data for computer models, enabling designers to create lighter, more efficient, and longer-lasting pumps.

SourceAmerican Institute of Physics·JournalPhysics of Fluids·DateNov 16, 2010

Breaking the ice before it begins

Researchers at Harvard University have designed nanostructured materials that prevent ice formation by repelling water droplets. The breakthrough could lead to efficient and sustainable solutions for keeping surfaces ice-free during harsh winter weather.

SourceHarvard University·JournalACS Nano·DateNov 12, 2010