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Study shows how planetary building blocks evolved from porous to hard objects

By Guest PostFebruary 25, 2015Scienceaging parents, australia, autophagosom, clara berridge, early solar system, elder abuse, electrostatics, evolution, evolve, fred ciesla, high density, international space station, jagd in afrika, meteorites, nursing home residents, oekotourismus in afrika, planet formation, security camera, software code, wilderei von elefanten

Thinking small has enabled an international team of scientists to gain new insight into the evolution of planetary building blocks in the early solar system.

The researchers compared the results of small-scale numerical simulations of colliding rock and dust particles to the composition of meteorites. They found that collisions helped transform initially porous materials into the more highly solidified asteroids and meteorites observed today. The team of seven scientists published their evidence last month in Nature Communications. (more…)

A Micro-Muscular Break Through

By Guest PostJanuary 13, 2014Scienceartificial muscles, berkeley lab, break through, carbon nanotubes, chromium, chun cheng, electronics industry, electrostatics, energy-efficient, helix, joonki suh, junqiao wu, kai liu, micro explosion, micro muscular, micro systems, milliseconds, motion, optical devices, pantheon of superstars, piezoelectrics, vanadium dioxide

Berkeley Lab Researchers Make a Powerful New Microscale Torsional Muscle/Motor from Vanadium Dioxide

Vanadium dioxide is poised to join the pantheon of superstars in the materials world. Already prized for its extraordinary ability to change size, shape and physical identity, vanadium dioxide can now add muscle power to its attributes. A team of researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) has demonstrated a micro-sized robotic torsional muscle/motor made from vanadium dioxide that for its size is a thousand times more powerful than a human muscle, able to catapult objects 50 times heavier than itself over a distance five times its length within 60 milliseconds – faster than the blink of an eye. (more…)

Tag Archives: electrostatics

Study shows how planetary building blocks evolved from porous to hard objects

A Micro-Muscular Break Through