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Electron's 1-D metallic surface state observed

A group of researchers created a unique 1D nano electronic system on the surface of a solid and observed its electronic state using photo-emitted electrons. This discovery will help elucidate the mystery of unique electronic properties of 1D nano metals.

SourceOsaka University·JournalPhysical Review Letters·DateFeb 7, 2016

Kinetic battery chargers get a boost

Researchers have developed a kinetic energy harvester that captures the energy generated by human movements and converts it into electrical energy. The system uses a flexible cantilever to bend with body movements, producing a small but significant voltage that can be stored in a capacitor.

SourceInderscience Publishers·JournalInternational Journal of Biomechatronics and Biomedical Robotics·DateFeb 19, 2014

A temperature below absolute zero

Researchers at Max-Planck-Gesellschaft create an atomic gas that exhibits a negative Kelvin temperature, where particles possess high energies despite being thermally insulated. This phenomenon challenges traditional notions of heat and cold, with potentially groundbreaking implications for thermodynamics and quantum mechanics.

SourceMax-Planck-Gesellschaft·JournalScience·DateJan 4, 2013

Are high speed elephants running or walking?

Researchers measure forces exerted on elephants to determine their movement patterns, finding that high-speed elephants exhibit characteristics of both running and walking. The study reveals that elephants' cost of transport is low due to efficient energy conversion, with a step frequency higher than expected.

SourceThe Company of Biologists·JournalJournal of Experimental Biology·DateFeb 12, 2010

The cost of being on your toes

A University of Utah study shows that heel-first walking is more economical for humans than ball-of-foot or toe walking. The research suggests that early human hunter-gatherers may have retained this foot posture due to its stability and agility advantages, despite being less efficient for running.

SourceUniversity of Utah·JournalJournal of Experimental Biology·DateFeb 12, 2010

Soldiers turn a march into a charge

Engineers at the University of Leeds are developing a system to harness kinetic energy from soldiers' marches, capturing up to 15% of their foot-power to reduce pack weight. The project also aims to adapt radio equipment to run on low power budgets, enhancing soldier mobility and reducing fatigue.