News tagged with force required


Physicists Find that Size Matters When Initiating an Object's Movement Through Grains

Physicists Find that Size Matters When Initiating an Object's Movement Through Grains

Physics / General Physics

created Sep 26, 2008 | popularity 4.1 / 5 (13) | comments 0

A team of Penn State physicists has discovered that the size of grains, such as sand, above a buried object is important in determining the force required to begin raising the object. No one, until now, has ...





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Tw studies examine medical consequences of police use of force during restraint

Medicine & Health / Other

created May 17, 2009 | popularity 2.8 / 5 (4) | comments 0

Dr. Jared Strote at the University of Washington Medical Center led a group that examined the medical records of nearly 900 patients subdued by the Seattle Police Department with a Taser over a six-year period. Less than ...


Vitamin D tied to muscle power in adolescent girls

Medicine & Health / Health

created Feb 03, 2009 | popularity 4.4 / 5 (5) | comments 0

Vitamin D is significantly associated with muscle power and force in adolescent girls, according to a new study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).


Environmentalists plan suit to protect ice seals

Biology / Ecology

created Jun 04, 2009 | popularity 3 / 5 (2) | comments 0

(AP) -- An environmental group says it will sue the federal government to force a decision on additional protections for Arctic seals.


New algorithms for computerized, large-scale surveillance

New algorithms for computerized, large-scale surveillance

Technology / Engineering

created Dec 02, 2009 | popularity 3 / 5 (2) | comments 0

A recent AFOSR-funded technology should enable the Air Force to achieve advances in object and target detection technology by using sophisticated algebraic theories called groups, rings and fields.


Improving AF situational awareness with smart satellite imagery

Improving AF situational awareness with smart satellite imagery

Technology / Other

created Jul 29, 2009 | popularity not rated yet | comments 0

Researchers from the University of Southern California (USC) and small business Geosemble Technologies are improving Air Force situational awareness with software that presents vast amounts of map data in ...


New research may lead to revolutionary new devices

New research may lead to revolutionary new devices

Nanotechnology / Nanomaterials

created Sep 25, 2009 | popularity 4.3 / 5 (7) | comments 1

Dr. Jiwoong Park of Cornell University, who receives funding for basic research from the Air Force Office of Scientific Research (AFOSR), is investigating carbon nanostructures that may some day be used in ...


Photonic Circuit

'The photon force is with us': Harnessing light to drive nanomachines

Nanotechnology / Nanophysics

created Nov 26, 2008 | popularity 4 / 5 (25) | comments 3

Science fiction writers have long envisioned sailing a spacecraft by the optical force of the sun's light. But, the forces of sunlight are too weak to fill even the oversized sails that have been tried. Now ...


Small optical force can budge nanoscale objects

Small optical force can budge nanoscale objects

Nanotechnology / Nanophysics

created Nov 17, 2009 | popularity 4.9 / 5 (14) | comments 0

(PhysOrg.com) -- Engineering researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers.


Nuclear scientist says first Soviet A-bomb 'miracle': report

Other Sciences / Other

created Aug 30, 2009 | popularity 3.3 / 5 (3) | comments 2

A nuclear scientist involved in the Soviet Union's first atomic test 60 years ago hailed it "a miracle" Saturday and called for a national day of celebration, RIA Novosti news agency reported.


Particle physics study finds new data for extra Z-bosons and potential fifth force of nature

Physics / General Physics

created Apr 28, 2009 | popularity 4.7 / 5 (21) | comments 13

The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator ...



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