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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Watching Proteins Direct Crystal Growth One Step at a Time (w/ Video)

Watching Proteins Direct Crystal Growth One Step at a Time (w/ Video)

Nanotechnology / Nanophysics

created Dec 16, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Scientists at Berkeley Lab's Molecular Foundry imaged the growth of protein-studded mineral surfaces with unprecedented resolution and provided a glimpse into how living systems engineer key ...


EU regulators softening stance on Oracle-Sun

Technology / Business

created Dec 15, 2009 | popularity 5 / 5 (1) | comments 1

(AP) -- European Union regulators appear to be softening their opposition to Oracle Corp.'s proposed $7.4 billion takeover of Sun Microsystems Inc., a shift that has resurrected some investors' hopes that one of the year's ...


Sucking Up To Survive

Sucking Up To Survive

Biology / Plants & Animals

created Dec 10, 2009 | popularity 5 / 5 (5) | comments 0

Shrink a human being down to the size of an insect, and you would no longer be able to sip lemonade from a straw. The forces that hold liquid together would simply be too great to overcome at that tiny scale.


Life after silicon

Life after silicon: Using exotic materials to help microchips keep improving

Technology / Semiconductors

created Dec 08, 2009 | popularity 4.5 / 5 (8) | comments 1

(PhysOrg.com) -- The huge increases in the power and capacity of computers, cell phones and communications networks in the last 40 years have been the result of ever-shrinking silicon transistors. But silicon ...


Merkel cells revealed as secret behind sensation of light touch

Biology / Cell & Microbiology

created Dec 08, 2009 | popularity 5 / 5 (1) | comments 0

Scientists have proved experimentally what has been suspected since the discovery of Merkel cells in the skin over a century ago: the sense of light touch that is critical for hand dexterity would not be possible without ...


Steering the Ares Rockets on a Straight Path

Steering the Ares Rockets on a Straight Path

Space & Earth / Space Exploration

created Dec 04, 2009 | popularity 5 / 5 (1) | comments 1

(PhysOrg.com) -- The Ares I-X rocket stood more than 325 feet tall on the launch pad at NASA's Kennedy Space Center, Fla. Spectators watched in awe as its massive solid rocket motor blazed to life with a thunderous ...


STPSat-1 successfully completes extended mission

STPSat-1 successfully completes extended mission

Space & Earth / Space Exploration

created Dec 02, 2009 | popularity 5 / 5 (1) | comments 0

The STPSat-1, built for the Department of Defense (DoD) Space Test Program (STP) and operated by the DoD STP for the first year then transitioned to NRL for the last 16 months, was decommissioned on October ...


Researchers create 'synthetic magnetic fields' for neutral atoms

Researchers create 'synthetic magnetic fields' for neutral atoms

Physics / Quantum Physics

created Dec 02, 2009 | popularity 4.9 / 5 (15) | comments 2

(PhysOrg.com) -- Achieving an important new capability in ultracold atomic gases, researchers at the Joint Quantum Institute, a collaboration of the National Institute of Standards and Technology and the University ...


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.


Air Force Center of Excellence awarded in nanostructures and improved cognition

Air Force Center of Excellence awarded in nanostructures and improved cognition

Nanotechnology / Nanomaterials

created Dec 01, 2009 | popularity not rated yet | comments 0

The Georgia Institute of Technology has been awarded a U.S. Air Force Center of Excellence to design nanostructures for energy harvesting and adaptive materials, and to develop tools to optimize critical cognitive ...



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