News tagged with repulsion

Tangling the microscopic ladder

If a ladder had more than one rung at each step, it would look awkward and would be a bit dangerous to climb. Ladders in the microscopic world were thought to be similar in structure, having only one particle, ...

Dec 17, 2010
3 / 5 (1) 0

How not to blow up a molecule

High-charge-state ions in a molecule cause strong Coulomb forces, repulsive forces that try to blow its atoms apart. But the research team's crucial finding was that a way to produce only lower charge states ...

Jun 25, 2010
5 / 5 (5) 1

Impact sensor provides athletic support

As athletes strive for perfection, sports scientists need to exploit every technological advance to help them achieve that goal. Researchers in New Zealand have now developed a new type of wearable impact sensor based that ...

May 14, 2010
4 / 5 (1) 0 | with audio podcast

New project aims for fusion ignition

Russia and Italy have entered into an agreement to build a new fusion reactor outside Moscow that could become the first such reactor to achieve ignition, the point where a fusion reaction becomes self-sustaining ...

May 10, 2010
4.9 / 5 (45) 22 | with audio podcast

Repulsive interactions

(PhysOrg.com) -- The recent state of the roads is a clear illustration of what happens when water freezes into crystals of ice. But despite its frequent occurrence, the crystallisation of water is remarkably ...

Feb 05, 2010
3.8 / 5 (4) 0 | with audio podcast

Metamaterials could reduce friction in nanomachines

(PhysOrg.com) -- Nanoscale machines expected to have wide application in industry, energy, medicine and other fields may someday operate far more efficiently thanks to important theoretical discoveries concerning the manipulation ...

Dec 07, 2009
3.9 / 5 (7) 2

Magnetism observed in gas for the first time

(PhysOrg.com) -- For the first time, MIT scientists have observed ferromagnetism in an atomic gas, addressing the decades-old question of whether gases could show properties similar to a magnet made of iron or nickel. Specifically, ...

Sep 17, 2009
4.5 / 5 (14) 0