Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > News > Pressure exerted by sunbeams harnessed for energy: Green Futures: Innovative design draws on the pressure light exerts as a driving force

June 22nd, 2011

Pressure exerted by sunbeams harnessed for energy: Green Futures: Innovative design draws on the pressure light exerts as a driving force

Abstract:
Now a team of researchers at the Rochester Institute of Technology in New York has demonstrated another trick light can do. Take a transparent rod, semicircular in cross-section and thinner than a human hair, and direct a beam at it. As the stream of photons flows through it, the pressure they exert first rotates it until it finds equilibrium and then pushes it, not in the direction of the stream but at a particular angle to it. It's not unlike the way the flow of air round an aerofoil creates 'lift'.

Tiny as this effect is, such a 'lightfoil' could have applications not only in the near-vacuum of space but even on Earth. "The advantage of these rods", explains Ortwin Hess, Professor in Physics and Leverhulme Chair in Metamaterials at Imperial College London, "is that you can use a lot of them together." And on the nano scale, he adds, even very small effects can have a gigantic impact.

So what is it good for? The pressure light exerts is minuscule, and so there are only two contexts in which it can be harnessed: in space, where there is a near-total vacuum and therefore almost no resistance to the force it applies; and in nanotechnology, where the things that need moving have a very small mass.

Source:
guardian.co.uk

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Study reveals how herpes virus tricks the immune system February 5th, 2016

Hepatitis virus-like particles as potential cancer treatment February 5th, 2016

Organic crystals allow creating flexible electronic devices: The researchers from the Faculty of Physics of the Moscow State University have grown organic crystals that allow creating flexible electronic devices February 5th, 2016

Researchers discover new phase of boron nitride and a new way to create pure c-BN February 5th, 2016

Molecular Machines

'Spermbots' could help women trying to conceive (video) January 15th, 2016

Scientists blueprint tiny cellular 'nanomachine' December 17th, 2015

Nano-walkers take speedy leap forward with first rolling DNA-based motor: Fastest DNA motor holds potential for disease diagnostics December 1st, 2015

Rice makes light-driven nanosubmarines: Speedy single-molecule submersibles are a first November 16th, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Study reveals how herpes virus tricks the immune system February 5th, 2016

Hepatitis virus-like particles as potential cancer treatment February 5th, 2016

Organic crystals allow creating flexible electronic devices: The researchers from the Faculty of Physics of the Moscow State University have grown organic crystals that allow creating flexible electronic devices February 5th, 2016

Researchers discover new phase of boron nitride and a new way to create pure c-BN February 5th, 2016

Energy

February 4th, 2016

Putting silicon 'sawdust' in a graphene cage boosts battery performance: Approach could remove major obstacles to increasing the capacity of lithium-ion batteries January 30th, 2016

Simplifying solar cells with a new mix of materials: Berkeley Lab-led research team creates a high-efficiency device in 7 steps January 29th, 2016

Scientists provide new guideline for synthesis of fullerene electron acceptors January 28th, 2016

Aerospace/Space

Researchers develop completely new kind of polymer: Hybrid polymers could lead to new concepts in self-repairing materials, drug delivery and artificial muscles January 30th, 2016

Scientists build a neural network using plastic memristors: A group of Russian and Italian scientists have created a neural network based on polymeric memristors -- devices that can potentially be used to build fundamentally new computers January 28th, 2016

Deep Space Industries teams with UTIAS Space Flight Laboratory to demonstrate autonomous spacecraft maneuvering: SFL and DSI demonstrate enabling technology for low-cost asteroid missions and constellations January 25th, 2016

Graphene composite may keep wings ice-free: Rice University develops conductive material to heat surfaces, simplify ice removal January 25th, 2016

Photonics/Optics/Lasers

Organic crystals allow creating flexible electronic devices: The researchers from the Faculty of Physics of the Moscow State University have grown organic crystals that allow creating flexible electronic devices February 5th, 2016

Scientists guide gold nanoparticles to form 'diamond' superlattices: DNA scaffolds cage and coax nanoparticles into position to form crystalline arrangements that mimic the atomic structure of diamond February 4th, 2016

Nature Materials: Smallest lattice structure worldwide: 3-D lattice with glassy carbon struts and braces of less than 200 nm in diameter has higher specific strength than most solids February 3rd, 2016

Silicon-based metamaterials could bring photonic circuits February 1st, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic