Feeds

Canadian scientists build nano-propeller

Really small aircraft sought

  • alert
  • submit to reddit

Top three mobile application threats

Canadian researchers have built a tiny, working propeller out of gold and nickel nano-rods. It is not the first time a nanoscale rotor has been made, but previous efforts have involved a biological process, which this one does not.

The device is kept in solution, anchored to a silicon wafer. It spins when hydrogen peroxide is added to the solution. The H2O2 reacts with the nickel tips of the propeller. This causes bubbles to form, spinning the tiny blades at an almost constant speed.

Professor Geoffrey Ozin and colleagues at the University of Toronto discovered the behaviour by accident, according to the BBC. "Rotational motion is at the heart of many conventional machines, such as rotary engines, screws and clocks," Professor Ozin says. "However, these machines clearly need more than just a rotor."

The researchers don't quite have the tiny propeller under control yet: it can spin in either direction, and the researchers have spotted a variety of different kinds of motion. Critics argue that this means that it can't be considered a true nano-machine. ®

Related stories

Hydrogen Solar nabs $400k R&D grant
Group voices concerns over synthetic technology
Stinky socks get nanotech makeover

3 Big data security analytics techniques

More from The Register

next story
Fancy joining Reg hack on quid-a-day challenge?
Recruiting now for charity starvation diet
Red-faced LOHAN team 'fesses up in blown SPEARS fuse fiasco
Standing in the corner, big pointy 'D' hats
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
KILLER ROBOTS, DNA TAMPERING and PEEPING CYBORGS: the future looks bright!
Americans optimistic about technology despite being afraid of EVERYTHING
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.