Showing posts with label Warp drive. Show all posts
Showing posts with label Warp drive. Show all posts

Tuesday, February 26, 2013

UK University of Surrey STRaND: Launch Smartphone satellite


A smartphone has been blasted into orbit from India by a team of researchers from the University of Surrey.

They hope to use a purpose-built app to test the theory, immortalised in the film Alien, that "in space no-one can hear you scream".

The phone will play out several of the screams submitted by people online.

The test will monitor the durability of standard commercial components in space.

It will also test two new innovative propulsion systems.

STRaND-1 being assembledThe first - named Warp Drive (Water Alcohol Resisto-jet Propulsion De-orbit Re-entry Velocity Experiment) - uses the ejection of a water-alcohol mixture to provide thrust.

The second technology is pulsed plasma thrusters. These use an electric current to heat and evaporate a material, producing a charged gas that can then be accelerated in one direction in a magnetic field to push the satellite in the other direction.

'Fantastic achievement'
The mission will see the so-called "smartphone-sat" - a world first - orbit the Earth for six months.

Weighing 4.3 kg (9.5lbs) and measuring 10cm by 30cm (4in by 12in), the satellite has been developed by the University of Surrey's Space Centre (SSC) and Surrey Satellite Technology (SSTL).

Strand-1 being worked on by engineers"This mission is a fantastic achievement and a great tribute to the hard work of the engineers involved," said Sir Martin Sweeting, director of SSC, and also executive chairman of SSTL.

At first, the Strand-1 satellite will be controlled by a standard onboard computer, but in phase two of the mission, a Google Nexus phone will take the reins - equipped with a number of special apps.

One of them, iTesa, is to record the magnitude of the magnetic field around the phone during orbit.

The 360 app will take pictures using the phone's built-in five megapixel camera, and will act as a method of establishing the satellite's position.

Images captured by the app will be posted on Facebook.

Tuesday, September 18, 2012

Warp Drive More Possible Than Thought, Scientists Say

A ring-shaped warp drive device could transport a football-shape starship (center) to effective speeds faster than light. 

The concept was first proposed by Mexican physicist Miguel Alcubierre.

CREDIT: Harold White

A warp drive to achieve faster-than-light travel — a concept popularized in television's Star Trek — may not be as unrealistic as once thought, scientists say.

A warp drive would manipulate space-time itself to move a starship, taking advantage of a loophole in the laws of physics that prevent anything from moving faster than light.

A concept for a real-life warp drive was suggested in 1994 by Mexican physicist Miguel Alcubierre; however, subsequent calculations found that such a device would require prohibitive amounts of energy.

Now physicists say that adjustments can be made to the proposed warp drive that would enable it to run on significantly less energy, potentially bringing the idea back from the realm of science fiction into science.

"There is hope," Harold "Sonny" White of NASA's Johnson Space Center said here Friday (Sept. 14) at the 100 Year Starship Symposium, a meeting to discuss the challenges of interstellar spaceflight.