Scientists Develop Tractor Beam (On A Microscopic Scale)

A research team in Scotland and the Czech Republic has developed a tractor beam.

A press release from St. Andrews University reveals that scientists at that university and at the Institute of Scientific Instruments in the Czech Republic have for the first time been able to use light to draw objects closer, although only on a microscopic scale.

It has long been known that photons create a small amount of pressure. Johanes Kepler described the effect way back in the 17th century when he observed that the tails of comets point away from the sun. Experiments using light to push microscopic objects have been conducted for decades, but the current research is the first time light has been used to attract objects.

The team discovered that under a certain set of parameters with a special optical field, the pushing effect turns into a negative force and the object is drawn closer.

The negative force is specific to the object’s size and composition, allowing scientists to pick and choose what objects to attract. This would have applications to medicine and biological research, enabling researchers to sort cells or even parts of a cell. The team’s results have been published in Nature Photonics.

A real science-fiction-style tractor beam would have to be on a vastly greater scale than these experiments, however, so don’t expect it to be used for transportation anytime soon. We’ll see space tourism long before that. The tractor beam experiments are a bit like teleportation experiments that made headlines a year ago. We’re seeing what our grandkids might one day take for granted.

[Image courtesy St Andrews University]

D*Haus’ dynamic new house transforms shape with the weather

When it gets stormy outside, I usually just close my windows. But with the new innovative design concept by D*Haus, homes may soon by able to simply morph when the weather changes.

The London-based company has come up with a eco-friendly house that sits on rails, allowing it to change its form into different configurations, pivoting open and closed, based on the weather. According to Daniel Woolfson of D*Haus, “The dissection of the square into four distinct shapes allows it to be rearranged to form the [equilateral] triangle. This concept alone is fascinating, but the possibilities are endless when applying this formula to the world of architecture and design.”

When developing the home, designers had the regions of Sweden and Lapland in mind, hoping to create something that would respond to the harsh climates of these areas. For example, when it’s chilly out and you need to conserve heat the house can pull itself into a tight square.

There is still some work to do before the house is perfect, as you can probably imagine there are a lot of technical issues that go into a project like this. To get a better idea of how this shape-shifting house works, check out this video:


D*Haus Dynamic from The D*Haus Company Ltd on Vimeo.