American and Israeli scientists have developed a new system of wirelessly transmitting data using
twisted beams of light that could produce a theoretical throughput of 2.5 terabits of data per second.
Physicists have been able to create
twisted beams of visible light for about 20 years, having initially noticed that such beams were being produced inside some laser cavities.
These twisted beams of light are useful in nanotechnology, as optical «tweezers» or «spanners» to manipulate tiny particles.
Meet the true masters of optics: Animals that know a lot more about slicing, dicing, and
twisting beams of light than we do
Not exact matches
I am quite sure our Christian friends will be having one heck
of a fit if a
twisted beam representing the Star
of David was put on site.
If somehow the
beams of the towers
twisted themselves into a Star
of David I would be fine with that also.
If you want the crossed
beams to be on display for no reason other than that they are an artifact, a
twisted fragment
of the building that once stood — then rest assured that there are countless other fragments to display, most
of them less divisive than this one.
SET a
beam of electrons
twisting, and the resulting vortex could be just the tool to manipulate atoms.
The
beams split, bend,
twist, bounce and amplify as they travel 1,500 meters through the facility, modulated through 60,000 control points in five - millionths
of a second.
The research team from the Centre for Photonics and Photonic Materials, and the Centre for Nanoscience and Nanotechnology at the University
of Bath, used a special white - light laser built in - house and directed it through several optical components to put a
twist on the
beam.
Optical physicists have been using spiraling laser
beams, in which light waves are
twisted into vortices, for almost 30 years, says Jo Verbeeck, a materials scientist at the University
of Antwerp in Belgium and first author on the Nature paper.
Earlier this year, Masaya Uchida and Akira Tonomura at the Advanced Science Institute in Wako, part
of Japan's network
of research labs known as RIKEN, showed that electron
beams can be
twisted.
They passed each
beam — which carried its own independent stream
of data — through a «spiral phase plate» that
twisted each radio
beam into a unique and orthogonal DNA - like helical shape.
What is needed is a special instrument called a holographic detector, he notes, which would distort the phase structure
of an incoming light
beam to weed out light without the proper
twist.
«Light doesn't typically like to be squeezed or manipulated but this metamaterial permits you to manipulate light from one chip to another, to squeeze, bend,
twist and reduce diameter
of a
beam from the macroscale to the nanoscale,» said Mazur.
If you want to unravel the secrets
of proton spin, put a «
twist» in your colliding proton
beams.
That is the claim being made by a group
of scientists in Italy and Sweden, who have shown how a radio
beam can be
twisted, and the resulting vortex detected with distant antennas.
But if a
beam is
twisted, then the wavefront rotates around the
beam's direction
of propagation in a spiral, creating a vortex and leaving the
beam with zero intensity at its centre.
But he cautions that atmospheric turbulence, which causes fluctuations in the amplitude and phase
of a signal, would probably limit the extent to which
beams could be
twisted and therefore restrict the number
of available channels.
This film's plot
twists and turns like Zeta - Jones's body does as we watch her manipulate through a maze
of red wool constructed to simulate the laser
beam security system she will have to navigate in their big heist.
Entry - level cars get a
twist beam suspension set - up at the rear, but higher - spec models like our A250 use a development
of the outgoing version's multi-link arrangement.
Ford has made the decision to offer smaller - engined models with a
twist -
beam rear suspension system (or a torsion bar to you and I), but will maintain independent rear suspension on the rest
of the range.
To enhance that coveted go - kart handling, the engineers have increased torsional stiffness, improved weight distribution, lowered the center
of gravity, and retuned the suspension (which again combines damper struts and a
twist beam).
Using front struts and a rear
twist beam the setup manages to deliver a comfortable ride and agile handling — through my favourite set
of sweeping curves the Fit displayed minimal body roll and understeer only surfaced when liberties were taken.
Ride quality, meanwhile, is downright heroic thanks to a fully independent rear suspension (the NV200 / City Express have bumpy rear leaf springs and the Transit Connect has a
twist beam rear axle), so if youre in the business
of transporting delicate items like wedding cakes or antiques, this should top your shopping list.
The fully - independent rear suspension
of the first - generation Indica, which caused a lot
of wheel geometry issues, has been replaced by a more conventional non-independent,
twist beam axle seen in most hatchbacks today.
Due to the separation
of functions, the multilink rear suspension allows for a targeted design
of chassis - specific characteristics and thus clearly stands out from the
twist -
beam rear axle.
Underneath, the front independent suspension system and the rear
twist -
beam axle do an excellent job
of ironing out most bumps.
It comprises
of an independent McPherson strut on front axle and a semi independent
twist beam on the rear one.
Its front axle is fitted with dual - path independent McPherson strut accompanied by anti roll bar, while the rear axle is fitted with
Twist beam type
of suspension.
The rear is assembled with semi independent
twist beam type
of mechanism.
Ford India has issued a voluntary recall for 16,444 units
of the EcoSport due to a faulty rear
twist beam.
The trailing arms and interconnecting
twist beam are made
of steel.
The Insight's rear suspension consists
of twin trailing arms interconnected by a curved, flattened
beam (called a
twist beam) midway along their length.
The rear end still utilizes a
twist beam, now with a roll stiffness
of 1,400 Nm / deg (about 1,030 lb - ft / deg), which is the firmest
of any Ford Performance model, the automaker says.
The
Twist - beam rear suspension is a similar suspension design, however its beam axle is able to twist thereby functioning as an anti-roll bar to control the roll motion of the body and is considered to be a semi-independent suspension de
Twist -
beam rear suspension is a similar suspension design, however its
beam axle is able to
twist thereby functioning as an anti-roll bar to control the roll motion of the body and is considered to be a semi-independent suspension de
twist thereby functioning as an anti-roll bar to control the roll motion
of the body and is considered to be a semi-independent suspension design.
The additional efforts
of the ST team included the upgraded rear
twist beam axle.
In fact, it's quite a rudimentary piece
of equipment, relying upon the torsional (
twisting) rigidity
of a
beam to achieve approximately the same effect as a coil spring.
Enhanced using the same Ford - patented force vectoring spring technology that supports the responsive, engaging and fun - to - drive experience
of the all - new Fiesta ST, the
twist -
beam configuration is designed to complement the lighter 1.0 - liter EcoBoost and 1.5 - liter EcoBlue powertrains.
And as we've already noted, the tune
of the MacPherson struts up - front and
twist beam at the rear makes this car more than amenable to being chucked around.
Pair that with its independent rear suspension, which replaces a
twist beam axle and stow - n - go bins that are now part
of the structure for rigidity and this people hauler is actually rather nimble.
Finally, the GLI gives back some
of what was lost — or what we never got — in recent «performance» versions, with a limited - slip differential and a multilink independent rear suspension rather than the
twist -
beam axle.
The rear running gear consists
of a semi-independent
twist -
beam suspension with an integrated anti-roll bar.
A few years ago, I saw my first photos
of Antelope Canyon, with its glowing, red canyon walls,
twisted, scalloped rock faces, and
beams of light shining through the dusty air.
Moira possesses abilities akin to those
of other characters with new
twists, combining the dark essence
of Reaper, the shotgun - wielding renegade, and the biologically - based
beam of Symmetra.
Cunningham's sculptural process is a form
of «urban mining,» transforming found materials such as exposed structural fragments, and
twisted steel
beams with layered significance and aesthetic function.
The highly polished surfaces
of the
twist sculptures create fleeting, fluid reflections that dissipate or disrupt any stable imagery, denying viewers the certainty
of either the form's pre-twisted state — which may also be symbolic, scientific or spiritual in origin — or their own, familiar and fixed likeness
beaming back at them.
A mixture
of modern and country in this kitchen, such as the white walls and wooden
beams, create a fresh
twist on a traditional look.
The designer envisioned a chic ski lodge because
of the vaulted tongue - and - groove ceiling and exposed
beams, and she found inspiration for her edgy
twist on a woodsy retreat from an article about designer and architect Isamu Noguchi.