Search results for "sphere"

In the latest issue of the journalLab on a Chip, researchers from MIT’s Microsystems Technology Laboratories report a new microencapsulation technique that yields particles of very consistent size, while also affording a high rate of production.

A small drone taught itself to judge distances using only one eye during trials aboard the International Space Station, ESA-backed researchers have reported.Although humans can effortlessly estimate distances with a single eye, robots still lack this capability.“It is a mathematical impossibility to extract distances to objects from one single image, if the object has not been encountered before,” explains Guido de Croon from Delft Un...

A 25-year-old man recovering from a coma has made remarkable progress following a treatment at UCLA to jump-start his brain using ultrasound. The technique uses sonic stimulation to excite the neurons in the thalamus, an egg-shaped structure that serves as the brain's central hub for processing information."It's almost as if we were jump-starting the neurons back into function," said Martin Monti, the study's lead author and a UCLA associate prof...

Researchers have levitated a tiny nanodiamond particle with a laser in a vacuum chamber, using the technique for the first time to detect and measure its "torsional vibration," an advance that could bring new types of sensors and studies in quantum mechanics.The experiment represents a nanoscale version of the torsion balance used in the classic Cavendish experiment, performed in 1798 by British scientist Henry Cavendish, which determined Newton'...

When it comes to water, some materials have a split personality - and some of these materials could hold the key to new ways of harnessing solar energy.These small assemblies of organic molecules have parts that are hydrophobic, or water-fearing, while other parts are hydrophilic, or water-loving. Because of their schizoid nature, micelles organise themselves into spheres that have their hydrophilic parts turned out while their hydrophobic parts ...

NIST scientists have devised and modelled a unique optical method of sorting microscopic and nanoscopic particles by size, with a resolution as fine as 1 nm for particles of similar composition.A stream of particles of various sizes enters the system at a single point, but the particles exit the system at different places, depending on their size. The process does not alter the particles in any way, so that those with dimensions of interest can b...

Nanobeads are all around us - and are, some might argue, used too frequently in everything from sun-screen to white paint, but a ground-breaking application is revealing hidden worlds.A paper inScience Advancesprovides proof of a concept, using solid 3D superlenses to break through the scale of things previously visible through a microscope.

Piezoelectric transducers are made invaluable to modern high tech applications, by their fast response, high bandwidth and force, and virtually unlimited resolution. These modern high tech applications including; flow measurement, distance gauging, bio-medical dispensing and aerosol generation, as well as metrology, semiconductor testing, and aerospace technology.

An ultrafast "electron camera" at the Department of Energy's SLAC National Accelerator Laboratory has made the first direct snapshots of atomic nuclei in molecules that are vibrating within millionths of a billionth of a second after being hit by a laser pulse. The method, called ultrafast electron diffraction (UED), could help scientists better understand the role of nuclear motions in light-driven processes that naturally occur on extremely fas...

With a history of providing the aerospace and defence sector with HEMP and IEMI filters, MPE was well placed to introduce what the company claims to be the world’s first range of HEMP protection filters designed and developed specifically for the commercial marketplace - launched at the EuroEM 2016 event which ran at Imperial College, South Kensington, London SW7, from July 11th-14th. Image left shows a burnt out PCB following a HEMP attack...