Search results for "satellites"

For the first time, researchers have sent a quantum-secured message containing more than one bit of information per photon through the air above a city. The demonstration showed that it could one day be practical to use high-capacity, free-space quantum communication to create a highly secure link between ground-based networks and satellites, a requirement for creating a global quantum encryption network.

In our hunt for Earth-like planets and extraterrestrial life, we’ve found thousands of exoplanets orbiting stars other than our sun. The caveat is that most of these planets have been detected using indirect methods. Similar to how a person can’t look at anything too close to the sun, current telescopes can’t observe potential Earth-like planets because they are too close to the stars they orbit, which are about 10 billion times...

The company that enables off-grid, long range mobile communications on regular smartphones regardless of cell service, WiFi, satellites, or base stations, goTenna is exhibiting its third product, thegoTenna Proat DSEI as the company prepares for imminent shipping to end-customers in Q4 2017.

The time has finally come that some pro-cyclists have turned to precision hybrid ceramic bearings for their low rolling resistance to give them a race day advantage over those who opt for all-steel bearings.Chris Johnson, Managing Director of specialist bearing supplier, SMB Bearings, explains this choice and explores the differences between full ceramic and hybrid bearings.

First Sensor Lewicki, part of the sensor specialist First Sensor, will be involved in the construction of one of the antennas for the German communication satellite Heinrich Hertz.A contract was signed on June 28th, 2017 by the DLR (German Aerospace Center), the contracting authority, and OHB System AG, thegeneral contractor, for the construction, testing and launch of the satellite. The multi-feed array antenna is related to the mission objectiv...

It was midafternoon, but it was dark in an area in Boulder, Colorado on Aug. 3, 1998. A thick cloud appeared overhead and dimmed the land below for more than 30 minutes. Well-calibrated radiometers showed that there were very low levels of light reaching the ground, sufficiently low that researchers decided to simulate this interesting event with computer models. Now in 2017, inspired by the event in Boulder, NASA scientists will explore the moon...

Instant and accurate man overboard location is just one of many features that SCADA technology is offering to transform the safety and comfort of pleasure sailing. Products4Automation’s SCADA expert Paul Hurst casts an over of the technology transfer from industrial process plant to luxury yacht.

An experimental project has been launched by UK scientists at the Defence Science and Technology Laboratory (Dstl) to tackle the growing problem of space junk.Hundreds of thousands of man-made objects orbit the Earth, but fewer than 5,000 are operational satellites. The most congested area sits within 2,000km of the Earth’s surface, known as low Earth orbit (LEO), where collisions can cause further debris.

Since it was first observed little more than a thousand years ago, the Crab Nebula has been studied by generations of astronomers. Yet new observations by researchers at KTH show this “cosmic lighthouse” has yet to give up all of its secrets.The researchers' observations of polarised X-rays from the Crab Nebula and Pulsar, published in Scientific Reports, may help explain sudden flares in the Crab’s X-ray intensity, as well as p...

University of Michigan researchers have developed a concept for ferrofluid-based propulsion.As the trend for miniaturisation of electronic technology continues, more spacecraft and satellites are becoming smaller, with typical sizes reducing from about that of a fridge or small car to approaching a shoebox or even a smartphone.