Eurekalert November 26, 2018 Researchers in China monitored the icing process (at 10 meters and 1.5 meters) of agglomerate fog, an event where massive amounts of fog come together during a cold surge which lasted for 102 hours. They found that agglomerate fogs, snow and rain, contributed to the icing process. They observed significant differences in the thickness and density of the accumulated ice, as well as the mechanism that contributed to icing growth and the duration of the icing at the two different heights. The sticking efficiency of snow particles has a significant impact on icing growth rate…read more. […]
Tag Archives: S&T China
How to Encode a Secret Message in a Fingerprint
IEEE Spectrum November 2, 2018 Researchers in China have developed a sophisticated way to construct digital fingerprints that encode secret messages into the continuous lines that occasionally swirl into spiral points. The technique involves mapping the message to a polynomial and encode it into a set of points with different polarities, from which the spiral phase is computed and constructed. The continuous phase is constructed by decomposing a fingerprint image synthetically generated. The spiral phase and the continuous phase are combined to form the hologram phase to form a common from. They have demonstrated that the encoded message can be […]
Chinese New Mini Robot Carries Micro Intelligent Missiles
Defense Update November 6, 2018 A new robotic vehicle displayed at ‘Airshow China’ is equipped with a ‘micro-intelligent missile’. The tube-launched weapon weighs only one kilogram but is equipped with energetic rocket propulsion powerful enough to carry it on a flight up to 2,000 meters and a warhead, designed to defeat light armor. The missile that measures 40mm in diameter and 500mm in length looks similar in size and shape to Raytheon’s Pike missile designed that is also launched from 40mm grenade launchers. The weapon uses electro-optical guidance to deliver an accuracy of 0.5 meters with a lethality radius of […]
New moon: China to launch lunar lighting in outer space
Phys.org October 19, 2018 Researchers in China are developing “illumination satellites” which will shine in tandem with the real moon but are eight times brighter. By reflecting light from the sun, the satellites could replace streetlamps in urban areas. If the first test goes well three more to follow in 2022. The extraterrestrial source of light could also help rescue efforts in disaster zones during blackouts. In the 1990s, Russian scientists reportedly used giant mirrors to reflect light from space in an experimental project called Znamya or Banner… read more.
Large family of quantum spin liquids revealed
Physics World October 18, 2018 Researchers in China synthesized and characterized a large family of rare-earth chalcogenides AReCh 2 (A = alkali or monovalent ions, Re = rare earth, Ch = O, S, Se) which share the same structure (Rbar 3m) as YbMgGaO 4 , and antiferromagnetically coupled rare-earth ions form perfect triangular layers that are well separated along the c-axis. The family, having the simplest structure and chemical formula among the known QSL candidates, removes the issue on possible exchange disorders in YbMgGaO 4 . The rich diversity of the family members allows tunable charge gaps, variable exchange coupling, […]
Measurement-device-independent quantum communication without encryption
Phys.org October 11, 2018 The key problem of practical quantum secure direct communication (QSDC) is that apparatuses used in practical quantum communication systems have some defects, and these imperfections, especially defects in the measurement devices, can lead to leakage of information and affect the security of practical QSDC. Researchers in China proposed a measurement-and-device-independent quantum secure direct communication protocol using Einstein-Podolsky-Rosen pairs. This protocol eliminates all loopholes related to measurement devices, which solves a key obstacle in practical quantum secure direct communication. The protocol has also an extended communication distance, and a high communication capacity…read more. TECHNICAL ARTICLE
Geoengineering will happen, China controlling rain across Tibet
Next Big Future October 14, 2018 China and 23 other countries already engage in significant weather modification. China is setting up or has already set up a level of rain control across Tibet and other parts of China. Tens of thousands of fuel-burning chambers will be installed across the Tibetan mountains, with a view to boosting rainfall in the region by up to 10 billion tons of rain annually. In 2013, China was already producing 55 billion tons per year of artificially induced rain. China is expanding this to over 250 billion tons per year…read more.
Possible game changer in detection of submarines
Next Big Future October 9, 2018 Researchers in China are working on a device they hope will be able to reveal the location of a target as far as 500 metres below the ocean surface monitoring tiny disturbances in the Earth’s magnetic field caused by metallic objects such as submarines. They are also working on sensors using cutting-edge quantum technology to chase the gravitational abnormality that a submarine creates in a large body of water. Powerful listening devices have also been planted in strategic seabed near the American naval base in Guam and in the South China Sea, some of […]
China applying naval electromagnetic catapult launch for land based missiles
Next Big Future August 30, 2018 Conventional rockets rely on chemical explosives or fuel, but the new rockets will be launched using additional electromagnetic force. The report suggested that the new electromagnetic rockets could be deployed in Tibet. With possibly hundreds of kilometres range, from there they would be able to strike the heartland of India. China has widely deployed 300mm PHL-03 rockets, modified from the Soviet BM-30. Those have a flight range of around 150km (about 93 miles) … read more.
China is still 10-20 years from matching US economy and 20-40 years from matching US military
Next Big Future August 23, 2018 According to The Pentagon’s annual report to Congress on China’s military and security developments even if China’s nominal GDP matches the US around 2030, China will still need longer to match the US military. China is building up regional advantages where it could win conflicts over Taiwan or the South China Sea, nuclear missiles are not prepped for launch, the overall number of Chinese ICBM launchers reported by DOD has remained stable since 2011: 50-75, China intends to use the Belt and Road Initiative (BRI) to develop strong economic ties with other countries, modernization […]