A Chinese research team claims to have developed a new device called ‘Golden Veil’ that can disguise cruise missiles as commercial aircraft.
Category: materials – Page 112
Team develops transistors with sliding ferroelectricity based on polarity-switchable molybdenum disulfide
Over the past few years, engineers have been trying to devise alternative hardware designs that would allow a single device to both perform computations and store data. These emerging electronics, known as computing-in-memory devices, could have numerous advantages, including faster speeds and enhanced data analysis capabilities.
To store data safely and retain a low power consumption, these devices should be based on ferroelectric materials with advantageous properties and that can be scaled down in terms of thickness. Two-dimensional (2D) semiconductors that exhibit a property known as sliding ferroelectricity have been found to be promising candidates for realizing computing-in-memory, yet attaining the necessary switchable electric polarization in these materials can prove difficult.
Researchers at National Taiwan Normal University, Taiwan Semiconductor Research Institute, National Yang Ming Chiao Tung University and National Cheng Kung University recently devised an effective strategy to achieve a switchable electric polarization in molybdenum disulfide (MoS2). Using this method, outlined in a Nature Electronics paper, they ultimately developed new promising ferroelectric transistors for computing-in-memory applications.
Detecting FTL travel with LIGO
TL;DR: a warp trip will show up on a gravitational detector because the space ship’s mass instantly disappears and later re-appears somewhere else.
There is some interesting foundational research [ALC] into faster than light [FTL] travel, but by everything these theories tell us, the ingredients for such modes of transportation aren’t available in the universe. FTL should be possible because the universe expands [EXP] at speeds greater than that of light, as [EXP] eloquently states: “galaxies that are farther than the Hubble radius, approximately 4.5 gigaparsecs or 14.7 billion light-years, away from us have a recession speed that is faster than the speed of light”
Since it is unclear whether the material needed for an FTL drive will ever be available, funding research in that direction could be a waste of resources, unless synergies emerge. In the spirit of respecting taxpayer’s money, I think FTL research should try to exploit – and generate – synergies with other fields of research.
Made-to-Order Diagnostic Tests may be on the Horizon
McGill University researchers have made a breakthrough in diagnostic technology, inventing a ‘lab on a chip’ that can be 3D-printed in just 30 minutes. The chip has the potential to make on-the-spot testing widely accessible.
As part of a recent study, the results of which were published in the journal Advanced Materials, the McGill team developed capillaric chips that act as miniature laboratories.
Unlike other computer microprocessors, these chips are single-use and require no external power source — a simple paper strip suffices.
Ryugu Samples illuminate Terrestrial Weathering Effects on Primitive Meteorites
A groundbreaking study conducted by a team of international scientists has unveiled unprecedented insights into the nature of the asteroid Ryugu and shed light on the composition of water-and carbon-rich small bodies in the solar system.
Asteroids like Ryugu are remnants of planetary embryos that never reached larger sizes, making them invaluable windows into materials that formed in the early solar system.
The study centered on laboratory measurements of the samples brought back to the Earth by the Hayabusa2 spacecraft in 2020.
Inside Tesla’s Revolutionary Cybertruck Manufacturing Process: A Game-Changer in Work Truck Technology
Tesla’s Cybertruck manufacturing process is groundbreaking and involves high precision laser cutting and stamping of stainless steel, setting a new benchmark for work trucks and impressing industry experts like Sandy Munro.
Questions to inspire discussion.
What materials are used in the Cybertruck manufacturing process?
—The Cybertruck manufacturing process involves high precision laser cutting and stamping of stainless steel without a coating, as well as the use of aluminum bronze to stamp hot blanks.
Chinese Experiments Show Near Room Temperature Superconducting Evidence for LK99
South China University of Technology and Central South University published a paper confirming the discovery of a near-room-temperature superconducting component in LK99-type materials through sample testing. This is significant experimental support for LK99 room temperature superconductivity.
They have found significant hysteresis and memory effect of LFMA in samples of CSLA. The effect is sufficiently robust in magnetic field sweep and rotation and will lose memory in a long duration. The temperature dependence of LFMA intensity exhibits a phase transition at 250 K. The phase diagram of superconducting Meissner and vortex glass is then calculated in the framework of lattice gauge model. In the near future, they will continue to improve the quality of samples to realize full levitation and magnetic flux pinning by increasing active components. The application of a microwave power repository will be considered as well.
Most superconductors have got the low-field microwave absorption (LFMA) due to the presence of superconducting gap and the relevant superconducting vortices as excited states. More importantly, the derivative LFMA of superconductors is positively dependent of the magnetic field as the vortices are more induced under higher field. As a comparison, although the soft magnetism is also active under low field, the precession of spin moments will be suppressed so that the derivative LFMA of magnetic materials is normally negative. The sign of LFMA can be always corrected by the signal of radicals in our measurements. In this case, the signals below 500 Gauss are all positive, implying the presence of superconductivity.