Quartz
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Tibet quartz discovery boosts China’s self-sufficiency push for hi-tech materials
China has discovered a new source of high-purity quartz in its western Tibet autonomous region, potentially reducing its reliance on imports of the critical material to make solar panels and semiconductors. High-purity quartz is a gold standard manufacturing material for numerous hi-tech items, including some whose global market is dominated by China. China has relied on imports to obtain the important material, with most coming from the United States, because of a lack of domestic sources...
Unified Theory of Quartz Tuning Fork Resonators
arXiv:2606.00681v1 Announce Type: new Abstract: Quartz tuning forks, functioning as electrically driven piezoelectric resonators, have long served as exceptionally stable and widely adopted timing references in diverse domains of research and industry. Yet, electrically measured resonance spectra often exhibit robust features that remain unexplained within existing theoretical descriptions. Here we develop a unified continuum electroelastic framework that combines piezoelectric...
Profiling a Rydberg-Atom Electric Field Sensor for Off-Resonant Detection of Sub-100 MHz RF Signals
arXiv:2606.10151v1 Announce Type: new Abstract: We present a Rydberg-Atom electric field sensor optimized to detect signals at sub-100 MHz carrier frequencies. The sensing setup employs a sapphire vapor cell that allows for detection of signals below 100~MHz -- typical vapor cells made of glass or quartz demonstrate strong screening of radio frequency (RF) signals in this frequency regime. Applied signals are detected by observing AC Stark shifts in the atomic vapor energy levels.
Ancient altercations between musk turtles and alligator gar recorded in Florida's fossil record
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'Out-of-place' rocks reveal how a young ocean formed
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The intracies of modern camera lens repair (2024)
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Life and death in the outback: Why Australians are still dying in the bush
Life and death in the outback: Why Australians are still dying in the bush Sun 31 May 2026 at 6:20am It's the road trip Kelly Townsend has been dreading. Driving into the desert to try to find the place her son and ex-husband died. "I'm feeling a bit anxious and overwhelmed," she says.
Development of flash lithium evaporators for NSTX-U
arXiv:2606.00777v1 Announce Type: new Abstract: We present results of in-vacuo refill and operation of a lithium evaporator in LTX-$\beta$ as the culmination of a larger design basis for a flash lithium evaporator (f-LITER) for wall conditioning in the National Spherical Torus Experiment Upgrade (NSTX-U). The new f-LITER is intended to deliver fresh lithium to plasma-facing components (PFCs) in both the upper and lower-divertor as well as the center-column and outboard regions for...