Since the end of November, the San Diego Air Pollution Control District has measured hydrogen sulfide levels above the California safety threshold in the Nestor area more than 15 times.

Get inspired by a weekly roundup on living well, made simple. Sign up for CNN’s Life, But Better newsletter for information and tools designed to improve your well-being. Over-the-counter ...

深圳市吉安达科技有限公司是专业经营易燃、易爆及有毒气体检测报警安全设备；ACDC设备；工业电源设备的高科技公司。吉安达集研发、制造于一体，致力于为客户提供专业的、*的服务。 吉安达开发的产品全部拥有自主知识产权。投放市场的全系列产品均已 ...

The team's tests showed that their proof-of-concept photodiode outperformed not only existing germanium photodiodes but also commercial indium gallium arsenide photodiodes in responsivity.

RELATED | Carlsen vs Niemann: All you need to know about the ‘cheating’ saga in chess In an Instagram post, Dubov proposed a lie detector test for Niemann. “I’m ready to play, under the following ...

School of Optoelectronic Engineering, Changchun University of Science and Technology (CUST), Changchun 130013, PR China ...

Is having a radar detector or jammer in your car against the law in Australia? In fact, are radar detectors illegal in Australia, even if they’re not in your car? Here’s the bottom line: It’s illegal ...

Though easy to use, some metal detectors are made to be easy enough for a child to use, while comparing hobby-grade gear can feel confusing and overwhelming. Stan Ross started metal detecting in 1971.