METAL DETECTION SYSTEM FOR CHEESES. ProScan metal detectors from Advanced Detection Systems are ideal for cheese and other ...

Metal detectors will be installed at all high schools around the district, beginning with Melbourne High School.

The district to buy more OpenGate detectors, which are better at detecting metal than the current walk-through metal ...

Orange County Public Schools tested a walk-through weapons detection system last school year but decided against installing ...

Allentown School District wants to add its weapon detection systems, which are used at all three of its high schools, to its ...

Last Friday, Aug. 16, a Shaker student was taken into custody for having a gun before the football game against Euclid High ...

News 2 reached out to several Middle Tennessee school district about the role that metal detectors play in their school ...

An online petition demanding security changes at Harford County Public Schools has quickly brought in thousands of signatures ...

In addition to some 600 police officers and 2000 security staff, more than 50 cameras will be installed across the grounds of ...

Officials with the Revere public school district held a community meeting Tuesday night, working with parents to explore potential solutions for increasing safety in schools.

引力波探测器使用数公里长的干涉仪来测量时空的微小膨胀和收缩。由于量子力学的原因，这些测量的精度是有限的。理论上，利用光的压缩态可以超越量子极限，而合适的滤光腔可以在更宽的频率范围内扩展这一优势。