A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

Through further evolution and structural optimization, the “extended multibarrel common rail enhanced railgun” with flexible structural form greatly improved barrel number and comprehensive ...

A volunteer member of staff was seriously injured after being hit by a train wagon, the Rail Accident Investigation Branch ...

Gov. Jared Polis and Union Pacific Railroad President Beth Whited signed a 25-year lease agreement for passenger rail access ...

A long-delayed project promising nonstop rail service between San Francisco and Los Angeles in under three hours may be able ...

Malaysia is calling for a common protocol for the movement of goods in transit to speed up the ASEAN rail connectivity.

A person has been hit by a train wagon in Somerset. The person, who was a volunteer member of staff, was seriously injured ...

At 7am, the Mildmay line was facing part suspension between Willesden Junction and Clapham Junction, while Network Rail fix a ...

A long-delayed project promising nonstop rail service between San Francisco ... vision of building a pioneering system — already common in Europe and Asia — that spurs economic growth, curbs ...

Japan is a thrifter’s dream. At places like Book Off or Second Street, you’ll find cheap sweaters next to shelves of Louis ...

Lasting world peace remains one of humanity's greatest aspirations. For Xi, peace and development are inseparable. He once ...