I brought my two favorite RC planes out to the field for some spring flying and a sound test. One is a sleek jet and the ...

On its 12th test flight, the Boom XB-1 prototype broke the sound barrier three times and achieved a top speed of Mach 1.1. On its 12th test flight, the Boom XB-1 prototype broke the sound barrier ...

Editor's note: Boom Supersonic successfully broke the sound barrier with the XB-1 today in a major milestone. Read our coverage here. Boom Supersonic plans to break the sound barrier during a test ...

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When specifying cooling equipment, engineers are faced with myriad decisions affecting performance and layout. One critical consideration is the noise emitted. As population density rises in major ...

FEMA is working with the FCC to send out a nationwide test of the emergency alert system. The test was held on Wednesday, October 4 at about 2:20 p.m. EST, alerting phones, TVs and radios. Cell phones ...

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A supersonic jet built by Boom Technology broke the sound barrier for the first time on Tuesday, advancing its bid to resurrect high-speed passenger flights two decades after the Concorde’s demise.