RSS feed source: Centers for Disease Control and Prevention--Office of Public Health Preparedness and Response

NIST Time and Frequency Division’s annual seminar covers precision clocks and oscillators, atomic frequency standards, rf and optical synchronization, optical oscillators, quantum information, optical cooling and heating; making precise frequency

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RSS feed source: Centers for Disease Control and Prevention--Office of Public Health Preparedness and Response

As electric vehicles grow more popular, their warning sounds may not be doing enough to protect pedestrians. A Swedish study shows that these signals are hard to locate, especially when multiple vehicles are involved, leaving people unable to tell where danger is coming from or how many cars are nearby.

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