The processor's peak frequency reaches up to 1.9 GHz. (myfixguide.com)
This might be done by integrating different materials that absorb the peak frequencies. (sciencedaily.com)
The peak frequencies of Dutch chimps» calls dropped dramatically from 932 to 708 hertz between 2010 and 2013, matching closely the calls of the Scottish group, which altered slightly from 657 to 597 hertz over the same period. (newscientist.com)