In addition to SMRs, other brain
waves at different frequencies characterize certain mental states [see illustration on page 81].
Similar to how optical telescopes, X-ray telescopes and radio telescopes all look at different bands of the electromagnetic spectrum and teach us different things about the cosmos, the detection of gravitational
waves at different frequency bands also requires different detectors.
Not exact matches
Earthquake shaking is caused by a mixture of seismic
waves moving through the ground
at different frequencies.
Scientists measuring brain activity have found that in many regions, such as the sensory or motor cortex, activity sometimes oscillates
at different frequencies, forming
wave - like patterns.
Eilon looked
at the way
different frequencies of seismic
waves attenuated
at different rates.
Your brain transmits information about your current location and memories of past locations over the same neural pathways using
different frequencies of a rhythmic electrical activity called gamma
waves, report neuroscientists
at The University of Texas
at Austin.
Two radio transmitters inside operated
at different short -
wave radio
frequencies.
It's called optical SETI, and its instruments are focused on a
different band of the light spectrum than radio astronomy, looking instead
at the same
waves our eyes take in, along with infrared
frequencies, which are just a smidge longer.
Yet another group looked not
at average temperature patterns but the change in the
frequency of heat
waves and saw a
different kind of rise.