Optical technologies can finagle light in the shorter - wavelength visible and infrared range, while electromagnetic
techniques can manipulate longer - wavelength radiation
like microwaves and
radio waves.
«Because of the Earth's ionosphere, such a low frequency has proven very difficult for high - quality imaging, and it is only in the past few years that we have developed the
techniques that make a project
like the VLSS possible,» said Rick Perley, of the National
Radio Astronomy Observatory (NRAO) in Socorro, NM.
It is not surprising that there are many skeptics who
like I am, are very knowledgeable in many of the over lapping fields, of gas chromatography, anthropology,
radio graphics of X-ray and particle physics, biological plant and animal processes, agriculture, high power
radio transmission and reception, and its attendant multiplexing of signals, mining, reforestation plans and progress realities, nuclear, gas, and coal power plant construction
techniques, organic gardening, astronomy, stellar physics, global circulation pattern drivers, and have also spent considerable time out doors in a tent and sleeping bag.