The mainstream types of chipless tags are digitally encoded and work at more than one millimetre range, like silicon chips. Their potential markets go beyond the lowest cost-highest volume potential markets because they have other attributes beyond cost.
or red shift. noun, Astronomy. 1. a shift toward longer wavelengths of the spectral lines emitted by a celestial object that is caused by the object moving away from the earth. Compare cosmological redshift, Doppler effect, gravitational redshift. Origin of redshift.
Most quasars have a very high redshift (the measurement of the stretching of light to the red end of the spectrum by the expansion of the universe). The implication of the large redshift is that quasars are very distant, meaning they are objects from much earlier in the universe's history.