In discussing thermal noise at the beginning of this chapter, we stated that at standard temperature (290 K) the white noise assumption is valid to bandwidths exceeding 1000 GHz. If the temperature is reduced to 3 K, the variance of the noise is reduced, but the bandwidth over which the white noise assumption is valid is reduced to approximately 10 GHz. Express both of these reference temperatures (3 and 290 K) in degrees fahrenheit.