Let the brightness of that light illuminate but not blind.

For a grey body the spectral radiance is a portion of the black body radiance, determined by the emissivity formula_11.

In the early 1970 s, the flush of technological optimism was over, the Vietnam War was a disaster, societies were in turmoil, and economies were stagnating.

Nothing fades as quickly as the glow of an election victory, and the German idyll will soon be disturbed by harsh reality the European Union s simmering crisis, Syria, Iran, and energy policy.

Many patients' first symptoms are strong glare from lights and small light sources at night, along with reduced acuity at low light levels.

A grand coalition is not the worst option. Nothing fades as quickly as the glow of an election victory, and the German idyll will soon be disturbed by harsh reality the European Union s simmering crisis, Syria, Iran, and energy policy.

But, in a recent newspaper commentary, Putin raised a question that has surely occurred to others What were the regime s motives in using chemical weapons in the glare of international publicity? Putin suggested that the attack might have been provocation by Assad s opponents.