31.   Despite the studies, said Heath, no form of EMF energy at frequencies lower than those of X-rays and ultraviolet radiation has been shown to cause cancer.

32.   Dual-photodetector sensors are embedded in the frames to gauge ultraviolet radiation and convert that measurement into an electric signal.

33.   Even when clouds or haze hide the sun, its ultraviolet radiation punches through, giving rise to these burning questions.

34.   Exposure to ultraviolet radiation from the sun is the most common cause of all skin cancers.

35.   High-energy ultraviolet radiation that is not absorbed by the ozone layer can penetrate the skin, where it splits DNA.

36.   In the process many expose their skin and eyes to a heavy dose of harmful ultraviolet radiation.

37.   Ingredients like PABA, oxybenzone and cinnamates are examples of chemicals that can absorb ultraviolet radiation.

38.   Like glass, aerogel is impervious to ultraviolet radiation.

39.   Mars was too dry, any water was frozen in permafrost, and intense ultraviolet radiation bathes and sterilizes the surface.