Ozone layer an altitude of 100 kilometers from the planet's surface. The photochemical mechanisms that give rise to the ozone layer were discovered by the British physicist Sydney Chapman in 1930. Ozone in the Earth's stratosphere is created by ultraviolet light striking ordinary oxygen molecules containing two oxygen atoms (O), splitting them into individual oxygen atoms (atomic oxygen); the atomic oxygen then combines with unbroken O to create ozone, O. The ozone molecule is unstable (although, in the stratosphere, long-lived) and when ultraviolet light hits ozone it splits into a molecule of O and an individual atom of oxygen, a continuing process
The Layer Quaternity God on High" and "I will exalt thee my God" ". (Latin upper captions translated) Libavius' illustration and the marble sculpture of the Layer Quaternity share an identical pairing including a naked figure (lower pair), a bare-legged royal male and a regal draped female (upper pair) as well as the titled captions "Gloria" and "Labor", along with the symbols of palm branch, "rotundum", and moon. The similarities between the captioned phrases of Libavius' illustration to those of the single-word titles of the Layer Quaternity suggest that in time sequence, the Layer monument was based upon and installed before 1606, the