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Showing Shape: It is now time for the head to begin showing shape the shape of the adult, and the tail begins to be absorbed. At this time the creature is unable to eat because of the changes taking place in the head, but the absorption of the tail supplies the necessary nourishment.
The illustration at the left shows four sources of pulsars. Beneath the star map is a series of wave forms showing shape the shape of the pulsations from source 1, known as CP1919, as displayed on an oscilloscope. As shown above, the individual pulsations vary considerably in amplitude, but the repetition rate, the rate at which the groups of three repeat, however, is constant; the pulses repeat every 1.337 sec.
The beauty of gems is greatly enhanced by skilful cutting and polishing [4], for this removes the surface flaws and heightens the colour or brilliance of a stone. The oldest form in which gems were cut was a rounded shape called cabochon, a French word for head. The cabochon is used for stones showing shape the effects of chatoyancy (cat's-eyes) and asterism (star-stones), which are caused by reflections from inclusions.
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