Breeds This is a simplified guide to guinea pig breeds for pet owners, and does not explain the various breed standards accepted for showing purposes (most cavy clubs have websites where you can find this information).mooth Recommended for: New owners The Smooth breed of guinea pig is by far the most common type of guinea pig you will see in pet shops, and is the classic image of what a guinea pig should look like in most people's minds.
Sir Isaac. 1642â1727, English mathematician, physicist, astronomer, and philosopher, noted particularly for his law of gravitation, his three laws of motion, his theory that light is composed of corpuscles, and his development of calculus independently of Leibnitz.
Sir Isaac Newton. (/ËnjuËtÉn/ ; 25 December 1642 â 20 March 1726/7) was an English physicist and mathematician (described in his own day as a  natural philosopher ) who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution.ewton built the first practical reflecting telescope and developed a theory of colour based on the observation that a prism decomposes white light into the many colours of the visible spectrum. He formulated an empirical law of cooling, studied the speed of sound, and introduced the notion of a Newtonian fluid.