Two New Sciences motion and a naturally accelerated vertical motion which produces a parabolic curve. Two motions at right angles can be calculated using the sum of the squares. He shows in detail how to construct the parabolas in various situations and gives tables for altitude and range depending on the projected angle. [274] Air resistance shows itself in two ways: by affecting less dense bodies more and by offering greater resistance to faster bodies. A lead ball will fall slightly faster than an oak ball, but the difference with a stone ball is negligible. However the speed does not go on increasing
Kangaroo word Kangaroo word A kangaroo word is a word that contains letters of another word, in order, with the same meaning. For example: the word "masculine" contains the word "male", which is a synonym of the first word; similarly, the word "observe" contains its synonym "see". The etymology of the phrase "kangaroo word" is from the fact that kangaroos carry their young (known as joeys) in a body pouch. Likewise, "kangaroo words" carry their "joey words" within themselves. "Twin kangaroos" are kangaroo words containing two joey words (for example: "container" features both "tin" and "can"). In contrast, an "anti-kangaroo" word is