Traditional Culture Encyclopedia - Photography and portraiture - _ Xiaohe children's shoes photography

_ Xiaohe children's shoes photography

The source of this sentence is Pascal's: give time and life, not life time.

The original text is: want life from time, not life from time. It means: let the vigorous vitality run through the time you have experienced, and let every second of your life be enriched, instead of letting life disappear with time.

Pascal's main contribution

1, physics

Pascal put forward the law that fluid can transfer pressure in 1653, which is called Pascal's law. Using this principle, a hydraulic press is manufactured. He also made a water injector (syringe), inherited the atmospheric pressure experiment of Galileo and E Torricelli, and found that the atmospheric pressure changed with height. Pascal, the pressure unit in the international system of units, is named after his surname.

2. Mathematics

Pascal has a deep knowledge of mathematics. In addition to his outstanding contribution to probability theory, the most prominent one is Pascal's theorem put forward in his paper on conic curves. Pascal's theorem is an important theorem in projective geometry, that is, "it is collinear with the intersection of three opposite sides of a conic inscribed in a hexagon".