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Ligo's mission is to observe gravitational-waves. It is made of two long pipes, each 2.5 miles long. We have a laser  which produces the purest light you can possibly make.
When the pipes measure the same length, the detector can't detect something so there is not light. While when they don't measure the same length, the detector can detect gravitatonal-waves so there is a red light. This happened once time: 11 february 2016. In 2017 the scientists who have worked on this discovery have received the Nobel Price.

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Here is a picture of my class experiment which I have made with Idil

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Here is a picture of my class experiment which I have made with Idil

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Any body plunged in a liquid is subject to a push acting from down to up equals to the weight of the liquid's volume displaced by the object.

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Because the Moon is closer to the earth than the Sun it has the most influence on tides. In fact the attractions between the Moon and the Earth are responsible for tides. The gravitational pull of the Moon causes the oceans to bulge out toward the Moon. When the gravitational pull is at its highest point the result is high tide and when it is at its lowest point the result is low tide. The earth itself is also pulled toward the Moon because of its own rotation. This pull the Earth away from the water in the opposite side of the Earth, making the water on that side bulge as well. Therefore high tide occur on both side of the planet at the same time. Whe said that the Earth has a rugby ball shape. In a day there are two high tides and two low tides. There are six hours between the different tides.

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Tides are the rise and fall of sea level caused by the gravitational forces exerted by the moon and the Sun and the rotation of the Earth.

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The apple three whose the apple would have fallen.

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Newton discovered gravitation by watching an apple fall from a three. After he has seen that, he wondered why the apple goes down and not sideway or upwards.

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The equation to caculate the gravitationnal force.

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The equation to caculate the gravitationnal force.

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The further than each other the objects are, the smaller the gravitational force is and the bigger their masses are, the bigger the gravitational force is.

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The gravitation is the attraction between two things which have a mass.

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Patricia Boyd  is a scientist who was born in Jersey. She is keen on dance, gymnastic, music and she loves singing. She is in an a capella group called Chromatics. She studied at Villanova University and she studied physics in graduate at Drexel University. She worked on few projects like Hubble and the Rossi X-Ray Timming Explorer mission. Patricia's main interest is analyzing data from astronomical objects to surch for periodic and non-periodic variations, to learn about the dynamical interactions taking place in the objects.
I like her because she is an artist before be a scientist and because she had to make a difficult choice between her passions and her career. She is determinated and she is involved in various projects. Furthermore, she is keen on gymnastic, dance and music like me and she is working on interesting and strange things about Universe.

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The Universe is the whole of all that exists.