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Where do we stand?

A short recap of the theory of gravity as we have seen it developing over centuries from Galileo to Newton and Einstein, in the first week of this course (1:51 …

Welcome

Welcome to Gravity! The Big Bang, Black Holes and Gravitational Waves In this video Pierre Binétruy and George Smoot introduce you to the course (3:31 minutes). You can comment on …

Galileo and the falling bodies

We have all experienced the fall of massive bodies. Let us follow Galileo to see how, from this common experiment, one can deduce a universal law. And beware of our …

Newton and the Moon falling

It is Isaac Newton who realized that the law of the universality of the free fall of material objects was also valid for celestial objects like the Moon, the planets …

The discovery of gravitational waves

Here comes the climax of this course: the discovery of gravitational waves on September 2015 thanks to an event that took place 1.3 billion years ago: the fusion of two …

An example of scientific controversy

In the article to be dowloaded (see file attached), we present you with some elements on the controversy which has agitated the theorists of black holes for the last 40 …