Energy

In physics, energy is a property of objects which can be transferred to other objects or converted into different forms, but cannot be created or destroyed. The "ability of a system to perform work" is a common description, but it is difficult to give one single comprehensive definition of energy because of its many forms. For instance, in SI units, energy is measured in joules, and one joule is defined "mechanically", being the energy transferred to an object by the mechanical work of moving it a distance of 1 metre against a force of 1 newton. However, there are many other definitions of energy, depending on the context, such as thermal energy, radiant energy, electromagnetic, nuclear, etc., where definitions are derived that are the most convenient.

Common energy forms include the kinetic energy of a moving object, the potential energy stored by an object's position in a force field (gravitational, electric or magnetic), the elastic energy stored by stretching solid objects, the chemical energy released when a fuel burns, the radiant energy carried by light, and the thermal energy due to an object's temperature. All of the many forms of energy are convertible to other kinds of energy, and obey the law of conservation of energy which says that energy can be neither created nor be destroyed; however, it can change from one form to another.

Ludovico Einaudi

Ludovico Einaudi OMRI (Italian: [ludoˈviːko eiˈnaudi]; born 23 November 1955) is an Italian pianist and composer. He trained at the Conservatorio Verdi in Milan and under composer Luciano Berio in the early 1980s. Einaudi began his career as a classical composer, and soon began incorporating other styles and genres—including pop, rock, world music, and folk music.

Einaudi composed the scores for a number of films and trailers, including The Intouchables and I'm Still Here, the TV miniseries Doctor Zhivago, and Acquario in 1996, for which he won the Grolla d'oro for best soundtrack. He has also released a number of solo albums of piano and orchestra, notably I Giorni in 2001, Nightbook in 2009, and In a Time Lapse in 2013. Taranta Project, a collaborative album, was released in May 2015, and Elements was released in October 2015.

Early life and education

Einaudi was born in Turin, Italy. His father, Giulio Einaudi, was a publisher working with authors like Italo Calvino and Primo Levi, and his grandfather, Luigi Einaudi, was President of Italy between 1948 and 1955. His mother played the piano to him as a child. He started composing his own music as a teenager, first writing by playing a folk guitar.