Business

Jordan's electric car users battle with batteries

Electric car early adopters in oil-poor Jordan are now having to grapple with the thorny question of battery disposal, as demand for the technology accelerates across the region.

Engineering

Energy-efficient neighborhood redevelopment for affordable housing

In the "smood—smart neighborhood" project, 16 companies, four research institutions and an association have been working together, with the scientific support of Fraunhofer, on the future of energy-related renovation measures ...

Business

Mexico invites foreign investment in clean energy transition

Mexico welcomes investment by all countries in its clean energy projects, its foreign minister said on Thursday, launching a diplomatic charm offensive amid international concerns over controversial power reforms.

Energy & Green Tech

How solar farms can double as havens for Australia's wildlife

Australia's renewable energy transition has prompted the construction of dozens of large-scale solar farms. The boom helps reduce Australia's reliance on fossil fuels, but requires large areas of land to be converted to host ...

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Energy

In physics, energy (from the Greek ἐνέργεια - energeia, "activity, operation", from ἐνεργός - energos, "active, working") is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force.

Any form of energy can be transformed into another form, but the total energy always remains the same. This principle, the conservation of energy, was first postulated in the early 19th century, and applies to any isolated system. According to Noether's theorem, the conservation of energy is a consequence of the fact that the laws of physics do not change over time.

Although the total energy of a system does not change with time, its value may depend on the frame of reference. For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy relative to the Earth.

This text uses material from Wikipedia, licensed under CC BY-SA