Reducing traps increases performance of organic photodetectors

Physicists at the Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) discovered that trap states rule the performance of organic photodetectors, ultimately limiting their detectivity. These highly ...

Unravelling the when, where and how of volcanic eruptions

There are about 1,500 potentially active volcanoes worldwide and about 50 eruptions occur each year. But it's still difficult to predict when and how these eruptions will happen or how they'll unfold. Now, new insight into ...

Appearance, social norms keep students off Zoom cameras

When the semester shifted online amid the COVID-19 pandemic last spring, Cornell University instructor Mark Sarvary, and his teaching staff decided to encourage—but not require—students to switch on their cameras.

Aphids suck: Invasive aphid found on Danish apple trees

The spirea aphid, Aphis spiraecola, an invasive pest, has been discovered for the first time in Denmark by University of Copenhagen researchers. The extent of its current distribution remains unknown, but in time, it could ...

Eggs reveal what may happen to brain on impact

What causes brain concussions? Is it direct translational or rotational impact? This is one of the research areas currently being explored by Qianhong Wu's lab at Villanova University.

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Physics

Physics (Greek: physis – φύσις meaning "nature") is a natural science; it is the study of matter and its motion through spacetime and all that derives from these, such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the world and universe behave.

Physics is one of the oldest academic disciplines, perhaps the oldest through its inclusion of astronomy. Over the last two millennia, physics had been considered synonymous with philosophy, chemistry, and certain branches of mathematics and biology, but during the Scientific Revolution in the 16th century, it emerged to become a unique modern science in its own right. However, in some subject areas such as in mathematical physics and quantum chemistry, the boundaries of physics remain difficult to distinguish.

Physics is both significant and influential, in part because advances in its understanding have often translated into new technologies, but also because new ideas in physics often resonate with the other sciences, mathematics and philosophy.

For example, advances in the understanding of electromagnetism led directly to the development of new products which have dramatically transformed modern-day society (e.g., television, computers, and domestic appliances); advances in thermodynamics led to the development of motorized transport; and advances in mechanics inspired the development of calculus.

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