Related topics: body mass index · obesity · weight loss · women · weight gain

Prehistoric killing machine exposed

Previously thought of as heavy, slow and sluggish, the 260-million-year-old predator, Anteosaurus, was a ferocious hunter-killer.

Creating a 3-D-printed bioresorbable airway stent

Narrowing of the trachea or the main bronchi due to injury or illness can end very badly. If patients get too little air,oxygen, they risk suffocating and often need medical help as quickly as possible.

Researchers advance new route to chemically recyclable plastics

As the planet's burden of rubber and plastic trash rises unabated, scientists increasingly look to the promise of closed-loop recycling to reduce waste. A team of researchers at Princeton's Department of Chemistry announces ...

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Weight

In the physical sciences, the weight of an object is the magnitude, W, of the force that must be applied to an object in order to support it (i.e. hold it at rest) in a gravitational field. The weight of an object equals the magnitude of the gravitational force acting on the object, less the effect of its buoyancy in any fluid in which it might be immersed. Near the surface of the Earth, the acceleration due to gravity is approximately constant; this means that an object's weight near the surface of the Earth is roughly proportional to its mass.

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