Engineers have developed electronic ‘stickers’ that can measure the force exerted by one object upon another, an advance that could be applied to medical aids and robotics. Developed at the University ...

A force is a push or a pull. For example, when you push open a door you must apply a force to the door. You also must apply a force to pull open a drawer. You cannot see a force but often you can see ...

In bird colonies, schools of fish and cycling pelotons, significant interactions occur between individuals through the surrounding fluid. These interactions are well understood in fluids such as air ...