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...Industry Research Association analyse and refine engine noise to reduce its effects on the driver. Living With Road Noise The people of Derbyshire village Doveridge describe how noise pollution from the A50 has changed their lives. The Noisiest Roads in Britain The Transport Research Lab use a machine called Triton to measure tyre noise on all kinds of road surfaces ....

...change direction and gain speed. They explain the difference between traditional and cutting edge military technology, and demonstrate what happens in an emergency landing. This material forms part of the course S207 The physical world... The physical world: helicopters An introduction to this album How helicopters fly Marie and Tracey from the Royal Berkshire Ambulance...

...changes in cell structure during the development of diseases and are routinely used in pathology labs around the world. If you are interested to learn more about histology, the study of the microscopic structure of complex plant and animal tissues, the free OpenLearn course ‘Histology, microscopy, anatomy and disease’ provides a lot more information. In this course,...

...change of profile which is not easily obtained on a milling cutter. Much less time is spent “grinding air” than in conventional grinding, where as much time may be spent grinding air as grinding material. Form-holding characteristics are much better than conventional grinding, due mainly to the elimination of the vibration which occurs in conventional grinding as the...