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Bradford Museum of Film and Photography

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Bradford Museum of Film and Photography

Our physics group went on a trip to the Bradford Museum of Film and Photography to find out more about physics.  We went to find out about new ideas of physics and also to reinforce ideas we had already covered in class.  The areas of physics we were going to focus on was the use of light and lenses and the way they are used in everyday products.

At the museum we visited an area called The Magic Factory, which was all to do with the ideas and applications of physics.

At the museum an exhibit, which interested me, was the pinhole camera exhibit.



 This is because it gave a very clear image of the clock tower in the distance through a tiny little pinhole using a converging lens.  There was a few different options you could choose to test how a pinhole camera works, there was the option to use a

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 In this exhibit we had a pen which had lots of optical fibres inside, we then put this onto a screen and made shapes with it, this then made the screen in the parts exposed to the light from the fibre optics glow green.  The material of the screen then captured this light and it slowly faded and disappeared.  Fibre optics can be used in a number of practical applications.  They are very important in telecommunications, this is because they have high carrying capabilities, low power, they can carry digital signals which is very important in the modern world, light in weight, flexible and most importantly cheap compared to the old copper wiring that was originally used.  So the telecommunications companies use these lot now as the have many advantages and also save them money.  They are also used to inspect dangerous places for example the police might use them to view inside a building where there is a hostage situation or a bomb.  So they also help to save lives.

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The positives of fibre optics are clearly present and greatly outweigh the bad points.  However there are some,  the problems can include because you are working with such small wires they can be very fragile and one breakage in the line can ruin the whole cable if it is being layed somewhere and also to repair it is hard to find the actual point where the line is damaged.

However optical fibres are a great advance in technology and I expect that they will carry on being used for a long time yet due to its range of uses and the advantages people can get from them.

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