14, rue Pasteur
email : email@example.com
I am a french student, 21 years old, and i would like to know how it is possible to find a concave mirror for the snack "touch the spring". In your web site, you mentionned that it was possible to find one in a scientific supply house for about $40. But in France, it is really hard to find such a mirror (40cm diameter, about 30 cm between the mirror and the focal point) for only $40.
Could you tell me where i could find that kind of stuff in your country (houses' names) and, if you have some information, in France or in Europe.
Thanks a lot.
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