Buxton Water

Buxton Water

Filed under: Economical with the Truth — Tags: , , , , , — Carl Hepburn @ 7:57 pm July 12, 2009

As someone with a scientific background nothing is more likely to get my back up than people messing with the laws of physics in the context of reality. This is not exactly the same version of the advert I am describing but it suffers from the same problem at the very beginning.

It shows an extreme close-up of a drop of water hanging on the side of the water bottle, in the background is a blurred roller coaster, with an in focus image of the roller coaster in the water drop. I don’t have problem with the focusing issue that is just the depth of field of the camera lens but rather the image within the drop itself. Even the magnification of the image in the drop would have been to trivial to write about.
If you look at the physics of spherical lenses, which is a rough approximation to a water drop, it will produce an inverted image if the object is beyond the focal length and for a large object such as a roller coaster, it is so the image should be inverted. (Have a look at the image formed in a raindrop on a pain of glass.)

If advertisers are willing to play with the physical reality of the world, then one has to ask what other facts would they would distort to sell their product. It is just wrong.

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