A Science Lesson for Harvey Weinstein

We all know and accept that movie marketing is based around coining phrases, pretending all ideas are original, that the film is great and, of course, sending bloggers free stuff to review (our email address is in the column on the right). Even so, the latest marketing for Spy Kids: All the Time in the World has tipped me over the edge. They are presenting the film in “4D Aromascope”. So that means that the fourth dimension is… smell!

You don’t need a physics degree to know that smell is a sense and not a dimension. But seeing as I do have a physics degree (ahem) let’s see what the fourth dimension is with the help of Wikipedia.

As you can see from the diagram above the first three dimensions are essentially the three directions within which an object can move. On a flat 2D plane you can only move in two dimensions, moving out of the plane makes a third. In cinema everything is technically 2D but those silly glasses sometimes give the effect of the image coming out of the screen, hence 3D. Lovely. We may not be a fan of 3D but the name makes sense.

The fourth dimension is time. The only direction a 3D plane can move in is time itself, or I suppose in the case of a cinema you could have the screen moving around. So a 4D film is simply a 3D image progressing through time, or a regular 3D film playing. Project a 3D film onto the side of a van and drive around town and you will get a 5D film!*

What is definitely not a fourth dimension is a scratch and sniff card! The last time I scratched and sniffed I was at the panto and was scared of girls. How little has changed.

Harvey Weinstein, we await your humble apology.

*That stuff about 5D is in no way accurate.