has been spent looking alot at this:

Screen Shot 2014-02-20 at 18.55.51

and doing a lot of this:


I think in the end the Venturi effect WOULD apply to the cut (Venturi effect being the increase in wind speed and drop in pressure due to the area the wind passes through becoming constricted) and it has provided me with a useful equation to figure out what exactly the width of the cut should be in order for your head NOT to explode….

The answer I’m getting is having to widen the cut from 20m to… 375 m!!

Will check my maths with Evan tomorrow! I don’t know why I find all of this so exciting!

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