Many extreme roller coaster these days have vertical loops. Have you noticed that these loops are never circular? Why is this? They all, also, seem to have the same similar ‘inverted teardrop’ ...
devinsupertramp on MSN
Runner completes upside down loop at high speed
Running UPSIDE down LOOP! turns speed, momentum, and timing into a gravity-defying stunt as a runner attempts to complete a ...
I can't help myself. I have to say something about this awesome water slide as seen on io9. You really should check out the io9 article - an interesting read. But for me, let me see if I can estimate ...
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