Biker demonstrates aerodynamics in action on track

Because science...

EVER WONDERED what effect aerodynamics have?

Wonder no longer, as this video from YouTuber Unrestricted Isle perfectly demonstrates the vacuum vortex caused by the hunched over rider. 

When the biker's pillion seat comes loose on a track day at the Isle of Man's Jurby Motordrome, instead of flying off the bike as you would expect it to, it sticks to him as he continues to speed around the track. 

Even when he gets a serious lean on in the corners, the seat doesn't budge. 

He eventually notices and pulls over to reattach the seat. 

A good job too, else it could have ended up like this...