Biking is far more advanced in the Netherlands, just admire this highway overpass roundabout

Found on http://www.mymodernmet.com/profiles/blogs/ipv-delft-hovenring

Design and engineering matter. Also, use a crash test dummy before you try a loop ramp yourself

I believe that before human testing is approved, you ought to run the tests and trials with crash test dummies... that's just me though

Found on http://dailytimewaster.blogspot.com/