Try not to be jealous of this guy’s backyard roller coaster
Why visit an amusement park when you could just build a roller coaster in your backyard instead? Before you run outside and try to make your own, it’s important to note that Paul Gregg is a retired aerospace engineer, so a lot of careful planning went into making sure this thing is safe to ride. It isn’t as much fun now that you know physics were involved, huh?
Read more: http://www.wimp.com/try-not-to-be-jealous-of-this-guys-backyard-roller-coaster/
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