Roller coaster engineer Korey Kiepert joins WIRED to answer the internet's burning questions about roller coasters and the people who design them. How do roller coasters work? Who invented the first roller coaster? How are roller coasters tested? What the tallest and fastest roller coaster in the world? How do they stay on the rails while looping and speeding down the track? Engineer Korey Kiepert answers each of these questions plus plenty more on Roller Coaster Support.

0:00 Roller Coaster Support
0:12 Kingda Ka, the tallest and fastest roller coaster in the world
0:36 Who invented the roller coaster?
1:19 That sinking feeling
2:34 The best seat on a roller coaster
3:17 How are roller coasters tested?
4:35 Wooden coasters vs. Metal
5:38 How roller coasters stay on the tracks
6:34 The art and science of roller coaster design
7:35 Let’s hear it for engineers
8:24 Chat, is it easy to design roller coasters?
9:03 Why do all inverts have a curved first drop?
9:46 How many roller coasters does one person design?
10:28 How do roller coasters work?
11:00 Are carnival rides safe?
11:48 Why are the rides so short?
12:34 Does the USA have the best roller coasters?
13:16 What roller coasters will be like in 40 years
14:03 Why hit the brakes?
14:31 Why do roller coasters make me tired?
14:44 Why do roller coasters break down?
15:23 The line between wooden and metal roller coasters

Director: Jackie Phillips
Director of Photography: AJ Young
Editor: Richard Trammell
Talent: Korey Kiepert
Line Producer: Joseph Buscemi
Associate Producer: Paul Gulyas
Production Manager: Peter Brunette
Production Coordinator: Rhyan Lark
Casting Producer: Nicholas Sawyer
Camera Operator: Lucas Vilicich
Sound Mixer: Paul Cornett
Production Assistant: Lauren Boucher
Post Production Supervisor: Christian Olguin
Post Production Coordinator: Ian Bryant
Supervising Editor: Doug Larsen
Additional Editor: Jason Malizia; JC Scruggs
Assistant Editor: Billy Ward

The photo of Gold Reef City was taken by NOLWEEN and used under the Creative Commons 3.0 license: https://creativecommons.org/licenses/by-sa/3.0/

The photo of the Wildcat Coaster was taken by WILDCAT1 and has been released into the public domain by the author.
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