Have you all experienced on a thrilling + fun roller coaster ride in any amusement parks?

I am sure most of them there would be exciting and worried at the same time especially in their safety aspects..

What causes that sinking feeling in your stomach when you ride a roller coaster??

Your stomach is not tide tightly to your body and it moves a little. When a roller coaster starts down a hill, for an instance, you are nearly weightless, including your stomach. Because it is weightless, your stomach is not pressing down which makes you feel strange. Also, you know how after awhile on a roller coaster, you start to get dizzy? That feeling is because of fluid movement in your ear, and combined with the blurred landscape, can lead to dizziness or motion sickness..

Well, you may wonder why the roller coaster car does not fly off track. One wheel on top of the track while another one at the bottom preventing the rail from falling off the track. Wheel on the side of the track keeps the roller coaster from falling off sideways. The road wheel runs on top of the rail and carries the car. The upstop wheel operates under the rail.

It was invented by John A. Miller in the 1990s to keep the car from jumping the rail.. The guide wheel runs along at side of the rail, and keeps the car from jumping off the rail sideways..

However, there are few unwanted cases and accidents that made people fear of roller coasters..

Just do small research on the background of the amusement park you are going before riding the roller coaster.. That will keep you at the safer side...
=)