Why Don t Roller Coasters Fly Off the Tracks?
0
0
3,248 بازدیدها·
10/22/23
که در
Discovery
Impossible Engineering | Thursdays at 9/8c Upstop wheels apply friction under the tracks to prevent roller coasters from derailing during zero-G drops and turns. Full Episodes Streaming FREE...
بیشتر نشان بده، اطلاعات بیشتر
0 نظرات
sort مرتب سازی بر اساس
