I have noticed this video has gained some traction on youtube. Just an FYI, I made this for my on-level physics project and all together took around 2 days to make. The information provided won’t necessarily be scientifically correct. Lastly, I had some criteria I had to follow, so if some of the information seems unnecessary/wont make a drastic difference (between spikes and trainers), it was to fill the information needed for my project. Thank you!