Big wheels or small wheels? a comparison скачать в хорошем качестве

Big wheels or small wheels? a comparison

I saw this toy skateboard and hand held battery powered fan in my local bargain store and thought together they might make a simple fan driven car. I quickly established the small wheels were a problem. It is to do with leverage. The fan is trying to push the car forward using the wheel as a lever to turn the axle against the friction of the bearing. The larger the lever the less effort is required, (up to the point where the weight of the wheel requires more effort than the gain from the extra leverage). It would make no difference if the car was sitting on a polished mirror, it is not the friction or roughness of the ground that is the problem, it is the friction of the bearing surface on the axle. Components - 1 toy skateboard 1 hand held battery powered fan 2 drinking straws 2 barbecue skewers 4 CDs 8 plastic bottle tops Tools - Hot Glue Gun Here are some related playlists Help Files    • Helpfiles   Fan Cars    • Fan cars and boats   Rubber Band Powered Cars - Looking at the MATHS    • Rubber Band Powered Cars - Looking at the ...   Big wheels or small wheel    • Big or Small Wheels   My Channels GrandadIsAnOldMan https://bit.ly/2T3x6RX GrandadsOtherChannel https://bit.ly/2yW5uYb Put a rubber band on it https://bit.ly/2T3OF4j Number4 https://bit.ly/3cG4fuZ You can help keep my channel running with coffee and cakes at Patreon https://bit.ly/35XFasL If you don't like Patreon you use Kofi instead https://bit.ly/3dNusI9 Merchandise on RedBubble https://rdbl.co/2yJv56H Merchandise on Cotton Cart https://bit.ly/2xZymOP Merchandise on Teespring https://bit.ly/2Zby02T Twitter https://bit.ly/3fMUgFN FaceBook https://bit.ly/3csbruk Pinterest https://bit.ly/2WTuuXP Instagram https://bit.ly/2WPLa2F Thingiverse https://bit.ly/35WfSem Tinkercad https://bit.ly/2WUrM4q Oldest videos https://bit.ly/2Z4RBl1 Most Popular https://bit.ly/3cx0lUP Newest videos https://bit.ly/2T3TryJ Playlists https://bit.ly/3dI9mdV I have thousands of videos on YouTube, to find one try my search guides    • YouTube App Search and Video Description   or    • How to search for my YouTube Videos   I am happy for you to show my content as part of your own projects or in public settings as long as you clearly credit GrandadIsAnOldMan. Do not copy my video content and pass it off as your own. #GrandadIsAnOldMan #GrandadsOtherChannel #Putarubberbandonit #Number4