Very Fast Mechanical Mini Car vs Simplest Electromagnetic Train

This is speed challenge of simplest electromagnetic train 1.5V (compared with super clockwork mini car). Best performance is 4:40 ※ In this video's Lithium battery has safety holes for gas. ※ Symbol of Φ is magnets diameter. ※Friction = advantage about friction The standard written on the battery in this video is Alkaline (AA LR6 1.5V), Lithium (AA L91 FR6 1.5V) 【Run outside the coil】 https://youtu.be/Y1MDOerruDU 【How to make】 https://youtu.be/IXeXcbvBPJw 【1st model - 12 million views】 https:/

• #فناوری_و_رایانه
• #science_experiments
• #magnet
• #battery