Lifting 18 kg with one hand and effortless? Learn from physics

Could you lift an 18-pound wheel over your head with one hand and effortlessly? In the video you can see above, Professor Eric Laithwaite of the Imperial College School of Engineering in London shows that this is possible, as well as explaining how you can accomplish the feat.

To be able to lift a wheel - 35 centimeters in diameter, mounted on a bearing on a bar of almost 1 meter - so easily, the Professor uses a tool that causes the object to rotate at 2500 RPM, generating enough energy to launch the structure. at 1.52 meters in height for 3 seconds.

Also, according to the teacher's explanation, there is no kind of centrifugal force pulling his arm sideways. Laithwaite just follows the natural trajectory of the revolving frame, raising the arm and then lowering the frame and braking the wheel. ( To enable video subtitles, simply click the "cc" menu button ).

Sources: YouTube, Rex Research and Imperial College