DIY Projects How To Build A Soft Robot Hand. Use it to wave hello or flip the bird. By Andrew Terranova. Updated Mar 21, 2021 6:03 PM EDT. 20: Pounds of pressure per square inch required to fully ...

The human hand is marvel of engineering, capable of powerfully lifting a climber up a mountain face, precisely threading a needle, or gracefully playing the violin.

It measures 350 mm in length, and is 165 mm wide and 160 mm high (13.78 x 6.5 x 6.3 in). A single finger weighs in at 1.2 kg (2.6 lb), while the whole hand tips the scales at 4.1 kg (9 lb).