Prosthetic hands typically come in three varieties: purely cosmetic models; hooks and other low-cost mechanical appendages that provide a limited range of motion; and electronic versions that better mimic natural hand movements yet can cost tens of thousands of dollars. Mark Stark’s prosthetic incorporates the best elements of each. Although its minimalist plastic assembly is nearly as light and inexpensive as a common steel hook, it looks and moves like a high-end electronic hand.
Don't be contended on how much knowledge you have. Because in this world nothing is constant everything might change in a blink of an eye. Always seek for things in life that might help you in the near future. Improve yourself by practicing your talents and listening to other people's advice
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