Advanced prosthetics can help people who’ve lost a limb get back to the life they were living before an accident, but there's one huge problem -- prosthetics can be extremely expensive.
When a homemade bomb exploded prematurely, Sun Jifa lost both his arms, meaning he could no longer work on the family farm. The hospital wanted too much money for prosthetics that could get him back to work, so he spent 8 years making his own.
This real-life Iron Man designed countless prototypes for his new hands and after years of trial and error he finally came up with a design that worked for him. There's no robotics involved as Sun Jifa chose a more conventional, mechanical approach for his new limbs. Hand and finger movements are simply controlled by a series of cables and pulleys that respond to his elbow movements.
Unfortunately, there is one drawback. Sun Jifa used scrap steel to construct the prosthetics, which ensures they will last a long time. However, it also means that the limbs are heavy and put a lot of strain on the 51 year old. The steel also responds quickly to changes in temperature, meaning they get very hot during the summer and cold during the winter.
Now that he has completed his goal, Sun Jifa plans on using his skills to craft prosthetic limbs for other people in his community enduring similar hardships. You can read the full story over at DailyMail.