#hand

#hand

Some Prehistoric Paleolithic Paintings Were Actually Made by ChildrenA new study shows that though thousands of years have passed, some human behaviors still remain. Researchers from Cambridge University and Spain’s University of Cantabria studying Paleolithic paintings have deduced that some of the world’s oldest paintings might have been the handiworks of children. Since the dawn of time, it seems like kids have been doing drawings… What are the chances?The team examined 180 hand stencils painted in Spanish caves around 20,000 years ago. The researchers found that up to 25 percent of the hand marks were not large enough to belong to adults or teenagers. Furthermore, they found that these prehistoric images would have been made by blowing pigments through a hollow reed or bone onto hands placed against the cave wall—a process that would have made the outlines slightly larger than the hands themselves. They theorized that due to the slightly complex process, these children might have gotten the help of adults.Images:VerónicaFernández-Navarro/Journal of Archaeological Science#archaeology #CaveArt #hand #prehistoric #paleolithic #painting #children

After Losing His Fingers, Engineer Built His Own Steampunk Mechanical Prosthetic HandAfter a workshop accident where he smashed his hand, Ian Davis suffered a blood infection that ultimately led to amputations of four fingers on his left hand. To make matters worse, Davis learned that his insurance would have covered the cost of a prosthetic hand if he had lost his entire left hand - not just the four fingers because "fingers are not medically necessary."Being a mechanical engineer, Davis decided to build himself a steampunk prosthetic hand - one that is better than a medical prosthetic hand, and at a fraction of the cost.In this YouTube video, Davis managed to enable the splay function on his mechanical prosthetic hand.