Muhnad bin Gabriel is a Saudi inventor who was born in 1987 in Jeddah. He studied engineering physics at King Fahd University of Petroleum and Minerals. A traffic accident left him blind and with an injured right leg. Despite his disabilities, he has established the largest Arabic language website for physical sciences, authored three important science books, and patented 22 inventions including a glove that translates sign language to voice and a pen to help those with hand tremors write in a straight line. His submarine called Saqr Arabism can dive to depths of over 6,500 meters, making it the deepest diving submarine in the world.