Some very famous ancient Chinese inventions include fireworks, compass, abacus, coins and the sun dial,(a clock that uses the sun to cast a shadow to tell the time.) Most of these inventions are still used today. However, some have been modified e.g. the sun dial has been upgraded to a clock, the fireworks are now upgraded to be bigger and perform improved displays in the sky, the compass is now smaller and many famous explorers used a compass to navigate the oceans and discover new lands. They are still used today on ships and also on planes and helicopters to navigate the course they need to follow, today coins are still used in trade and business as they were in ancient China. The abacus was a device used to calculate mathematical problems very accurately right up to this day.