Exactly how many times have you run your hand under a faucet head in order to check the temperature of the water, only to find out its freezing cold or steaming hot?! What if you could skip the blind heat test and find out whether the liquid is cold, hot or perfect? Named Tempdot this modern bathroom faucet is a project of Jaeseok Han. The essence of this design revolves around the circular dots which line the top of the faucet and show the temperature of the water with a range of bright blue to bright red dots for extremely hot and quite cold water respectively, with green in the middle to show a safe lukewarm zone. Believe it or not, the flowing water recharges LED buttons!