Have you ever been absolutely certain that your sense of touch could never deceive you? Well, today, our interactive exhibit company—specialists in "cognitive exploration" — presents a star product that will make you question your very nerves: "Hot & Cold". It's just a simple metal pipe, but it's capable of plunging you into a philosophical dilemma: "Is this cold, or is it hot?!" Alright, let's follow the universal instructions: Step 1: Please extend your esteemed hand and touch each end of this metal pipe. So? Isn't one side as chilling as ice from the Arctic, while the other is as warm as a thermos cup in winter? The signals are crystal clear! Your nerve endings are precisely reporting to your brain: "Sir! Left flank is cold, right flank is hot!" But the real show is just beginning! Now, with utmost confidence, touch the exact middle of the pipe. At this moment, a "signal pile-up of the century" occurs inside your body! WhatsAPP?+86 18882709667 Email?zgzqkj@gmail.com