Reminds me of the Exploratorium in San Francisco. They have an exhibition that has a long rail with metal coil wrapped around it. On one side, the coils are warm to the touch. On the other side, they’re cold to the touch. In the middle of the rail, the coils alternate hot-cold-hot-cold, and when I first touched it, my reflexes yanked my hand away because the nerves interpreted it as “so hot the ‘burned nerves’ feel cold”. Took a few attempts to be able to hold my hands there, and the sensation was very confusing. Would recommend+