Show proving the harths motion any one says an exchange can prove the rotary motion of the earth on its axis by a simple experiment for making which an educational journal of frankfort germany gives the follow ing directions take a good sized bowl fill it nearly I 1 full of water and place it upon the loor floor of a room which is not exposed to shaking or jarring from the street sprinkle over the surface of the water a costing coating of powder a white substance which can be obtained at any then upon the surf ate of this coating of powder make with powdered charcoal a straight black line say one or two inches in length having made this little black mark maik with the charcoal powder on the surface of the contents of the bowl lay down open apen the floor close to the bow lastick stick or some other straight object so that it shall be exactly parallel with the mark if the line happen to be parallel with a crack in the noor floor or with any stationary object in the room this will serve as well leave the bowl undisturbed for a tew lew hours and then observe the position of the black mark with defey reference ence to the object that it was paral parallel lIBI with it win will be found to have moved from east to west that is to say in that direction opposite to that of the movement of the earth on its axis the earth ii in a simply revolving has car carried ried the water and everything else elge in the bowl around with it but the powder on the surface has been left behind a little the line will always be found ua have moved from east to west which is perfectly good proof that every 1 thing else has bas moved the other way |