Show DAINTY HOME experiment little mach ne home made that will produce pretty effect have you ever seen a potter s wheela it Is one ot the oldest sim blest and most interesting of human inventions it Is merely a round level table which Is rotated rapidly by means of a treadle the potter puis a lump of wet soft clay on the center ot the wheel and sets the wheel going then he presses his hands on the whirling lumn ot cia and lo 10 it grows betor yo w eyes into a column a bowl or a beautiful vace according to t e way in w ich he handles it now I 1 am go ng to shew vuu how to mal e a little machine says a writer in literature which may be called fancifully a potter s wheel because you can make vases on it but ou will not 1 ave to muss with wet clay because the vises will be ahan torn vases the wheel is a lound aard fastened to one end of a smooth round stick like a pencil or penholder which forms the axle now 01 en a large english walnut take it the meat and cut away a little ct each shell at each end so that when QU put the shells together you have a smooth round hole at each end of the hollow wal nut one hole should fit loosely the sharpened enl of the axle while the I 1 other must be large enough to take in the full diameter ot the axle make a thir 1 hole still larger in the side of the nut put the axle in place in one of the shells fasten a fine cord to it opposite the third lole pass the cord through this hole put on the oth er shell and fasten the shells together with glue or wax tal ing care not to get any in the holes make a small hole lengthwise in the top of the axle it you have used a penholder the hole Is already there and your pot ter s wheel is complete to make the phantom vase stick a hairpin bent into any shape you in the end of the axle and wedge it tight then holding the nut in your left hand turn the wheel until you have wound up the cord and pull the latter the wheel spins rapidly and on top of it appears the phantom vase formed by the hairpin which revolves so quickly that ou see it in every position at once just as you see a circle of atre when you whirl a burn ing stick the appearance of the vase Is peculiar and very pretty it looks something like glass and ou can see through it its form can be changed by bending the hairpin and so you can make a bowl a column in short anything round as the potter can on his wheel you can make the phantom vase more simply though not so well by sticking the bent hairpin through the the phantom vac middle of a rubber band which you have cut ond opened out then lay ing the hairpin on the table so that it cannot turn ou take an end of the band in each hand and them both in the same direction aa tightly as you can the hairpin will spin rapidly to and fro and produce the appearance of a vase or other round object when you raise your hands from the table and separate them to stretch the rub ber or the hairpin may be attached to a humming top or a spun with the fingers or to a buzzer card with two holes and an endless coid passing through them |