Penny Gaff presents · admission one penny
THE WHEEL of LIFE
Thirteen frames, thirteen slits, one flick of the wrist. Drag the drum and watch paper come alive — then watch it die again as the spin runs out.
A red tin drum on a wooden spindle. Its upper band is cut with thirteen vertical slits; a paper strip of thirteen drawings lines the inside. Spin it at the right speed and the drawings fuse into a single moving figure.
Drag the drum — flick it hard, then watch the spin die.
The drum needs a canvas to turn in. Your browser declined — but the shop below still stands.
MARVELLOUS!
THE ZOETROPEor, The Wheel of Life — the drum that taught pictures to breathe
Being a tin drum of thirteen slits which, spun briskly upon its spindle and viewed through the gaps, persuades the eye that ink and paper live. The dog runs. The pony gallops. The tumbler turns his somersault for as long as your wrist can pay for it.
Spun by hand · No electricity · No trickery but your own stubborn eye
Two shillings One shilling & sixpence — strip included
The honest physics
Your eye keeps each glimpse for a tenth of a second
That afterimage is the whole trick — and the whole risk. Each slit that crosses your line of sight admits one flash of the drawing behind it. Whether those flashes fuse into life or fall apart into stutter depends entirely on how fast you spun the drum. The gauge tells the truth; so does the dog.
JUDDER
Under eight passes a second, each flash fades to black before its successor lands. The picture arrives as separate slaps — the dog stutters between poses, and the dark between glimpses shows as flicker. Victorian children called this the limp.
Below 8 passes / sec
TRUE
Between eight and eighteen passes, every new flash lands inside the afterimage of the one before. Thirteen drawings fuse into a single running dog. Nothing on the drum has changed — only the arithmetic between the slits and your retina. This is persistence of vision, earned.
8 – 18 passes / sec · a lazy turn each second
GHOST
Past eighteen, the drum outruns the eye. Two and three frames now crowd into a single afterimage, and the dog doubles — a pale twin runs half a step behind him. Spin harder still and the twins multiply into smear. Keep at it long enough and you may shake something loose.
Above 18 passes / sec
The shop
Penny Gaff, Optical Toy Maker
Fourteen years rolling tin on Rivington Street, and still nobody believes the dog until they've spun him themselves.
The drum is rolled tin, painted carriage-red and rimmed in brass. The spindle is turned pearwood, waxed so a good flick coasts the better part of a minute. The strips are inked by hand — thirteen frames each, because thirteen divides a second the way an eye likes it divided. Slower drums want fewer slits; ours wants exactly one lazy turn a second, which any child's wrist owns by instinct.
Every strip is drawn to loop without a seam: the last frame hands its weight to the first the way a juggler hands a club behind his back. If you can find the join, bring the strip back and Mr Gaff will ink you another for nothing.
| The Wheel of Life — drum, spindle & one stripcarriage-red tin, brass rims, pearwood base | 1s. 6d. |
| Picture strips, hand-inked, the set of thirteen framesthe Circus Dog · the Trick Pony · the Tumbler | 6d. each |
| Replacement slit-paper, cut truefor drums that have met the floor | 2d. |
| The Spectre stripnot sold. It arrives on its own, to those who spin too hard. | — |