Scientific amusements . inciple of Inertia. In treatises on mechanics and physics, inertia isdefined as a property of matter by which bodies tendto preserve a condition of repose, and by which a body,in motion is prevented from modifying of itself themovement which has been imparted to it. A PIECE OF MONEY ROLLING ON AN UMBRELLA. We will first give an illustration of the feat performedby some jugglers—viz., the circling of a half-crown upona Japanese umbrella, as shown in the engraving. Theumbrella is turned rapidly round, and, to all appearance,the half-crown is running along the surface ; bu
Captions are provided by our contributors.
Image details
Contributor:
The Reading Room / Alamy Stock Photo
Image ID:
2AXH455
File size:
7.1 MB (704.6 KB Compressed download)
Releases:
Model – no | Property – noDo I need a release?
Dimensions:
1783 x 1401 px | 30.2 x 23.7 cm | 11.9 x 9.3 inches | 150dpi
More information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
Scientific amusements . inciple of Inertia. In treatises on mechanics and physics, inertia isdefined as a property of matter by which bodies tendto preserve a condition of repose, and by which a body, in motion is prevented from modifying of itself themovement which has been imparted to it. A PIECE OF MONEY ROLLING ON AN UMBRELLA. We will first give an illustration of the feat performedby some jugglers—viz., the circling of a half-crown upona Japanese umbrella, as shown in the engraving. Theumbrella is turned rapidly round, and, to all appearance, the half-crown is running along the surface ; but it isreally the umbrella that is moving beneath the piece of THE PRINCIPLE OF INERTIA. IS money. This is an example.of the principle of inertia.-The experiment is performed very cleverly by theJapanese jugglers. to cut A PEACH, WITH ITS STONE, RIGHT THROUGH. Take an almost ripe peach, of medium size, and insertin it a table-knife so that the blade may be in contactwith ths edge of the stone. If the peach be too ripe. Fig. II.—Half-crown rolling over an Umbrella. to remain suspended on the blade it can be fastened bya thread, but only on the condition that the knife-bladeremains in contact with the edge of the stone. ^ The knife with the peach attached is then grasped inthe left hand tightly and firmly, and with another table-knife a blow is struck by the right hand—a smart, violent i6 PROPERTIES OF BODIES. blow—on the knife, close to the fruit. If the knife hasbeen properly inserted into the fruit, so that the shockis transmitted in the direction of the centre of gravity ofthe peach, the stone will be cut normally to its axis, aswell as the tissue which encloses it, and moreover in avery neat manner indeed.
