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Chinese Blocks
A Jacob's ladder (also magic tablets, Chinese blocks, and klick-klack toyFrauenfelder, Mark (2011). ''Make: Technology On Your Time, Vol. 26: Roll Your Own'', p.148. O'Reilly Media. .) is a Folk culture, folk toy consisting of toy block, blocks of wood held together by strings or ribbons. When the ladder is held at one end, blocks appear to cascade down the strings. This effect is a optical illusion, visual illusion which is the result of one block after another flipping over. It may be considered a Kinetic depth effect, kinetic illusion, where the blocks appear to change position when they do not. Its name ''Jacob's Ladder'' comes from the biblical Jacob's Ladder (Bible), ladder to heaven, mentioned in Genesis 28:12. Of unknown origin, the earliest known review of the Jacob's Ladder is an 1889 ''Scientific American'' article which tells how it is built and works: Construction An arrangement of interlaced ribbons allows each block to act as if hinged to the next one at either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacobs Ladder Toy
Jacobs may refer to: Businesses and organisations *Jacob's, a brand name for several lines of biscuits and crackers in Ireland and the UK *Jacobs (coffee), a German brand of coffee *Jacobs Solutions, an American international technical professional services firm *Jacobs Aircraft Engine Company, former American aircraft engine company *Jacobs Entertainment, an American gaming, hospitality, and entertainment company *Jacobs School of Medicine and Biomedical Sciences, at the University at Buffalo, New York, U.S. *Jacobs School of Music, at, Indiana University, U.S. *Jacobs University Bremen, in Germany People *Jacobs (surname), including a list of people with this name Places *Jacobs, Louisville, Kentucky, U.S. *Jacobs, Pennsylvania, U.S., now Port Providence *Jacobs, Wisconsin, U.S. *Jacobs Island, Antarctica Other uses *Jacobs F.C., a former Irish football club *, a tug, formerly ''Empire Gnome'' See also * Jacob (other) * Jacobs Creek (other) * Jacobs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |