The Bookshelf for boys and girls Book of Wonders and Curious Things (1912)
University Society, New York · New York: University Society · leaf 92
shown at A in thefigure; then from this cut out a narrow stripreaching to the tail. Placing this paper fish in any long vessel fullof water, it will, when you are ready for it to doso, slowly move head first along the surface ofthe water without your touching it. (Care mustbe taken to lay it gently… … promptly, so the oil seeks the path of least re-sistance. In this case this is found to be by pass-ing out of the channel which leads from the holeA to B; and in issuing from this channel it willpush the fish forward. A JUMPING TRICK Lay ten toothpicks in a row at equal distances.Move them by…
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