Godey's Lady's Book Volume 101 July To December 1880 (1880)
J. Hannum Jones, A. E. Brown, Mrs. S. A. Sheilds · leaf 57
that it will still remain upon the table until one half of the bulk extends beyond into the end of the egg, making it heavier and the support, when it will immediately fall. In carrying the centre of gravity down to a point this case, the centre of weight—called in science which is so supported… … As another experiment, a book, or still better a block of wood, may be shoved over the edge of a table until the centre of gravity can be de- In the case both of the book and slate, the termined : this point may then be marked. Re- centre of gravity will be found to be also the place the block upon…