FAMILY FUN

New Zealand Tablet, Volume XXXVII, Issue 13, 1 April 1909, Page 518

FAMILY FUN

A Bottled Button. — Place a button, attached by a thread to a cork securely sealed at the top, in a clear glass bottle, and see if you can sever the thread, so that the button falls to the bottom, without uncorking or breaking the bottle. Here is how it is done : — Take a lens and focus the rays of the sun, which pass through the glass without heating it, and burn the thread.

Is Water Porous? — Our belief that two portions of matter cannot occupy the same space at the same time is almost shaken by the following experiment : — If we introduce slowly some fine powdered sugar into a tumblerful of water a considerable quantity may be dissolved in the water without increasing its bulk. It is thought that the atoms of water are so disposed as to receive the sugar between them, as a scuttle filled with coal might accommodate a quantity of sand.