DO YOU KNOW?
How Can Grass Grow Through Hard Ground? Each blade has a fine, hard point which forces its way between the particles of the soil and forms a path for the blade to follow. Why Does a Blacksmith Wet his Coal? To prevent the escape of heat into the air. Fine, wet coal cakes when burning; a layer is, formed over the fire and the heat is imprisoned. Why Doe^ Electricity Give us a Shock? By suddenly and violently contracting the muscles. Why are Horseshoes Supposed to be Lucky? Old horseshoes usually had seven nail holes. From the earliest times seven was regarded as a lucky number, and anything which naturally had seven holes or spots was supposed to bring good fortune. - .
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https://paperspast.natlib.govt.nz/newspapers/EP19380827.2.174.6
Bibliographic details
Evening Post, Volume CXXVI, Issue 50, 27 August 1938, Page 20
Word Count
124DO YOU KNOW? Evening Post, Volume CXXVI, Issue 50, 27 August 1938, Page 20
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