A new metallic foil made of aluminium has such good heat-insulating qualities that a layer of it is equal to thirteen inches of brick.
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https://paperspast.natlib.govt.nz/newspapers/DOM19340912.2.38
Bibliographic details
Dominion, Volume 27, Issue 297, 12 September 1934, Page 6
Word Count
24Untitled Dominion, Volume 27, Issue 297, 12 September 1934, Page 6
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