This proves that metal etched in such a way could be useful in the manufacturing of boats and ships, potentially giving them real "unsinkable" properties and allowing them to remain afloat even when damaged.
Lokhu kufakazela ukuthi insimbi efakwe ngale ndlela ingaba wusizo ekwakhiweni kwezikebhe nemikhumbi, ngokunokwenzeka ibanikeze izakhiwo zangempela "ezingacabangi" futhi ibavumele ukuba bahlale bemile uma kwenzeka bonakele.