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aqualung |
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aqualungUnderwater breathing apparatus worn by divers, developed in the early 1940s by French diver Jacques Cousteau. Compressed-air cylinders strapped to the diver's back are regulated by a valve system and by a mouth tube to provide air to the diver at the same pressure as that of the surrounding water (which increases with the depth). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Hermione squashed this plan by pointing out that, in the unlikely event that Harry managed to learn how to operate an aqualung within the set limit of an hour, he was sure to be disqualified for breaking the International Code of Wizarding Secrecy--it was too much to hope that no Muggles would spot an aqualung zooming across the countryside to Hogwarts. You could learn to fence, dive with an aqualung and tie nautical knots. As a military engineer, he designed an aqualung, pumps for getting water into siege towers, efficient ways to pour boiling oil on enemy troops, and techniques for dislodging attack ladders from castle walls. |
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