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Question:

How can a model boat get over an solid object (that it cannot go around) in the water?

For a school project, we have to create a model boat that can get over an object in the waterIt has to get from one side of the mini pool to the other and cross the solid object in the middle (which is higher then water level)CATCH-We can only use objects from Lincoln's time, which is the 1830s to 1840s in this caseOur original idea was to create a Chinese lantern with a short candle wickThe boat would float up, we would give it a push (which is allowed), and the wick would burn out once it got acrossUnfortunately, no fire or other non-school-appropriate items are allowedAny ideas on how to accomplish this?

Answer:

Could you possibly be referring to Dumdum bullets? The British might have used rounds made in their arsenal called Dumdum in IndiaThese rounds had the tip sawed off, exposing the soft lead core If that's not it, then the only other name I've ever heard for an empty tip is hollow point.
Use a crane to lift up the boat and carry it over the dam
The Mossad is known for putting mercury in the hollow point so it splatters when the bullet stops abruptly.
Could you possibly be referring to Dumdum bullets? The British might have used rounds made in their arsenal called Dumdum in IndiaThese rounds had the tip sawed off, exposing the soft lead core If that's not it, then the only other name I've ever heard for an empty tip is hollow point.
The Mossad is known for putting mercury in the hollow point so it splatters when the bullet stops abruptly.
Use a crane to lift up the boat and carry it over the dam

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