Image

Fun With Fundamentals: Problem 261

Sept. 1, 2002
Miss this one me hearties and ye’ll walk the plank.

Problem 261: Rum dumb

Now ye’ve all heard of the legendary “Blackbeard” and his exploits on the high seas. It’s said if old Ed Teach wasn’t “acquiring” treasure, he was burying it for safekeeping. Most of his swag was hidden on deserted islands, one of which is where our tale takes place.

In the late 1600s, Blackbeard and his crew landed at Murrells Inlet, S.C., to unload a few cases of rum that fate and good fortune brought their way. The pirates must have done more swigging than digging, however, because they set sail without one of their trusty mates. Two years later, they realized their error and returned to find 32 empty rum bottles and a skeleton dressed in weathered clothes.

If each bottle was 90% full, how long did the marooned sailor live if he drank exactly 4 oz. a day? Assume the containers are cylindrical, 4 in. in diameter and 8 in. in length, with a wall thickness of 1/8 in. For extra credit, what was this unfortunate crewman’s name?

Solution to problem 260 Extended Play, August 2002:

Winners Circle

Fun problem 259: Licorice whip lash July, 2002 Total entries: 27 Number correct: 18 (66%) Winner: Frank Nimblett, Cambridge, Mass. Frank’s prize: TurboCAD V 8.0 from IMSI. With the latest version of TurboCAD, you can control layers, workplanes, views, lights, and cameras from a single palette. Features include and upgraded ACIS solid modeling engine, part tree that records entire history of 3D object creation and modification in an Explorer-like palette, assemble by facet, and applying light properties to any object.

(Note: In the Problem 259 solution, the moment of inertia I=mr2=20.99 slug-ft2. The ½ should have been omitted from the equation.)

Get your creative juices flowing and send us your original problems and solutions.

Related article

Fun With Fundamentals: Problem 260

Sponsored Recommendations

Customizations to Get Standard Motors to Mars

Jan. 10, 2025
Clearly, the Martian environment can be harsh and unaccommodating to systems made to operate on Earth. Through a combination of standard industrial motors and creative collaboration...

No Access for Bacteria: An Inside Look at Maxon's Cleanroom

Jan. 10, 2025
Tiny drive systems for use in the human body have to be built in a clean environment, free of microbiological contamination. Welcome to the GMP cleanroom of maxon, where discipline...

High-Efficiency, Precision Drive Systems for Every Robot

Jan. 10, 2025
Robots assemble devices, explore space, and perform surgeries. To achieve human-like motion and accuracy they need powerful and highly precise drives. Learn about custom-made ...

The Importance of Motors in Transportation

Jan. 10, 2025
As we progress toward more efficient and automated systems, the need for robust and reliable motors in the transportation industry has become more critical than ever. Explore ...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!