Engineer's Puzzle

Latest Puzzle: Screwing with my brain!
This logic puzzle was first published in the US popular science magazine, Scientific American, in one of Martin Gardner’s regular brain teasing columns. It goes like this:

‘Two identical bolts are placed together so that their helical grooves inter-mesh as shown in the illustration. If you move the bolts around each other as you would twiddle your thumbs, holding each bolt firmly by the head – so that it does not rotate – and twiddling them in the direction shown, what will happen to ...
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Previous Engineer's Puzzle

Bear with us…


This month’s puzzle is less of an exercise in applying mathematics to find a solution, and more one ...  Read More

Blowing a fuse


Blowers, a demolition engineer, has just set up two rounds of explosives around two old mill ...  Read More

The number of numbers


An engineer has found himself in a bit of a riddle. For reasons that will take far too long to ...  Read More

Engineer's Puzzle: The Train


Colin, an engineering manager at a component factory in Leeds, is on his way to go and see a ...  Read More

Who's who


A family run multi-national engineering firm has organised its annual board meeting. Pauline is ...  Read More

The team bonding bridge


Four engineers are on a team building exercise, camping and navigating in remote countryside. All ...  Read More

Origami Discombobulation


Problems are sometimes all about seeing things from the right perspective. Many may remember this ...  Read More

The great balls up!


Dave, the engineer, is a clumsy kind of fellow. Whilst walking around the factory floor one day, he ...  Read More

Driving me MAD!


Two engineers are arguing. They'd read a puzzle in Engineering Materials magazine and were trying ...  Read More

Getting a date!


I got one of those cube date calendars things for Christmas. As well being slightly annoying in the ...  Read More

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