Riddle Me This: Cylindrical Draining
A cylindrical tank with a hole at the bottom drains in exactly 60 minutes when full. How long will it take to drain if it's initially only half full?
Why are Blueprints Called Blueprints?
Have you ever wondered why blueprints are called blueprints? The answer is surprisingly simple. The first blueprint was developed in 1842 by John Herschel, an American chemist, astronomer and photographer ...
The Alexander Kielland Platform Sinking
Alexander Kielland sinking: A devastating case study in offshore structural failure & its tragic consequences. Analyze the official report.
The July Ethical Dilemma: Rebate Check
Transparency & disclosure: Engineers, analyze this NSPE case study on rebates and client relationships. Share your insights!
July 2025 Pop Quiz for Engineers
Celebrate American ingenuity and your engineering skills. Take this month's quiz and declare your independence from ignorance.
Riddle Me This: The Bird that Broke the Camel’s Back
A 1-ton truck must cross a bridge that can hold no more than 1 ton. The truck is empty but barely weighs 1 ton. As it’s halfway across the bridge, a bird weighing 20 grams lands on it. Will the bridge collapse?