1 . Light both ends of the first rope and one end of the second rope .
2 . When the first rope burns out ( 30 minutes ), light the other end of the second rope .
3 . When the second rope burns out ( 15 minutes later ), 45 minutes have passed .
Correct Answers Submitted By : Nathan Miller , AICP William Labmert , PE Nicole Sanborn , PE
CRANIUM CHALLENGE
Egg Drop Structural Test
You have 2 identical eggs and access to a 100-story building . What ’ s the minimum number of drops needed to determine the highest floor from which an egg can be dropped without breaking ?
Please send your answers to Thomas Selling via e-mail : thomasselling @ me . com Correct responses will be recognized in the future issues of the New Hampshire Civil Engineer
1 . Light both ends of the first rope and one end of the second rope .
2 . When the first rope burns out ( 30 minutes ), light the other end of the second rope .
3 . When the second rope burns out ( 15 minutes later ), 45 minutes have passed .
Correct Answers Submitted By : Nathan Miller , AICP William Labmert , PE Nicole Sanborn , PE