- #1
thundermist
- 3
- 0
My daughter has a sadistic physics instructor who just LOVES to see kids fail. He assigned the following problem to 50 students, but "guarantees" there are no where near 50 answers. Since every student must have a different solution, only a small portion of the class will have a chance of passing. Whoever gets the workable solutions first are the ones who will pass. Not fair, but condoned by the school.
Any suggestions would be greatly appreciated
********
The problem:
A large glass cylinder (approx. 4 feet tall) is filled with water to about 7 inches from the top ... 3 or 4 inches below the water line, a blue line has been drawn on the cylinder ... several inches of small copper wire is folded loosely and dropped into the water ... the goal is to raise the copper wire above the blue line (even if only for a second)
The rules:
-- magnetism can't be used
-- anything inserted into the water cannot be exposed to the air and must be totally submerged (for example, you couldn't have a fish hook on a line)
-- anything you add to the water cannot dissolve or alter the copper wire
-- anything you add to the water cannot "significantly" change the composition of the water
***********
Thanks in advance for any suggestions
~Mike~
Any suggestions would be greatly appreciated
********
The problem:
A large glass cylinder (approx. 4 feet tall) is filled with water to about 7 inches from the top ... 3 or 4 inches below the water line, a blue line has been drawn on the cylinder ... several inches of small copper wire is folded loosely and dropped into the water ... the goal is to raise the copper wire above the blue line (even if only for a second)
The rules:
-- magnetism can't be used
-- anything inserted into the water cannot be exposed to the air and must be totally submerged (for example, you couldn't have a fish hook on a line)
-- anything you add to the water cannot dissolve or alter the copper wire
-- anything you add to the water cannot "significantly" change the composition of the water
***********
Thanks in advance for any suggestions
~Mike~