String Time
July 13, 2010
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You have two pieces of string. Each burns in one hour, but they burn irregularly in terms of how many inches burn per minute anywhere along the string. Can you use the strings to time 45 minutes?
You have two pieces of string. Each burns in one hour, but they burn irregularly in terms of how many inches burn per minute anywhere along the string. Can you use the strings to time 45 minutes?
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