How much waste would a real duck the size of that Big Rubber Duck have produced on September 22, 2013?
According to the National Aviary in Pittsburgh an adult duck produces about 2 T (Tablespoons) of combined liquid and solid waste every 15 minutes during daylight hours.
September 22, 2013 was the autumnal equinox -- it had roughly equal periods of day and night. We've assumed an even 12 hours of daylight on that date. In 12 hours, a duck would "go" about 48 times.
If 1 movement = 2 Tablespoons, then 48 movements = 96 Tablespoons. There are 16 Tablespoons in a cup, so 96 Tablespoons = 6 cups of waste.
We calculated an adult duck's body volume to be about 1 cubic foot.
According to Visit Pittsburgh the big Rubber Duck was four stories tall, three stories wide, and three stories long. We ignored the duck's head, since most of the volume was in the duck's body, and calculated the volume to be about 30' x 30' x 30', or 27,000 cubic feet.
Therefore, the rubber duck's volume was 27,000 times the volume of a real adult duck. If we stick to a volumetric comparison, the big rubber duck would put out a volume 27,000 times that of the real duck. 27,000 x 6 cups = 162,000 cups of duck waste.
For every 1 gallon, there are 16 cups. 162,000 cups equals approximately
10,125 gallons of duck waste.
Congratulations to our winners who submitted their estimates and showed their work! We enjoyed seeing many different angles of estimation, and look forward to meeting them onboard EXPLORER!
- Nan B. of Tarentum, PA (Nan matched our estimate exactly!)
- Katherine W. of Oakmont, PA
- Kelly P. of North Huntingdon, PA
- Natalie B. of Douglassville, PA
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