Ballpark — July 15, 2026
Answers to that day's 5 daily estimation questions.
Individual pieces in a standard Boeing 747
6.0 million parts
Including everything from engines to tiny rivets.
Liters of sweat a human can produce in a day
12 liters
Peak production during extreme heat and exercise.
Length of a day on Venus
243 Earth days
Venus rotates very slowly in the opposite direction.
Value of the global coffee market
120 USD (billions)
Includes everything from farms to cafes.
Gallons of water in an average rain cloud
500,000 gallons
Calculated by the water density in a cumulus cloud.