Ballpark — July 25, 2026
Answers to that day's 5 daily estimation questions.
Average speed of an Olympic sprinter (Usain Bolt)
27 mph
Peak speed during a 100m dash.
Elevation of the Dead Sea
1,412 feet below sea level
Sinking roughly 3 feet per year.
States in the USA that touch the Pacific Ocean
5 states
CA, OR, WA, AK, and HI.
Elements in the Periodic Table
118 elements
The last four were officially added in 2016.
Total length of the world's coastline
220,000 miles
Difficult to measure exactly due to the coastline paradox.