The Number of the Day: 1,943

Related Fact: According to Wired, Crater Lake was first measured in 1886 using a crank and piano wire.
[Sources: The National Park Service and @WiredResearch. See previous Numbers of the Day here.]
Related Fact: According to Wired, Crater Lake was first measured in 1886 using a crank and piano wire.
[Sources: The National Park Service and @WiredResearch. See previous Numbers of the Day here.]