2023-11-20 09:44:30
Green, green river
Green, green river

During the St. Patrick's Day parade in Chicago, the local plumbers union dyes the Chicago River emerald green.
Students learn what PPM (parts per million) means and attempt to figure out how much dye is used to sufficiently color the river.
Comments (0)
Display 1 - 10 Of total 0
Veterans Day, 2023
On Veterans Day we honor the men and women that ha...
Why isn't the World Cup happening now?
The World Cup Finals is only played every 4 ...
What's my angle?
I'm going to help save the planet by adding so...
What time is it in Cambodia?
I need help! My daughter is traveling ...
Deflategate
The deflated ball controversy ma...
Valentine's Cardioid
WojciechSwiderski at the Polish l...
Value of a lifetime of Whoppers?
Locked in a smelly bathroom for one hour and the...
February 22, 2022
Why do you suppose we are posting this date as a...
The Scale of Things
🌎In this ...
Earth's perihelion with the Sun
On January 4th, 2023, Earth will be as close as it...