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
The Most Expensive 30 Seconds
This year, the 30-second Super Bowl ads will...
How long will it take you to trick-or-treat?
It's Halloween and this is your neighborhood...
Why isn't the World Cup happening now?
The World Cup Finals is only played every 4 ...
Ramen noodle heist
In 2018, a truck trailer was stolen from a parki...
Unions and Collective bargaining
There is a confrontation going on in Wis...
Wildfires and particulate matter
Wildfires in Canada have...
How many baseballs are in this truck?
In 2017, Old Dominion Freight Line offered...
What is heat index?
It's been really hot in ma...
The new largest Lego set ever - The Roman Colosseum
Note: This is a remake of our 2014 and 201...