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PRO
Name Description Category Updated User Cards Stars
Water Towers WI-06 Water Towers Ecology 2025-09-24 busynessgirl 10 0 edit
Wastewater Treatment WI-09 Wastewater Treatment Ecology 2025-09-24 busynessgirl 7 0 edit
Flood Control Flood Control Ecology 2024-09-23 busynessgirl 9 0 edit
Storm Surge Storm Surge Unfinished 2024-09-27 busynessgirl 9 0 edit
Wind Power Wind Power - Past and Present Engineering 2024-10-25 busynessgirl 12 0 edit
Electricity & Grid Electricity and the Grid Unfinished 2024-10-26 busynessgirl 20 0 edit
Electrical Transm. Electrical Transmission Engineering 2024-10-26 busynessgirl 11 0 edit
Ancient Water System WI-01 Ancient Water Systems, Aqueducts Ecology 2025-09-24 busynessgirl 8 0 edit
Ocean Shipping TL-01 Ocean Shipping and Cargo Ships Miscellaneous 2025-11-24 busynessgirl 9 0 edit
Fossil Fuels Coal, Natural Gas, Oil Ecology 2024-11-14 busynessgirl 22 0 edit
Railroads Railroads Engineering 2024-11-26 busynessgirl 12 0 edit
Early Air Travel Early Air Travel Engineering 2024-11-26 busynessgirl 8 0 edit
Early Subways Early Subways Engineering 2024-12-03 busynessgirl 7 0 edit
Transportation 1840s Transportation in the 1840s U.S. History 2024-12-03 busynessgirl 6 0 edit
Maslow's Hierarchy Maslow's Hierarchy of Needs Biology 2025-08-11 busynessgirl 6 0 edit
Watersheds Aquifers WI-02 Watersheds & Aquifers Ecology 2025-08-24 busynessgirl 8 0 edit
Dams and Reservoirs WI-04 Dams and Reservoirs Engineering 2025-09-24 busynessgirl 7 0 edit
Water Treatment WI-05 Water Treatment Engineering 2025-09-24 busynessgirl 8 0 edit
Water Towers WI-05 Water Towers Engineering 2025-08-24 busynessgirl 5 0 edit
Sewer Systems WI-08 Sewer Systems Unfinished 2025-09-24 busynessgirl 8 0 edit
Home Plumbing WI-12 Home Plumbing Unfinished 2025-09-24 busynessgirl 10 0 edit
Hydro and Wind PI-01 Hydro and Wind Power Engineering 2025-10-13 busynessgirl 11 0 edit
Generation PI-02 Electricity Generation Engineering 2025-10-13 busynessgirl 6 0 edit
Transmission PI-03 Electricity Transmission Engineering 2025-10-13 busynessgirl 8 0 edit
Power Grid PI-04 Power Grid Engineering 2025-10-13 busynessgirl 8 0 edit
Coal Power PI-05 Coal Power Engineering 2025-11-03 busynessgirl 5 0 edit
Nuclear Power PI-06 Nuclear Power and Nuclear Waste Engineering 2025-11-03 busynessgirl 13 0 edit
TX Power Grid Failur PI-07 Texas Power Grid Failure Engineering 2025-11-03 busynessgirl 4 0 edit
Solar Power PI-07 Solar Power Engineering 2025-11-03 busynessgirl 5 0 edit
Trucking TL-02 Interstates and Long Haul Trucking Miscellaneous 2025-11-24 busynessgirl 13 0 edit
Freight Trains TL-03 Freight Trains Miscellaneous 2025-11-25 busynessgirl 8 1 edit
Air Traffic Control TL-04 Air Traffic Control Unfinished 2025-12-01 busynessgirl 13 0 edit

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