Why Do the Steelers Have 3 Stars?

Direct Answer • Key Takeaway

The Three Hypocycloids Mean: Steel Lightens Your Work, Brightens Your Leisure and Widens Your World. They Also Represent the Three Materials Used to Produce Steel: Yellow for Coal, Orange for Iron Ore and Blue for Steel Scrap.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.

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