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How The Earth Moves

Learn about the movement of the Earth around the Sun and how its effect on how we measure time. This is a good explanation of time zones and how Earth’s orbit has affected our calendar.  

25 Facts About Saturn’s Rings

25 facts about the rings of Saturn.  Contains stunning photos of the planet Saturn and its rings. Dutch astronomer Christiaan Huygens was the first person to view and identify the rings in 1655. Saturn’s rings are made of billions of pieces of ice and

Robotic Cattle Herding

Robotic cowboys, controlled by operators standing on a catwalk above pens,  improve safety by keeping humans away from cattle.  Cattle can weigh up to 1300 pounds. The robotic cattle herders are controlled using joysticks.