A slow-poke magnet, chaotic pendulum and opposing grapes? Explore magnetic fields and the characteristics that make ferromagnetic and diamagnetic materials, including Lenz’s Law. STEM Challenge: design and build a linear magnetic accelerator.
The Great Lakes only national marine sanctuary brings underwater history up close. Whether you’re in a glass-bottomed boat, looking down from a kayak, or diving underwater, the shipwrecks at the Thunder Bay National Marine Sanctuary give you a haunting look at the past.