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.
Beavers are back in Britain—charming many Britons, perturbing others, and all the while stimulating a healthy debate about whether the island nation is ready to embrace a wilder future.