These effects are derived from two fundamental observations of physics: a steady current creates a steady magnetic field described by Oersted's law, and a time-varying magnetic field induces an electromotive force in nearby conductors, which is described by Faraday's law of induction.
Butter & salt. Preheat the oven to 400 degrees. Husk the corn, wrap each ear in foil, adding 2 teaspoons of butter to each packet. Bake for about 25 minutes or roast the foil-wrapped corn over hot coals turning once during the cooking. Serve with more butter and salt.
Roasting Chestnuts in an Oven. 1  1. Preheat your oven to 400ÂºF (205ÂºC). 2  2. Cut an X shape into the flat side of each chestnut. 3  3. Place the chestnuts on a baking sheet.  4. Roast the chestnuts for 15-20 1  minutes. 5. Crush their skins.  6. Peel the 1  nuts. 7.  Serve.