What Causes the Tides? By Rick Groleau; Posted 11.19.02; NOVA; In this animated interactive, see how the motion of the Earth creates inertial forces that combine with the gravity of the moon and sun to produce ocean tides on our planet. Explore how the relative motion of the Earth, moon, and sun combine to produce ocean tides.
Place the potato directly on the oven rack. Bake for 40 to 60 minutes, depending upon the size of the potato. Potatoes are as hard as a brick when they are raw. By the time itâs cooked youâll be able to squeeze it. Test it to see if it is tender by inserting a knife into the potato. The knife should slide in easily.
1 Preheat oven to 450 degrees F (250 degrees C). 2  Place potatoes in a large roasting pan and toss with oil, salt, pepper, and rosemary until evenly coated. 3  Bake in preheated oven for 20 minutes, stirring occasionally.