A large block of mischmetal, a mixture of lanthanum, cerium, and a few other random rare earths. Blocks like this are used for spark effects in movies. It is incredibly sparky stuff, here I'm holding it up to a small grinding wheel. The Spin and Rotate videos show this in action.
Dan The Produce Man from Dan's Fresh Produce in Alameda, CA tells us how we can keep lettuce fresh for 3 to 4 weeks in the refrigerator. Dan The Produce Man from Dan's Fresh Produce in Alameda, CA tells us how we can keep lettuce fresh for 3 to 4 weeks in the refrigerator. Category Entertainment
Times are based on a refrigerator set at 40 degrees Fahrenheit or colder. Shelf life also depends on the freshness of foods at the time of purchase. 1  Cheese, hard: six months. 2  Butter: 1 to 3 months. 3  Olives and pickles: one month. 4  Fresh eggs (in shell): 3 to 5 weeks. 5  Cheese, soft, unopened: 3 to 4 weeks.6  Cheese, soft, opened: 1 to 2 weeks.7  Bacon, cooked: one week. 8  Hard-boiled eggs: one week.imes are based on a refrigerator set at 40 degrees Fahrenheit or colder. Shelf life also depends on the freshness of foods at the time of purchase. 1  Cheese, hard: six months. 2  Butter: 1 to 3 months. 3  Olives and pickles: one month. 4  Fresh eggs (in shell): 3 to 5 weeks. 5  Cheese, soft, unopened: 3 to 4 weeks.