It's the flooding problem most of all. I'm in one of the few Manhattan co-ops that still allows washing machines and dryers and it's a wonderful thing to have it in my apartment. But many landlords, co-op board and condos don't permit them because of the flooding.
A couple of my friends and I made hot ice for our school science fair. We used sodium acetate. This project won first place at my schools science fair!!! Materials: Stove. Pot. A spoon. A glass cup. and Sodium acetate (you can find it online or in certain heat packs). How to do it: You heat water in a pot and put the sodium acetate in the water.
1 When using dry ice for cooling foods, place the dry ice in the BOTTOM of a cooler, refrigerator, or insulated container. 2  Do not allow foods to have direct contact with the dry ice. 3  Place an insulating material â such as cardboard â between the dry ice and food. 4  Do not put dry ice in your drink. When using dry ice to keep foods frozen, place the dry ice ON TOP of the items you want frozen. 2  A small block of dry ice (5 to 7 pounds) wrapped in an insulating container has an effective cooling time of 18 to 24 hours.