Melting requires energy: the heat energy in your drink is used to melt the ice.
Swirling mixes the warmer water near the glass edge with the cooler water next to lumps of ice. This has the effect of melting the ice faster AND making the glass colder.
keep it in the cooler
Yo keep it in the freezer or if it's a sunny day or warm. Keep it in a cooler
Melting ice stays at the same temperature until it is all melted to water.
Put ice in reflective containers. Even placing ice next to items that are merely cooler than the room or outdoor temperature can slow the melting time. Use insulators. Keeping ice lower to the ground will also help, as heat rises and the ground stays cooler. The larger the pieces of ice you have, the longer they'll last. Ice cubes in light colored and white containers will stay cooler.
Melting is a physical change.
Ice cubes explode in a drink because they are melting at a fast rate. The ice cannot contract fast enough to keep up with the melting, which causes it to crack.
Salt does not make ice cooler; it lowers the freezing point.
Pour salt on it; it will postpone melting.
Layers of newspaper can act as a primitive cooler if you wrap ice in them. The more newspaper, the better, but it won't keep it from melting as long as a styrofoam or plastic cooler would.
No. The ice melting is a physical change.
Put it in a cooler of ice. Or if you don't mind not being able to drink it, place it in liquid nitrogen. I recommend the cooler of ice.