put them in cold water
You can keep a cup cold by using a double-walled insulated cup, adding ice cubes, or placing the cup in the refrigerator or a cooler. Additionally, using a coaster or a sleeve can help insulate the cup and keep it cold longer.
The exact number of sugar cubes that can be dissolved in cold water depends on the size of the sugar cubes and the volume of water, but generally speaking, you can dissolve 1 sugar cube per 1 ounce of cold water. Keep in mind that the solubility of sugar decreases as the water temperature decreases.
Reusable ice cubes are typically filled with distilled water or a non-toxic gel (such as polyethylene glycol) that can freeze and keep drinks cold without diluting them as traditional ice cubes would. Some reusable ice cubes are also filled with a non-toxic gel that can retain cold temperatures longer than water.
because it is stupid
One way to keep something cold without a cooler is to wrap it in insulating materials like towels or blankets and store it in a cool, shaded area. Another method is to bury the item in the ground, as the earth's natural coolness can help maintain its temperature.
You can keep your dogs' water cold outside by using an insulated water bowl, adding ice cubes to the water, or placing the water bowl in a shaded area to prevent it from heating up in the sun.
The best insulation for cold weather to keep you warm and comfortable is typically materials like wool, down, or synthetic fibers such as Thinsulate. These materials trap heat effectively and provide good insulation against the cold.
To prevent ice cubes from melting quickly, use an insulated cooler or container to store them, keep them in a freezer until right before use, and avoid opening the container frequently. Additionally, you can try using larger ice cubes or ice packs to slow down the melting process.
Maybe a freezer? OH! How about a fridge!
To keep the cold out during winter, you can cover windows with insulating materials like thermal curtains, plastic film, or weatherstripping. These help to create a barrier against cold air entering your home.
Because polystyrene has certain thermal properties that can be used in order to store things and maintain their temperature. When you store ice cubes in polystyrene containers they won't melt and they'll keep cold because the cold they'll generate in the container won't escape, and the heat from outside won't come in.
Because all penguins were born in cold climates, and that is their natural breeding grounds. Even zoos keep it cold for them, because that is what their bodies are adapted to.