Potato batteries use the acids in the potato to start a reaction with two electrodes made of different metals that cause electrons to flow from one to the other through the potato, producing power. The potato acts as a salt bridge, connecting the anode, or negative electrode, to the cathode, or posi
Potatoes do eventually go bad. Their exact shelf life depends on the type of potato, but most go bad after two to five weeks at room temperature or two to four months in a refrigerator.
A potato that is sprouting can be planted in order to grow more potatoes, according to GrowVeg.com. Potatoes that haven't started sprouting, however, are dormant and won't grow until dormancy has been broken.
Potatoes that have green skin spots, are moldy or develop sprouts are potentially bad to eat. While moldy or mushy potatoes should be discarded, it is possible to save a potato with a green skin spot or sprout if this part is completely cut away.
There are 63 grams of carbohydrates in one large russet potato. A large sweet potato supplies about 37 grams of carbs. Both types also offer significant amounts of vitamin C and fiber and contain no fat.
Waxy potatoes that are low in starch are best for making potato salad. These types of potatoes include the red-skinned potato, yellow potato, fingerling potato, white potato and purple/blue potato.
To make Hellmann's potato salad, combine 2 pounds diced, boiled potatoes with 2 tablespoons white vinegar, 1 teaspoon sugar, 1/2 cup chopped celery, 1/2 cup diced onion and 1 cup mayonnaise. Add salt and pepper to taste, and chill the potato salad before serving if desired.
One easy way to make roasted potatoes is to cut small red potatoes into wedges, toss them with olive oil, then season them with salt and pepper. Spread the seasoned potatoes on a foil-lined baking sheet, and bake them for 40 minutes or until they're golden brown and tender.
To make a potato clock, connect two potatoes to a low-voltage LED digital clock with copper wire, galvanized nails and alligator clips. This easy chemistry project demonstrates the concept of electrochemical cells, in which chemical energy is converted to electrical energy.
Several varieties of purple potatoes come from the countries of Bolivia and Peru in South America. The different types of these potatoes include the Purple Majesty, Purple Viking and Purple Peruvian.