The type and size of air conditioner you need depends on your climate and cooling loads. Evaporative coolers are practical in hot, arid regions such as the southwest. For other regions, compressor-driven air-conditioning systems …

Humans’ love of flowering bulbs goes back to prehistoric times. Ancient Egyptians planted onions, and early civilizations on the Mediterranean island of Crete prized saffron from a variety of crocus. During the 1640s, tulips were …