How Do Insects Breathe?
How Do Insects Breathe? As insect does not have lungs for breathing air, as people do. Instead, an insect breathes through tiny holes called spiracles which run along...
Read MoreHow Do Insects Breathe? As insect does not have lungs for breathing air, as people do. Instead, an insect breathes through tiny holes called spiracles which run along...
Read MoreWho Invented the Pneumatic Tire? John Boyd Dunlop (1840-1921) was a Scottish veterinarian, and the recognized inventor of the first pneumatic or inflatable tire. His...
Read MoreHow Does a Siphon Work? A siphon is a self-powered pump. Fill a rubber tube with water and pinch the ends to keep the water in. Put one end in a glass of water on a...
Read MoreHow Are Toothpaste Tubes Filled? To get toothpaste out of the tube to brush your teeth, you squeeze the tube. But how does the toothpaste get inside the tube? The...
Read MoreHow Do Microwave Ovens Work? In a microwave oven, you can cook a hamburger in only four minutes. Conventional ovens cook food by heating air which, in turn, heats the...
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