The small size and light weight of iPads mean they require less fuel to transport from factories to stores compared to larger computers.
Inventions And Technology - Facts for Kids

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Random Facts About Inventions And Technology For Kids
History & Development
The first microscope was invented around 1590 by Dutch eyeglass makers Zacharias Janssen and his father Hans, who discovered that combining two lenses could make tiny objects appear much bigger!
History & Development
The first digital thermometer, which shows your temperature like magic on a screen, was created by Robert W. Johnson in 1964. Before that, people used glass thermometers with mercury, which were tricky to read.
The average cloud weighs 1.1 million pounds (about 500,000 kilograms) — yet airplanes can fly right through them because the water droplets are spread out over a large area!
Quantum Internet is being developed that will be completely unhackable using the laws of physics!