Levers make it easier to lift big and heavy things. They can also help you pick up things you can’t quite reach. This alligator long-arm uses pairs of levers to make other levers move. Use the ruler…
Four wheels, a box, and a handle. That’s all a wagon is. But with a wagon you can easily carry a couple of friends or a load of empty bottles—or even give the dog a ride. When you use a wagon, a…
> by Robert Louis Stevenson > by Marchette Chute In winter I get up at night And dress by yellow candlelight. In summer, quite the other way, I have to go to bed by day. I have to go to bed…
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