I am in this! I put the last piece in and I was in the picture at the end (right side, behind the person with the blue coat. My coat is still on, and my hood is still up). I did not put any marbles in or turn it.
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The Chicago River Lock
The Chicago River runs backward. It used to go into Lake Michigan, but using a lock, the flow was reversed! The flow was changed because the dirty river was dirtying the city’s clean drinking water. The Chicago Harbor Lock is important to the people in Chicago. A lock helps boats…
Continue readingThe First Airplane
The First Airplane The Wright brothers, who were named Orville (1874-1929 in Ohio) and Wilbur (1867 in Indiana to 1912 in Ohio), invented the first airplane. Before they tried flying, they built bicycles and unique kites. The brothers began testing gliders for people in 1900. They successfully flew for the…
Continue readingHow a Round Squeeze Handle Disher Portion Scoop works.
In a Round Squeeze Handle Disher Portion Scoop, you squeeze the handles so the gear turns on the teeth, and since the gear is connected to the rod, the rod turns and since the rod is connected to the cutter, the cutter turns and pushes the stuff in the ball out! Finally,…
Continue readingHow a Light Switch Works
When you flip a switch, you close the circuit so now the circuit looks like this: Closing the circuit, you connect the wire with the rest of the circuit! But why couldn’t you turn on the light before? Before the circuit looked like this:Looking at this diagram, we can see that not…
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