No, I didn't make my solar car yet. But I made an invention today.
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I invented... The TELEGRAPH!
The electric telegraph [was first] invented in 1832...
-Wikipedia
Okay, I didn't invent it before anybody else did, but I invented it.
Let's take a closer look at it.
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| A diagram of an electromagnet. |
That thing that looks like a red tube is just a 16-inch nail with a magnetic wire twirled around it one hundred times. We stuck it on packing foam and left some wire at either end dangling to complete a circuit with a battery.
That made it AN ELECTROMAGNET.
(not a telegraph)
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To make it from an electromagnet into a telegraph I had to make it like
<------------this.
After sandpapering the wires, looking for the "true connector wire," twisting paperclips, and making a key, the telegraph was ready.
I pressed the key down.
That would complete an electromagnetic circuit which would make the nail magnetic. The clicker would be attracted towards the nail, and that would make a sound.
Click!
