People in the world
There are 7,000,000,000 people in the world.
Some of them do interesting things every day, like interesting but bad things every day, like smoking a packet of cigarettes, drinking 2 bottles of wine, eating about 1 kilogram of junk food and necessarily, shouting and harming others. Why do people let these things happen in their lives and some people every single one daily?
Some people do the complete opposite. They are the ones who I must say lead better lives and are more inspiring. I am not saying if you do one of those bad things that I am trying to be mean to you, but they are not things I am going to do.
If all 7,000,000,000 of us did the complete opposite of my list of bad things, then it would be a wowed down very amazing world. I would want to live there.
How do machines work?
Machines work in many different ways. Some of them, like in the picture, are quite small, but some are enormous.
The picture beside is a complicated mix of cogs, springs and wires. When you press a button on one end, it sets off a spring which pushes into a wire at the other end and moves the electricity onto a screen which shows what you have asked for by pressing that button.
The way the electricity is transported is pretty simple. The electricity is moved around cogs which makes it more active and gives it the right information to show the right character on the screen and that is why the screen never shows a mistake of what you have pressed.
This loom is also a mix of cogs and springs, but does not use electricity to make it move. Instead, it uses energy from your hand on the material that goes in one side as thread and comes out as fabric.
The pattern is made by tiny metal sticks that are extremely close together and move very fast to make the pattern that you want to make.
The way that it makes the fabric and the thread move is the springs and the cogs. The springs and cogs take energy from your hand and the precise attachment of the springs to the cogs make the cogs move and the fabric moves, which moves the machine.