They aren't made, they just are.
Leonardo da vinci
I think the robot you are after is ASIMO.
Dirt and water can be mixed in a hole in the ground to make adobe bricks. The dirt needs to have clay in it to resist moisture and provide support in the brick, but too much clay will make the bricks...
The first solar cell was made by Charles Fritts in 1883. He created junctions by putting a very thin coat of gold on selenium.