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In what direction was the parabolic mirror positioned?

Once the mirror was made and the kettle fixed in place, we needed a device to point it into the sun. As the sun travels across the sky it takes different angles from east to west and also different angles above the horizon. We made a mount for the mirror that had one axis pointing parallel to the axis of the rotation of the earth and the other set once to the position of the sun.

All we had to do was set up the mirror for the particular day and just turn the apparatus around the one axis for the contraption to follow and scan with the movement of the sun ­ this is called an equatorial mount. This allowed us to follow the sun and get the most energy and efficiency from the system.

Diagram showing the positioning of the parabolic mirror in relation to the sun and equatorial mount
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Solar Distillation Challenge 1 2 3 4 5 6 7 8

 

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