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How did we aim the mirror?
Once the mirror
was made and the kettle fixed in place, we needed a device to keep
the mirror pointed at the sun as it travelled across the sky.
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.
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