There are the examples to the side as steveastrouk pointed out however there are two other methods that come to mind that I have seen before one being a concave mirror reflected into a metal container, and the other a concave lens concentrating the sunlight to a point much like the mirror method.
Discussions
8 years ago
The lid off your wock carefully covered in aluminium foil OR many small bits of mirror.
You will soon find out where the focal point is.
8 years ago
In addition to the many good instgructable on this site, here is a link to a website that has several solar oven designs.
http://solarcooking.org/plans/
8 years ago
There are the examples to the side as steveastrouk pointed out however there are two other methods that come to mind that I have seen before one being a concave mirror reflected into a metal container, and the other a concave lens concentrating the sunlight to a point much like the mirror method.
8 years ago
Take a look at the right hand side of this page.....>>>>>>>>>>>>>