*parabolic reflector: is a reflective device used to collect or project energy such as light, sound, or radio waves.
Download .pdf to print
Support Howtoon’s and visit the HT Store!
Project Summary: A very simple solar oven for cooking hotdogs, or roasting marshmallows, using aluminum foil as the focusing mirror.
Materials: deep bowl, aluminum foil, tape, hot dog
Tools required: scissors, thermometer
Science / Engineering / Art Concepts:
- Light travels in straight lines
- Specular Reflection: the angle of incidence is equal to the angle of reflection.
- Concentration of energy
- Solar energy
- Heat & energy conversion
- Optics, mirrors
- Paraboloids and focal points
Suggested reading material:
Golden Thread: 2500 Years Of Solar Architecture and Technology by Ken Butti and John Perlin
Solar cooking facts – solarcooking.org
Solar cooking recipes: