An online HTML5 Fourier synthesizer app is provided that allows students to manipulate sixteen harmonics and construct periodic waves. Students can set the amplitudes and phases for each harmonic, seeing the resulting waveforms and hearing the sounds. Five waveform presets are included: sine, triangle, square, ramp (sawtooth), and pulse train. The…

Solar current is an increasingly important aspect of modern life and will be even more so crucial in the students' future. Encouraging students to be the "toolmakers" allows students to take ownership of scientific investigations, as well as forcing them to refine their research questions and hypothesis, including the design and…