At one point John says: "Diffraction gratings work like rainbows". What did he mean to say?
Why is white light considered a biological phenomenon?
Can our eyes detect any electromagnetic radiation?
How does a microwave oven work?
What is the "hertz" a measure of?
What generates electromagnetic radiation?
What is generated from the vibration of a magnetic field?
What is electricity?
The atomic mass unit is equal to
What is an isotope?
