横浜市英語塾 Lights and shadows are ridiculously cool | 横浜市で展開されている英語塾では外国語やビッグヒストリーにまつわる記事を公開中

All three colors combined create white.  The opposite of what a prism does.

The shadows the same as the expensive ink we put into our color printers.

The overlapping shadows give us all the other colors!