手搖電筒 、 太陽能計算機、Rechargeable batteries 的原理 (英文版)

Dynamo Torch - Shaking the Magnetic in the Dynamo Torch to induce a current in the surrounding coils, the current is then used to charge up the battery for torch light.
Solar calculator - The photon in light would ionize the atoms in the solar panel and make it polarized. The Polarized solar panel is able to supply current for usage.
Rechargeable Battery - Using external voltage could reverse the Redox Reaction of the rechargeable battery during discharge.

Explanation for solar panel is wrong.