chocolateeater writes: From a BBC article, scientists have developed a tiny generator that uses vibrations to power devices. This could come in handy where replacing batteries is difficult, such as in pace makers and wireless sensors. (My sore wrists only hope the weed whacker industry takes notice to this).
Take your work seriously but never take yourself seriously; and do not
take what happens either to yourself or your work seriously.
-- Booth Tarkington