List, 'Plans for improvements & experiments' by Robert Hooke Robert Hooke's 'To do' list; Theory of Motion, of light, of Gravity, of Magneticks [magnetics], of Gunpowder, of the Heavens Improving shipping, watches, Opticks [optics], Engines for trade, Engines for Carriage Inquiry into the figures of Bodys, Qualitys of Bodys [bodies]. Subject: Natural Philosophy 17th century