👤 PersonNicolás de Cusa1401–1464 · ItalyWikipediaWikipedia (es)Wikidata🌍 View on the globeInventions and discoveries · 2c. 1450Concave spectacles for myopiaInvention or technique · inventorc. 1480 (Leonardo) / 1664 (Hooke) / 1783 (Saussure)HygrometerScientific instrument · inventor
