.
Index Gu
Guadua amplexifolia
Guadua angustifolia
Guadua longifolia
Guadua tagoara
Guaiacum officinale
Guaiacum sanctum
* Guccia, Giovanni
Gudermann, Christoph
Guettard, Jean Etienne
Guldberg, Cato Maximilian
Gum, Colin
Gum Nebula
Gunning transceiver logic (GTL)
Gunter, Edmund
* Guo Shoujing
* Gupta, Shanti
GUT ( Grand Unified Theory )
Gutenberg, Beno