These are 170 constructed Triangulating the surface of the planet in all directions.
"The Birth-Time of the World and Other Scientific Essays"
J. (John) Joly
The most powerful, the most austerely imagined poem in this book is that entitled 'The Other,' which, apart from its intrinsic appeal, shows that Edward Thomas had something at least of the power to create the myth which is the poet's essential means of Triangulating the unknown of his emotion.
"Aspects of Literature"
J. Middleton Murry
He listened attentively to the reports of Triangulating observers, now giving him data covering his own missiles, as well as the target object.
"Triplanetary"
Edward Elmer Smith