can be observed with

URI: https://gptkb.org/prop/can_be_observed_with
4 triples
GPTKB property
Random triples
Subject Object
gptkb:transit_of_Venus pinhole projector
gptkb:transit_of_Venus gptkb:astronomer
gptkb:transit_of_Venus gptkb:solar_filter
gptkb:Solar_eclipse solar viewing glasses