The parallel projection:
Stephen Hawking's 'suspended' lab, with two 'subtracted apertures' representing two viewpoints out into the environment - one facing the sunrise, the rear one facing the sunset.
Charles Darwin's distinctive courtyard space to the left immerses itself in the landscape. This is in visual opposition to Hawking's detachment. Darwin is entirely concerned with the study and observation of the natural world, and he undertakes this in close proximity to his subject matter. Hawking, in contrast, is forever trying to reach out and comprehend a place - perhaps even time - that is daunting and almost terriying in its complexity.