Complex sentence: Morley--type experiments as being mere artifact of aether-dragging, using an odd-reflection Sagnac interferometer that he could operate in the open, on a high hilltop with no temperature control, yet still achieve readings of 1/10 fringe accuracy.
Split into simpler sentences: Morley--type experiments as being mere artifact of aether-dragging, using an odd-reflection Sagnac interferometer. He could operate this interferometer in the open, on a high hilltop with no temperature control, yet still achieve readings of 1/10 fringe accuracy.