Radio astronomy equipment

Ye Wenjie believes Radio astronomy equipment symbolizes hope for help with humanities problem, but it ultimately spells doom for humanity as it tells the Trisolarans where to find Earth.

Radio astronomy equipment is used by Ye Wenjie in her work as an astrophysicist. The equipment, which consists of a massive radio dish, towers, and transmission and monitoring equipment, is kept under careful lock and key at the Red Coast Base, where Ye Wenjie uses the equipment to work. Several years into broadcasting transmissions, Ye Wenjie receives a response from the Trisolaris civilization, which she in turn responds to, allowing the Trisolarans to trace Earth’s coordinates and set a course for the planet.

Pool balls

Pool balls are used not only in games of pool, but in the demonstration of a practical point that physics does not exist. Ding Yi plays a round of...