atouchhereandthere:“The Library, at Dunham Massey,England, displays an orrery under a glass do
atouchhereandthere:“The Library, at Dunham Massey,England, displays an orrery under a glass dome. This is an old Georgian house which is under the auspices of the British National Trust for Historic Buildings.”An orrery is a mechanical model of the solar system, or of just the sun, earth, and moon, used to represent their relative positions and motions. -- source link