Sources
Where the ideas come from
This site is the family lobby: a 3D hall that points at the exhibits.
This lobby
Many Beginnings is a hall, not a classroom of citations. The pictures and type here are our own. This page does not list weather services, map tiles or device sensors, because this lobby does not use them.
The space exhibit
Your Place in Space keeps its own sources — the rooms, the weather call, the map tiles — on that site.
The music exhibit
The intervals exhibit keeps its own sources on that site.
The other exhibits
Mathematics is next. Those exhibits will name their sources on their own sites when those pages exist.