Ephemeros for

Schools & Citizen Science

A real scientific instrument your class can run with a phone.

Explore the map

Pick a fixed viewpoint

A “spot” is a documented frame — coordinates, compass heading and tilt — that anyone can find again.

Line up with the ghost

The previous photo floats over your camera so every capture matches the original framing exactly.

Watch change unfold

Aligned photos become a timelapse — and an open, research-grade record of how the place changes.

Citizen science works best when the task is simple, the result is visible, and the data is real. Ephemeros is all three: stand on the marked viewpoint, line up the ghost, take the photo. Done — one more frame in a genuine long-term observation record.

For schools and youth groups, a spot on the school grounds or a nearby green space becomes a running project that outlasts any single class: the pond through the seasons, the street trees leafing out, the construction site next door rising.

In the classroom

Geography & environmental science — landscape change, seasons, weather, urbanisation, all observed first-hand.
Data literacy — the series behind the timelapse is a dataset: dates, locations, orientations, alignment scores.
Continuity across years — each cohort inherits the record and extends it; the timelapse becomes school history.
Zero equipment budget — one shared device is enough, and contributions are reviewed before publication.

Twenty years from now the school's spot archive will be the best local-history resource in town. It starts with one photo.