This is a project that shows how people can use very simple web tools (+ creativity, +fun) to hack spatial data and build something cool out of it.The Size of Earth App Challenge involved building an application that would help people to rediscover the size of Earth. We thought that knowing that Earth has 40,030.2 km of equatorial circumference, 6,371.00 km of mean radius and 5,972,190,000,000,000,000,000,000 kg of mass is one thing, but knowing what these big numbers actually mean in such a huge universe like ours is also very important.
So first I've found data on the Solar System planets and the Sun at the Nasa Solar System Exploration website, scraped it using Google Spreadsheets and calculated the proportions necessary to make play-doh planets in scale. This became an open tool to calculate proportion between planets and the How to Make Play-Doh Planets Tutorial - How to find, get and use the spatial data you need.
I also joined the filmmakers Bruno Fernandes and Samanta do Amaral to make The Size of Earth Movie, using play-doh planets based on the data I collected before.