The application of mobile computing is currently altering patterns of our behavior to a greater degree than perhaps any other invention. In combination with the introduction of power efficient wireless communication technologies, such as Bluetooth Low Energy (BLE), designers are today increasingly empowered to shape the way we interact with our physical surroundings and thus build entirely new experiences. However, our evaluations of BLE and its abilities to facilitate mobile location-based experiences in public environments revealed a number of potential problems. Most notably, the position and orientation of the user in combination with various environmental factors, such as crowds of people traversing the space, were found to cause major fluctuations of the received BLE signal strength. These issues are rendering a seamless functioning of any location-based application practically impossible. Instead of achieving seamlessness by eliminating these technical issues, we thus choose to advocate the use of a seamful approach, i.e. to reveal and exploit these problems and turn them into a part of the actual experience. In order to demonstrate the viability of this approach, we designed, implemented and evaluated the Ghost Detector - an educational location-based museum game for children. By presenting a qualitative evaluation of this game and by motivating our design decisions, this paper provides insight into some of the challenges and possible solutions connected to the process of developing location-based BLE-enabled experiences for public cultural spaces.
 Since 2000, Human Computer Interaction (HCI) has seen a turn to the artistic, looking at more provocative, cultural and social experiences. In doing so HCI is increasingly collaborating with artists who engage with real world data. Much of this work focuses on engaging the public in the spectacle of interactive experiences. In contrast, this paper takes a look behind the scenes by studying a collaboration between artists, climate scientists and researchers as they designed a participatory sensing system to interpret scientific data for public presentation. This paper presents this cross-disciplinary approach from the perspective of an artist researcher on the project. The deployment of mobile and ubiquitous computing in smart objects introduces the concept of an Internet of things which will offer new scenarios for learning processes. This paper presents this concept in relation with some other new alternatives of spaces for learning. A basic architecture for interaction is proposed and a set of prototypes that we have developed are also explained as part of an early infrastructure.