These panels replace the electricity used for the operation of the stairs and luminaires of the system by 21%, according to the Mayor's Office of Medellín. In addition, the administration assured ...

An electric wheelchair that can climb most stairs, including spiral staircases, has been developed by Zurich-based students. Produced by Devan Joseph Follow BI Video: On Facebook ...

A new type of electric wheelchair that is able to go over uneven terrain and even down stairs is seeking crowdfunding online. The Scewo wheelchair – a prototype for now – contains self ...