Frame captures 1.78 Madrid, the sculpture by Janet Echelman suspended on Plaza Major in Madrid, part of her Earth Time’s series, started in 2010. The number in the title, 1,78, refers to the number of microseconds that the day was shortened when a single physical event shifted the earth’s mass, thus speeding up the planet’s rotation of one day. 1.78 Madrid is a sculpture that marks the piazza built on the space of the old Piazza Arrabal that hosted the post popular market in the XV century, and reknown as the theatre of public executions, popular celebrations, such bullfights and religious events.