Impossible objects #5: Street Power

A good one from David Mery, captured on Ganton Street, London W1.

Any suggestions for what unfeasibly large object this switch is powering? And should it have been left plugged in?

See the full image (and the rest of his Flickr stream is well worth checking out).

Previous Impossible Objects we’ve covered:

• the infinite tap
• the simplified calculator
• the electric hammer
• the signature coffee pot

(All from the Catalogue of Impossible Objects by Jacques Carelman)