This cell phone was charged with apples, potatoes and copper wire

Londoners were amazed to see Friday how a Nokia Lumia cell phone was being charged by a strange gadget made of 800 apples and potatoes connected with nails and copper wire.

The functional art installation, by Caleb Charland, was created outside the Westfield shopping centre in Shepherd’s Bush, essentially just a large-scale version of the classroom science experiment where a single potato is used to power a digital clock.

The Nokia Lumia 930 is the brand new flagship smartphone running Windows Phone 8.1 — the most advanced Lumia yet.

See how this “organic charger” came to life: