Drawing with light during Earth Hour created a photographic artwork solely in the glow of solar light emitted by Consol Solar Jars. The backdrop was beautiful, set at Nizamiya Turkish Masjid (Turkish Mosque) in Midrand, near Johannesburg. Professional photographer, Peter Hassall, magically captured the word, Earth Hour, in solar light.
The word photograph derives from Greek:
phos = light
graphê = draw or write
phos + graphê = drawing with light = photograph
Nine people lined up in the camera frame. Each wrote a letter spelling Earth Hour backwards with a Consol Solar Jar in their hand so that it appeared right reading and pointed directly at the camera. The exposure was 15 seconds and they had to move the Consol Solar Jar in as wide an area as possible. If you look behind each letter, you will see the ghosted figure of a person holding their Consol Solar Jar.
With all the interior lights switched off during Earth Hour, 12 Consol Solar Jars were placed upside down to shine up and light the archways, balancing the interior exposure with the exterior lighting of the clouds and turrets. The contact sheet shows four images:
Top left: all interior lights turned off.
Top right: six jars turned on to light right-hand side.
Bottom left: additional six jars turned on to light left-hand side.
Bottom right: final pic.