We got some amazing winter conditions during our Winter Photo Workshop in Iceland...
Personalized emergency sirens
Why Does This Indonesian Volcano Burn Bright Blue?
Kawah Ijen's "Blue Lava" isn't the lava itself, but is due to the combustion of sulfuric gases in contact with air at temperatures above 360°C. There's so much sulfur, that at times it flows down the rock face as it burns, making it seem as though blue lava is spilling down the mountainside. But because only the flames are blue, rather than the lava itself, the effect is only visible at night—during daytime, the volcano looks like any other. And it was sooooo beautiful
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