Focus, Under Fire

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This, is awesome: Two square meters of sunlight, focused to a single point and it’s hot enough to melt literally any known material.


http://www.youtube.com/watch?v=z0_nuvPKIi8

I’d wager that most people don’t know how much energy it takes to melt steel or rocks, but how much it takes to get a fire going in the fireplace — that’s something I’d bet many more people could get their minds around.

Just look at how quickly the 1×2 is inflamed! It’s not just fast — it’s instant! There’s no heating period. No tinder, spark, or additional fuel.

Now that would be a neat tool to have available for the next family BBQ.