Focus, Under Fire

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

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.

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