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Radar waves can pass through many substances (they appear transparent like glass) but are reflected efficiently by metals (which act more like a mirror to radar).

Thus if you want to confuse a radar system you can scatter a mass of thin, light aluminium confetti in the air and this will appear as a fog, hiding the target (your plane) from the enemy. Aluminium is used because it is a light metal that can be made into thin sheets or ribbons (aluminium foil).

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7y ago

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Q: Why can aluminium jam radar?
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