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Why is the Night Sky Dark?
If the universe is infinite and filled with shining stars, we might expect a continuously bright sky. Why then is it dark at night?
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Redisrupting Routes - GPS Signal Interference
GPS jamming to confuse the enemy - learn about GPS interference tactics and countermeasures.
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Science Panorama
Medical Imaging Technologies - Seeing the Invisible
Sound waves, X-rays, MRI and much sophistication: medical imaging technologies enable us to see deep inside our bodies
