Physics could soon make it possible to replace those bulky, heavy, glass lenses on the front of cameras with wafer-thin "metalenses."
How exactly do the stars twinkle in the night sky?As it turns out, the answer is full of hot air... and cold air.
Join Adabot as he learns about electromagnetic energy with the help of a new friend - Mr. Heinrich Hertz.
Sign Up now to share your Curiosity
