17 Fantastic Optical Illusions And How They Work

Optical Illusion Definition & Types

Best light experiments explained

In 2025, optics experiments successfully trapped laser beams inside water droplets, creating a light show tiny yet mighty, visible only through precision instruments. In these intriguing experiments, scientists used the natural properties of water to confine light. By meticulously adjusting the angle and intensity of laser beams directed at tiny droplets of water, they achieved total internal reflection within the droplets. This phenomenon occurs when light hits a boundary at a certain angle, tr

"Optical testing is really exciting because we are using light - which is the fastest and most fascinating thing in this cosmos - and we are doing something practical that has real-world applications. It's not just the James Webb Space Telescope; it's also your everyday optics." The University of Arizona professor and #SPIE Fellow, Daewook Kim, can't wait to share his 20 years of knowledge of optical engineering and testing with you at #SPIEOpticsPhotonics! Learn more about his course and regist