Scientists have ample evidence to prove the Earth is a sphere. But some social media users claim to have devised an experiment showing the earth is flat. The post shows a green laser beam projected ...

There are many glorious science-based terms when it comes to surfing. We all talk about swells, of course, the underwater energy that creates a breaking wave. But we'll look at swell angles and ...

A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...

The first law of refraction states that the incident rays, refracted rays, and the normal to the interface at the point of incidence, all lie in the same plane. The ratio of the sine of the angle of ...

Please provide your email address to receive an email when new articles are posted on . In last month’s issue of Primary Care Optometry News I editorialized about the importance of refraction in ...

For today's column, I'm building on previous discussions of botanical photography and incorporating new techniques that are still attainable with common household objects. Last month, I had intended ...

West Des Moines, Iowa – December 11, 2025 – PRESSADVANTAGE – In Modern Vision Center’s new article, Dr. Drew Dickson: Des ...