In this video, I show you how to create your own rainbow using just a glass of water, a flashlight, and a piece of white paper. It’s an easy and fun science activity you can try at home! By exploring ...

The National Medical Commission (NMC) has released the official NEET UG 2026 syllabus, outlining the topics to be covered in ...

Explores the principles of light, reflection, and magnification through hands-on experiments. Children observe how a magnifying glass focuses sunlight to create heat, examine the effects of light on ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

One key challenge in medical imaging is to look past skin and other tissue that are opaque to see internal organs and structures. This is the reason we need things like ultrasonography, magnetic ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Abstract: The optical and structural properties of boron nitride nanotube (BNNT) assembly were characterized using optical fiber Bragg grating (FBG) sensors. FBGs were fabricated in tapered fibers ...

High refractive index polymers (HRIPs) are essential for manufacturing modern optoelectronic devices, including displays and light sensors. However, high-performance HRIPs are expensive and ...

The Brix scale, derived from the refractive index of a solution at 20 degrees Celsius (68 Fahrenheit), is widely known. Originally, it was established by determining the weight percentage of sucrose ...

The refractive index, also known as the index of refraction, is a measure of how light travels through a medium – typically a solid, liquid or gas. This property can be quantified by examining the ...

The speed of light is one of the most fundamental constants in physics. It plays a significant role in various scientific concepts such as relativity and electromagnetism. Measuring the speed of light ...