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Category Archives for Optics

7 Best Camcorders for YouTube in 2024 – Reviews & Top Picks

Panasonic HC-X1500 4K Professional Camcorder on a bench

With the advanced capabilities of smartphones, just about anyone could use their device to become a successful YouTuber. If you want to elevate your videos on YouTube, it’s important to invest in the right equipment. Camcorders offer many advantages over a smartphone for producing professional, polished videos. These aren’t your 1980s camcorders—they’re small, lightweight, and […]

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Can Satellites See Inside Your House? History, Facts, & FAQ

an artificial satellite

Up until a few years ago, we didn’t even think that a satellite could generate signals that were strong enough to penetrate walls. We thought piercing through the atmosphere on a cloudy day (with close to zero visibility) was the best they could do. Well, that was way before our space-tech companies decided to push […]

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Can a Laser Pointer Start a Fire? Safety, Facts, & FAQ

green laser pointer

Perhaps your only encounters with a laser pointer are seeing someone use it during a presentation or a person teasing a cat with one. Even a small one has a relatively strong light. You probably know that a magnifying glass can start a fire by concentrating sunlight onto an object.1 It might make you wonder […]

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10 Interesting Facts About Light Waves

Light is vital to our existence, and it travels via energy waves called light waves. These waves are not only important because they enable us to see, but we use different types of light, which include radio and microwaves, for a vast range of different purposes. Below are 10 interesting facts about light waves. Top […]

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What Is the Refractive Index of Air? Everything You Need to Know!

Refractive Index

The refractive index is a critical value that reveals a lot about a medium and how light interacts with it; it determines how much light is bent or refracted when it enters a material. The refractive index is a crucial factor in any optical instrument’s components. It allows the construction of lenses, which focus light […]

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What Is a Speedlight and How Does It Work?

speedlight with a mini softbox to diffuse the flash light

If you’re trying to learn about photography, chances are that you understand how important lighting is. Lighting your subject or setting is crucial to achieve the proper exposure and look you want, so it’s only natural that you would want to control the conditions. In that case, you’ve probably heard about the speedlight or ‘speedlite; […]

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How to Use a Speedlight: 5 Tips and Tricks 

Speedlight

The speedlight is an indispensable photography tool that can seriously step up your imagery. Its convenience and ability to help with poorly lit scenes make it a no-brainer to bring along. But how do you operate a speedlight? Is it difficult to use one? To answer that, we’ll show you five tips and tricks for […]

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What Do All the Numbers Mean on a Spotting Scope?

an angled spotting scope

Spotting scopes are a great tool to aid you in viewing wildlife, looking up at the night sky, surveying an area, or seeing distant objects in great detail. When you look through your new spotting scope, you might notice a bunch of numbers that are shown on the viewfinder’s display. But what do all the […]

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How to Photograph a Sunset: 14 Tips & Tricks

sunset

Since the early days of color photography, people the world over have strived to capture the moment that the sun touches the horizon, and sets the sky on fire with red, purple, and apricot hues. If you’re wondering how you can capture the same magical moment in a timeless photograph, you’ve come to the right […]

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What Is Refraction? What Is Refractive Index?

pencil in a glass of water, refraction of light

Refraction is one of the most frequently observed phenomena; without it, our world as we see it now would be a haze. Refraction is the bending of light as it passes from one transparent medium to another due to the density difference between the two mediums. This bending of light makes it possible to have […]

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