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Category Archives for Optics

10 Best Ocean Wave Light Projectors in 2024 — Reviews & Top Picks

little boy holding a light projector

An ocean wave projector can add a great ambiance to a room. It’s also a great way to calm nerves or simply mix things up. But while the right ocean wave light projector can do just that, the wrong one will leave you extremely disappointed. Even worse, it might break on you right after you […]

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Refraction vs Diffraction:  What’s the Difference?

refraction and diffraction as laser beam moves through crystal

We usually think of different measures as specific quantitative types, such as degrees, feet, or pounds. When speaking of energy, the common denominator is waves, whether it’s sound, light, or electromagnetic sources. The terms refraction and diffraction describe their behavior. They provide the basis for quantifying them and making them meaningful in their respective fields. […]

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DJI FPV Drone Review of 2024 – Pros, Cons, and Verdict

DJI FPV Drone Review Featured Image

Review Summary First-person view drones (FPV) were once the realm of hobbyists with enough time to create their own. DJI’s entry into the hobby makes it more accessible to everyone, which means making exhilarating fun and beautiful videos possible for everyone. It costs a fair bit, but the drone is well-built, and the camera captures […]

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Merkury Doorbell Camera Review of 2024 – Pros, Cons, and Verdict

Merkury Doorbell Camera review

Review Summary The Merkury Doorbell Camera is an affordably priced product for buyers who have an existing wiring system and want to explore the Internet of Things (IoT) for optimal security. Its reasonable price point is its best feature. The New York-based company specializes in various electronics, including speakers, earbuds, and this new venture into […]

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What Is the Refractive Index of Oil? Understanding It Thoroughly

person using refractometer to measure refractive index of oil

Oil is a nonpolar liquid, meaning its molecules do not have a net electric charge. Because of this, it does not interact with light in the same way that polar substances do. Instead, oil scatters light in a way that creates a shimmering or iridescent effect. The refractive index of oil is lower than that […]

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What Are Light Diffraction Glasses? How Do They Work?

light diffraction glasses pinholes

The properties of light, such as refraction, diffraction, and reflection, impart particular characteristics to light. But these same properties can also be harnessed for other purposes, such as fun optical effects or more practical applications like eyeglasses. One common lens type that uses these properties is the diffraction grating lens or light diffraction glasses. These […]

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Constellation vs. Asterism: What’s the Difference?

Constellation vs Asterism

Constellations and asterisms are both groups of stars, but there is a minor difference between them. However, before the 20th century, these terms were used interchangeably for star patterns. The International Astronomical Union (IAU)1 adopted 88 modern constellation boundaries in the 1920s. After that, constellations became specific star areas in the celestial sphere. On the […]

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21 Interesting Lyra Constellation Facts, Myths, and FAQs

Lyra Constellation

Are you the type of person who loves spending time outdoors looking up at the stars? If you are, then you have probably seen the constellation Lyra at some point. Even if you’re not an astronomy enthusiast, you may have heard of it before, as it is part of the 88 constellations that were identified […]

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How to Photograph Stars and the Night Sky: 10 Tips & Tricks

man watching stars using telescope

Photographing the night sky can be a perfect challenge for beginner photographers looking to improve their skills. It’s a good way to learn about your camera and can result in an amazing photograph. Keep reading for several tips and tricks to help you get a great picture of the night sky with almost any digital […]

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What Does E. Coli Look Like Under a Microscope?

man using microscope

It has the power to cause severe diarrhea and vomiting, and is often found in raw, unpasteurized milk, and animal feces. It’s invisible to the naked eye, but what does the mysterious E. Coli look like under a microscope? Escherichia Coli, named after Theodore Escherich, who discovered the genus in 1885, can appear in food, […]

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