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  • What is Electromagnetic Waves&How do electromagnetic waves travel?
    What is Electromagnetic Waves&How do electromagnetic waves travel? Jan , 15 2021
    Many people have questions about the relationship between electromagnetic wave frequency (wavelength) and signal coverage. Some people say that the higher the frequency of electromagnetic waves, the weaker the penetration, so the coverage is poor. So some people ask, X-rays and γ-rays are high in frequency, aren't they used for medical photography and metal equipment flaw detection? Some people ha...
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  • What is DCF signal?
    What is DCF signal? Jan , 15 2021
    Introduction of DCF Code The flingDCF transmission tower and spare transmission tower are located in Mainen (latitude: 50°01' N, longitude: 09°00' E), about 25km southeast of Frankfurt. Since 1959, DCF77 has served as a standard frequency. Since 1973, time and date information has been added. The DCF transmission power is 50kW and the transmission frequency is 77.5kHz.  The DCF signal is tran...
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  • Quick Guide To the Moon phases&How the Moon Affects affect us?
    Quick Guide To the Moon phases&How the Moon Affects affect us? Dec , 31 2020
    What Are the Moon's Phases?&Lunar phase changes First, from the perspective of our observation of the earth, the phases of the moon are roughly divided into four stages, namely the new moon, the first quarter moon, the full moon, and the last quarter moon.   Around the 30th or the first day of the lunar month, the moon is between the sun and the earth. People on the earth just see the dar...
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  • What are the benefits of graphene heating?
    What are the benefits of graphene heating? Dec , 25 2020
    Graphene generates heat through friction between carbon atoms and carbon atoms. This frictional motion is an irregular motion, also called Brownian motion. Therefore, the far infrared rays released by the graphene heating process are a kind of physiotherapy light that is beneficial to the human body. Why does the graphene heating temperature decrease when contact with the human body? Therefore, re...
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  • What is a decibel (dB)?
    What is a decibel (dB)? Dec , 23 2020
    Many people may think that the decibel is a volume unit. However, decibels are more than just used to indicate volume. In addition to dB, other units such as dBV, dBu and dBFS,  etc, they seem to be related to decibels, but what they are and what’s the difference? Here comes the answer below help you figure it out. The relationship between volume and decibels In daily life, when we talk about...
    hot tags : decibel dB volume
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  • What to know about True Wireless Stereo (TWS) Headphones?
    What to know about True Wireless Stereo (TWS) Headphones? Dec , 13 2020
    From Airpods first generation to today’s assortments of wireless headphone options, true wireless Bluetooth headphones have gradually replaced the previous integrated Bluetooth headsets, and becomes people’s new buying decision. However, can the headset replace the previous Bluetooth headset? What to know about it? This blog covers everything you need to know, including the principl...
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  • Apple MagSafe: Is Magnetic Wireless Charging The Future?
    Apple MagSafe: Is Magnetic Wireless Charging The Future? Dec , 06 2020
    On October 14, 2020, Apple held a global online press conference and released the long-awaited iPhone12 series of mobile phones. The models include iPhone12, iPhone12 mini, iPhone12 Pro, and iPhone12 Pro Max. For the first time in the history of iPhone, the entire series supports 5G. It supports 20W PD wired fast charging and brings the brand-new MagSafe magnetic wireless charging technology, mark...
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  • Everything you need to know about Qualcomm Quick Charge
    Everything you need to know about Qualcomm Quick Charge Nov , 20 2020
    When we use a power adapter that supports PD or QC fast charging protocol to charge digital devices, you may not realize how long the fast charging standard has gone through. Understanding Fast Charging The contradiction between computing performance and improvement and the stagnation of battery technology has long been the original demand of digital product users (especially smart phone users) fo...
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  • Introduction to SLA 3D printing&how does SLA work?
    Introduction to SLA 3D printing&how does SLA work? Nov , 13 2020
    What is 3D printing? Three-dimensional light-curing 3D printing (often referred to as SLA) is one of the most popular and common technologies in the field of additive manufacturing. It works by using a high-power laser to harden the liquid resin in the container to produce the desired 3D shape. In short, the process uses low-power lasers and photopolymerization to convert photosensitive liquids in...
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