Heating demands for the coldest winter from December to February is a life concern for everyone. However, not just indoor heating, people nowadays pay more attention to mobile heating. What are those mobile heating products? Is the heating effect good enough? Go ahead and read this article. In the past years, we all used to warm up our body with...

We always say that noise makes people sleepless and upset, but there is a kind of noise that has a complete "reverse effect". It can make most people sleep sweeter, more concentrated and emotionally stable. So what kind of noise can have such a magical effect? It is the sound of falling rain on a rainy day, the sound of running water in the moun...

What is Electromagnetic Waves&How do electromagnetic waves travel? 15 Jan 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, ...

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 transm...

Quick Guide To the Moon phases&How the Moon Affects affect us? 31 Dec 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 30...

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 volu...

Introduction to SLA 3D printing&how does SLA work? 13 Nov 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 desire...

In recent years, Type-C has attracted much attention due to its "fast, strong, and small" characteristics. Now more and more products begin to adopt Type-C interface, and in the future, Type-C will also unify the interface world. So, what exactly is this Type-C? What is Type-C? Type-C stands for USB Type-C interface, which is a form of USB inter...

Principle of light guide plate LCD light guide plate lighting technology was first invented by Japan mingtuo company in 1986, known as edge light, which is the mainstream method of notebook computer LCD backlight lighting. Its working principle is that the pure white light emitted by the cold cathode fluorescent tube (line light source) is intro...

There is a very important circuit in the design of the display driver board-the backlight driver circuit, which is also a basic circuit that troubles many engineers. This article will tell you in detail from the backlight unit composition to the backlight circuit design by analyze this circuit step by step. First look at the picture below. The a...