Many people often have the habit of charging their phone battery with a computer, but not everyone knows how to properly charge a phone with a computer.

Charging the phone with a laptop is the process of connecting the phone to the laptop with a charging cable through the USB A or USB C port on the computer. This process uses the computer’s power and output to refill the phone’s battery.

To protect the safety of phone devices, it is best for users to limit charging the phone battery with a computer. When it comes to charging your phone, if you have access to a traditional phone charger, it is recommended that you use it instead of charging your phone via a computer. 

Only in situations where you do not have access to another phone charger should you consider using this method. Nevertheless, if you must charge your phone battery using a laptop, it is crucial to do it correctly to prevent any potential harm to the battery. Here are some guidelines to properly charge your phone battery using a computer.

Instructions on how to properly charge your phone using a computer:

1. Do not unplug the phone as soon as the battery is full

When charging the phone battery with a computer, if the device indicates that the battery is 100% full, do not rush to unplug the charger immediately, but plug it in for another 30 minutes. The reason is, the actual charging capacity of the computer is only about 95%, so if you continue to plug in the charger a little longer, it will help your phone battery last longer and help prolong the battery life.

2. Pay attention to the laptop’s battery

Make sure your laptop has enough battery left to make the phone power supply more stable.

3. Do not plug the phone next to the computer cooling fan

This will prevent the phone from heating up during the charging process.

Read more:

• Camera history: important milestones
• Discover a unique old house hidden in a mountain

4. Charge your phone with a trusted computer

If you need to charge your phone, then you should choose a reliable computer to plug it in to avoid the risk of your phone getting infected with a virus.

When charging your phone using a computer, it is crucial to select a trustworthy computer to prevent potential security threats. Specifically, connecting your phone to a computer using a USB cable can create a pathway for viruses to infiltrate your device.

The best way to charge a new phone battery to avoid battery bottles

According to experts, since 2016, all phones on the market have used Li-ion batteries to replace old batteries. With this change, phone manufacturers no longer insist on new phones being charged for 8 hours as before.

Manufacturer Sony advises users when buying a new phone, do not need to charge the battery for the first 3 times for 8 hours because that is “not really necessary and does not bring any effect”.

When you first buy a phone, you need to use up all the available battery until the battery indicator is low (usually below 20%), then charge the phone. Do not charge immediately upon purchase and do not let the battery drain to 0% the first time you use the device.

Tips to increase phone battery life

In the first 3 to 5 times of using the device, it is recommended to charge until the battery is 100%, then wait another 5 minutes and unplug the charger from the outlet. After that, use it until the battery indicator is low, then continue to charge. 

At the end of the first 5 charges, users can comfortably use it. However, you should avoid charging the phone while using it, charging it overnight or letting the battery drain before charging because that will affect the life of the battery.

• In order to properly charge the battery, in the process of charging the phone, you should pay attention to avoid the situation of both charging and generating electricity, that is, while charging and using the phone.
• To optimize your device’s battery life, it is recommended to disable features that consume power when not in use, such as Bluetooth. Additionally, deactivating the ScreenSaver animation and running text can help conserve energy. If available, utilize the Standby function to minimize energy usage during idle periods. By implementing these actions, you can improve your device’s battery performance.
• Besides, the screen brightness should be set to medium and the screen should be turned off after about 10 to 15 seconds of not using the device. Turn off applications running in the background such as games, applications and Wifi. You also need to keep the bell low and vibrate when not needed. In addition, you should leave the wifi activated mode manually, check the device and the network regularly, the weak network will emit stronger energy to re-detect the wave.
• It is recommended to use the original charger that came with the device to ensure the quality of the battery.
• Limit the use of both charging and using the phone to play games, surf the web, Facebook, watch YouTube,… This causes the phone to heat up and there have been cases where the phone exploded due to use while charging.
• You should not let the battery drain for a long time because it may lead to the battery no longer receiving a charge.

Above is the best way to charge the phone battery to avoid a battery bottle. If you stick to these things, you already know how to use and make sure your phone is working at its best.

Source:

• Battery charger

Since the late 11th century, humans have been using a rudimentary type of camera known as a “dark chamber”. It allows your to print the images on paper, then through a few processing stages we will get the exact image of the object.

History of the camera

The camera is an extremely important and creative invention in human history, so far this machine has been constantly improved in all aspects to bring users convenience, modernity and even life. more fashion. Thanks to the appearance of photographic equipment, a popular art field was also born, which is photography.

The first camera was invented in the 11th century, and today’s cameras are considered an evolution from the Latin “camera obscura” obscura meaning “dark chamber”. These “dark chambers” are devices dating back to the ancient Chinese and Greeks that used a tube or a pinhole to project the outside landscape upside down onto a surface.

In 1568, Danielo Barbaro invented a camera that could change the diameter to increase the sharpness of the image. In 1802, Tomas Erdward and Gamhri Devid produced photographs on special paper by contact printing (however these photographs were not durable).

Milestones when the camera was born

In 1816, a man named Zozep Nips invented a box-type camera that allowed negative images to be obtained. In 1835, Mr. William Tabot was the first to make a positive from negative images and also obtained very sharp images.

In 1568, Danielo Barbaro invented a camera that could change the diameter to increase the sharpness of the image. In 1802, Tomas Erdward and Gamhri Devid produced photographs on special paper by contact printing (however these photographs were not durable).

In 1816, a man named Zozep Nips invented a box-type camera that allowed negative images to be obtained. In 1835, Mr. William Tabot was the first to make a positive from negative images and also obtained very sharp images.

Read more:

• Discover a unique old house hidden in a mountain

In 1839, Mr. Luis Dage successfully invented a process for positioning images on silver pieces. Over time, many people contributed ideas and efforts to perfect the camera.

Finally, in 1888, modern cameras from Eastman Dry Play and Film appeared on the market. The camera is pre-loaded with 6cm wide film, enough to capture 100 types of images. After taking all the film, the camera is returned… to the company to take out the film and print it! It is then loaded with film and returned to the customer.

The first digital image was taken in December 1975 with an Eastman Kodak camera. That machine uses a CCD sensor made by Fairchild Semiconductor in 1973. The machine weighs 3.6Kg, takes black and white images with a resolution of 10,000 Pixela and records on magnetic tape. Taking each photo took 23 seconds. 

However, the later Steven Sasson has perfected his product by minimizing the size and hardware inside. It was also this product that later put an end to the film empire that Kodak once dominated for a long time.

The first digital camera that looked like a regular camera was the 1981 Sony Magica (Magnetic Video Camera).

It wasn’t until 1984 that Canon introduced the Canon RC-701, an Analogue digital camera,

The first true digital camera was the Fuji DS-1P in 1988, photos were recorded on a 16MB memory card (must feed this memory with a battery) but can be considered a huge upgrade in terms of storage.

The first widely available digital camera was the Kodak DSC-100 in 1991. It had a 1.3MP resolution and was priced at $13,000. The first digital still camera with a liquid crystal display was the Casio QC-10 in 1995. The first digital camera to use Compact Flash was the Kodak DC-25 in 1996.

The first entry-level digital camera to reach 1MP resolution was in 1997. The first digital still camera capable of recording motion pictures was the Ricoh RCD-1 in 1995. In 1999, Nikon introduced the Nikon D1, a still image camera. The first DSLR with 2.74MP resolution, priced at less than $ 6,000 (affordable price for professional photographers and photo enthusiasts with a lot of money). This camera uses the same standard Nikon F-mount lenses as film cameras. In 2003, Canon released the Canon Digital Rebel, aka 300D, which had 6MP resolution and was the first DSLR under $1,000.

And to this day, you can see a wide range of cameras with ever-improving designs and functions. At the same time, with the advent of smartphones, taking photos has become easier than ever. However, for true photography enthusiasts, nothing can replace a real camera. Thanks to that, camera production technology never goes out of fashion.

Source:

• History of the photographic equipment

If you want to know why the old emperor’s bedroom was so cramped, read the article below.

Owning a large and spacious house is the dream of many people, but the ancients believed that the bigger the house, the better, especially the bedroom.

In ancient Chinese feudal dynasties, Emperors held the highest position and were revered as the ultimate authority in the world. The wealthiest Emperors, such as those from the Ming and Qing dynasties, resided in the Forbidden City, a wooden architectural wonder that holds the distinction of being the largest royal palace in the world.

But those who have visited the Imperial Palace (the current name of the Forbidden City), will probably find that the Emperor’s bedroom is usually no more than 10 square meters. Why is the monarch of this world, in other respects immeasurable, and the bedroom so “modest”?

The reason why Chinese kings’ bedrooms are often small

1. Chinese feng shui theory.

The cause stems from an ancient Chinese feng shui theory. There is an old saying: “A large bedroom with few people is an unlucky bedroom”. The bedroom area is too large, it will suck the human’s air. The people in the room themselves will have to use a lot of energy to fill the space. Therefore, the larger the room, the more damage to the body. When energy is consumed, the body will naturally be weak, the face will be gloomy, the ability to guess is reduced, and it is easy to make mistakes.

The emperor’s bedroom and bed were both very small.

Read more:

• Discover a unique old house hidden in a mountain

2. Give birth to children

In addition, Chinese is also believed that a bedroom that is too large will give birth to children. They believe that each bedroom should only have an area of 15-20m2. Sleeping in a room larger than 20m2 will make it difficult for married couples to have children. Because the couple themselves have to spend too much energy to fill the room space, their physical condition will deteriorate, affecting fertility. However, this is just a folk belief, and in fact, there is no scientific research to prove this to be true.

The “long sieve” (the bed of the old kings) is actually not much wider than the commoner’s bed. When the emperor sleeps, he will let go of two layers of curtains on either side.

3. Cold-resistant and sandstorm-proof

Palace experts point out that Beijing is located in a humid continental climate, influenced by the monsoon. Summers are hot and humid, winters are cold and snowy. Spring is often subject to sandstorms from the Mongolian steppe. At that time, there were no modern devices to limit the effects of the weather. Therefore, the king’s bedroom design needs to be cold-resistant and sandstorm-proof. The bedroom is surrounded by gauze walls. The yard is also walled.

In addition, the roof and walls are both very thick. It helps to keep the heat in the winter while limiting the effects of the summer heat.

That’s why the emperor’s bedroom is usually quite small. This design ensures both winter warmth and coolness while satisfying the feng shui element to help the emperor have the best health and pursue the dream of longevity.

Moreover, the small bedroom was very beneficial for guarding and ensuring the Emperor’s safety at all times. The large bedroom made it difficult to mobilize soldiers to respond in time, even creating an opportunity for assassins to hide to assassinate the Emperor.

In conclusion, the small size of the Emperor’s bedroom was not a sign of poverty or lack of status, but rather a reflection of the deep spiritual and cultural traditions of ancient China. By creating a small, intimate space for the Emperor to connect with the divine, create a powerful symbol of the Emperor’s humility, wisdom, and connection to the universe.

Source:

• Emperor of china list