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What do the color bars that appear on the TV mean?

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Que signifient les barres de couleurs qui apparaissent sur la Télévision001

We’ve always noticed an intriguing fact about our TVs: with every signal error or possible glitch, colored bars immediately appear on the screen. This still sometimes happens at the end of a stream. This frozen image (pattern) is now anchored in our minds. But do you know its origin? Many people don’t know why these colored stripes suddenly appear on the screen. If you are one of them, we will unravel this mystery for you.

Look: Where do these colored bars come from on the TV screen?

no signal on tv

There is no signal on television – Source: spm

Since the advent of televisions, test charts have always been around. For those of you who don’t know, this type of colored image was used to adjust the TV screen which then had an antenna at the time. The most famous of these images was the one created in 1938 by RCA (a company that sold electronic products): it was easily recognizable as it showed a small image of an American Indian.

The RCA Sight

The RCA Chart – Source: spm

Subsequently, the appearance of color television will mean a change in the design of these models. Then SMPTE color bars, the invention of Norbert Larky and David Holmes, will be adopted. This is a very common television test in countries that use the NTSC standard video format, one of the most popular. What was the role of these colored bars? They were tasked with calibrating the signage and adjusting the receiver for light and color palette. Interesting fact: the design of this colorful pattern is quite simple and only has vertical lines. In this format there are seven color bars at 75% intensity (gray, yellow, cyan, green, magenta, red, and blue). The rest of the image is made up of calibrations and settings so you can adjust them to the TV.

smtpe target

SMTPE Chart – Source: spm

But, over time, these patterns began to gradually fade from the television landscape. Simply because television technology has come a long way, advancing by leaps and bounds in recent years. Therefore, this type of adjustment is no longer necessary. However, some channels still use them sometimes, just to mark the end of the broadcast.

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From now on, the origin of these famous bands of colors that appear on your screens becomes clear to you. Now, we are going to give you some tips to preserve the longevity of your television. Because, like any other device, its useful life is limited, but it depends above all on its maintenance. By adopting good habits, you can enjoy them for a few more years.

  • Bet on a suitable location

Choose the location of the television

Choose TV location – Source: spm

Where you place your TV is critical. It is especially important to avoid placing it near the window: if it is exposed to the sun, it can get hot and this could damage some of its components. In the same direction, keep it away from any heat sources where the temperature is high, such as radiators. The ideal is to install it in a cool and ventilated corner. But also avoid damp areas that attract insects. These can lurk and damage your TV’s internal circuitry.

  • Unplug the TV when not in use

Leaving the device constantly plugged in is a very common mistake. However, it’s important to completely unplug your TV overnight and even when you leave the house. This will not only allow you to save energy, but also protect it against power surges. Not to mention, standby tends to wear out your smart TV. Therefore, it is preferable to take the reflex of unplugging it as soon as you are no longer in front of it.

Finally, although you rarely think about it, it helps to properly clean your TV on a regular basis. Because, like any electrical device, dust and smudges accumulate on the screen. If you want your TV to stay as efficient as ever and last over time, a little cleaning won’t hurt. However, you must apply the right products: it is better to avoid chemicals such as sprays and disinfectants that can damage your components over time. Opt for white vinegar (diluted with water), a natural detergent proven to effectively dust and clean your device. To do this, we advise you to always use a soft microfiber cloth to avoid scratching the screen.

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read also What do the colors on food packaging mean? A little known but very useful function.

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the best dates for a successful haircut

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Calendrier lunaire des coiffures pour février 2023 - les meilleures dates pour une coupe de cheveux réussie_

Do you want to know what is the best time to do some hair changes? Would you like to adopt a new haircut or sport a new hairstyle? According to some beliefs, the lunar calendar could help you in this regard. Here’s how to let yourself be guided by the lunar calendar for February 2023 to take care of your hair and get an impeccable result! It’s your turn ! Follow the guide!

What are the best days to go through the scissors box during the month of February 2023? What days should I avoid? Do your visits to the hairdresser take your head off? Bingo! We give you all the information you need to take care of your hair… According to the lunar calendar. Don’t be afraid, trust the Moon and go for it!

The benefits of cutting hair with the moon

full moon

Full moon. source: spm

Cutting hair according to the lunar calendar is an ancient practice of cutting hair with reference to the different cycles of the Moon. Idea based on the influence of the moon on the development and growth of hair. If you paid a little attention to this belief, you would know that the lunar calendar indicates the most favorable days to make a hair change, obtaining a successful cut and healthy hair. What else can we expect?! If you’re stuck, let us help you!

Also read: These zodiac signs can strike it rich in 2023. They will have a fantastic year

What are the benefits of getting a haircut with the moon?

According to legend, lunar calendars have been used for centuries to determine the best time to get a haircut. According to the cycle of the Moon, hair would grow at different rates. Furthermore, this practice is said to offer health and beauty benefits for the hair, as well as spiritual and energetic benefits at the same time. The idea, in fact, is to make a cut according to the position of the moon. Which allows to accelerate growth, make them thicker and more voluminous. After all, if the night star is strong enough to move the oceans and has the ability to influence the tides, it’s no wonder it can have a direct impact on our hair.

What are the good times to get a haircut according to the lunar calendar for February 2023?

Now that you know the benefits of the lunar calendar for hair health, you want to optimize the growth and volume of your hair. Why not the key moments to sport a new hairstyle or get a new haircut? That being said, first of all, zoom in on the most important dates of the February 2023 lunar calendar for nickel hair all year long. Zoom in on lunar dates!

Lunar calendar for February 2023

Moon phases

Moon phases. source: spm

The dates corresponding to the different lunar phases in February 2023:

  • Full moon : February 5th
  • New Moon : February 20th
  • Crescent moon: February 1-4, February 21-28.
  • waning moon : February 6-19.

Before revealing to you the favorable periods for any hair manipulation for the month of February 2023, here are some indications on the lunar calendar of haircuts for January 2023, for people who want to make a change right now!

Lunar haircut calendar for February 2023: favorable and unfavorable days

Do you want to accelerate your hair growth or strengthen and thicken your hair? You just need to stick to the perfect dates for a successful haircut. Take out your agenda, dear readers, and make an appointment with your hairdresser!

  • When to cut to promote hair growth?

Do you want to accelerate your hair growth? Well, it’s time to go to your hairdresser while the Moon is positioned in the waxing phase, that is, in: February 1, 4, 22, 23, 24, 25, 26, 27 and 28. This period is great, especially if you want to have long hair!

  • When to cut to slow down hair growth?

If you want to slow down your hair growth. A friendly advice, cut them during the days of the waning moon, that is, the following dates: 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18 and 19 February 2023. Ideal period if you want to keep a short haircut as long as possible and space out visits to your hairdresser. This includes the Full Moon that will take place on Sunday, February 5, 2023, the opportune time to try a new drink! Smart, right?

  • When to cut to thicken and strengthen hair?

To have thick and voluminous hair, my advice to you is to cut it while the Moon enters the sign of Leo or Virgo, on the following days: February 4, 5, 6, 7, 8 and 9, 2023. To your scissors!

Also read: 3 zodiac signs will be lucky in February: they will get everything they want

Cut your hair

Cut your hair. source: spm

  • When is the best time to rest your hair?

The following days are unfavorable for any care or manipulation of the hair, you must let them rest, and this in: February 2, 3, 11, 12, 13, 20 and 21, 2023, when the night star is placed under the sign of Cancer, Scorpio or Pisces. These dates include the New Moon that will take place on Monday, February 20, 2023 and where we strongly advise against touching your beautiful mane.

Dear readers, the Moon is a fascinating star and from now on your visit to the hairdresser will no longer be random, the lunar cycles will guide you to obtain an impeccable result. If long hair is beautiful, healthy hair is even better! Control the cycle of the Moon and be aware of the beauty of the hair. Come on Zou, get started and let the Moon do the rest!

Also read: 2023 will be a real fairy tale for 4 zodiac signs: beautiful surprises are ahead

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How to heat the house with the trick of aluminum foil behind the radiator?

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L’astuce de papier aluminum001

For most people, this winter is marked by anxiety about rising electricity prices. But to reduce your heating bills, there are some interesting alternatives that can relieve you. In particular, it turns out that aluminum foil, which you use regularly in the kitchen, can serve you in unexpected ways. A simple sheet behind the radiator can prevent significant waste. We explain to you.

a radiator

A radiator – Source: spm

Why use aluminum foil behind radiators?

With rising energy prices and the high cost of living, we’re constantly looking for smart tips and tricks to save money and lower our household bills without sacrificing convenience. You are probably wondering if there is any benefit to placing a homemade radiator reflector. Well, indeed, it is a well thought out alternative. Because it prevents the heat emitted from dissipating through the walls.

Right now, anything that can make the house warmer without necessarily turning up the thermostat is welcome. And precisely, the very purpose of a radiator reflector is to reflect all the heat that is lost through the wall back into the room. Thanks to this technique, you not only maximize heating efficiency, but also avoid wasting energy. Therefore, you save a little more money!

Also read: How to warm up almost for free in winter with the trick of rice in the sock?

Foil

Aluminum foil – Source: spm

Often used for cooking in the oven or keeping food warm, aluminum foil is a particularly versatile tool with a wide variety of uses. However, few people take full advantage of it. And, that’s a shame, since it can help you solve many common household problems. Here, in this case, you can count on him to help you reduce your heating bills. By fixing an aluminum sheet behind the radiator, you will be pleasantly surprised by its effect.

Radiators are usually placed under or near windows, which means that the heat they give off quickly evaporates from the apartment. It turns out that aluminum foil can contribute to an increase in room temperature and act as a heat reflector. The trick is very simple and takes little time.

Also read: Why is it important to leave the microwave door open for two minutes after using it?

What you will need:

  • A roll of aluminum foil
  • An unfolded cardboard box the size of the radiator.

How to proceed ?

  • Wrap the cardboard with aluminum foil so that the shiny side shows.
  • Place the object behind the radiator.

Thus, the aluminum foil will successfully reflect the heat from the radiator. In fact, the heat will be immediately pushed into the room instead of evaporating outside the window or heating up the wall unnecessarily. Thanks to this, your interior will be better heated and at the same time you will be able to reduce the amount of the bill by turning off the thermostat.

NB – If you don’t have cardboard on hand, you can simply tape the aluminum foil to the back of the radiator with masking tape like “masking tape”.

Also read: How to heat an apartment without a radiator?

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What are the dimples on golf balls used for?

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À quoi servent les alvéoles sur les balles de golf final

We may believe in a desire for aesthetics, but in truth the holes on the surface of golf balls hide a secret. The fascinating little detail is that they are so small that they often go unnoticed. And golfers don’t even pay attention to it anymore. But, there is a scientific significance in the presence of these cells: more precisely, it is a matter of aerodynamics. Why aren’t these holes there by chance and how do they help improve gameplay? In this article, we will enlighten you on the subject.

a golf ball

A golf ball – Source: spm

What are the dimples on golf balls used for?

Whether you are an experienced player or just a golf fan, you will surely have noticed that the balls are not completely smooth, they are full of small holes. They are called alveoli. Their function is not minor: they have been specially designed to help golfers achieve greater range and better precision. So it’s mostly a matter of dragging and lifting.

Specifically, when you hit the ball, these holes will create a flow of air called “turbulence” which will reduce drag. In fact, these vortices will allow the ball to stay in the air for longer and therefore reach a greater distance. Thanks to these cells, the elevation is more efficient and the ball can travel more meters. Therefore, the holes reduce the resistance of the bullet with the area of ​​air pressure. Unlike a smooth ball which generates more resistance: if you throw a ball without holes, of course it will go up, but it will necessarily go down faster, since there is more pressure to stop.

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Therefore, the dimples on golf balls allow for better travel and amplify the range spin, as the vortices optimize lift force. Also, the more balls contain, the more they improve a golfer’s game.

Play golf

Play golf – Source: spm

How many dimples are in a golf ball?

For the record, golf balls were originally smooth. But they were often damaged and took a lot of hits. And above all, they were not very efficient. It was not until the beginning of the 20th century that the English golfer and manufacturer William Taylor had the brilliant idea of ​​designing dimples. Much to the delight of golfers who felt a clear difference!

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Have you ever wondered how many holes a golf ball has? Hard to count actually. Actually, there is no normal per se, since the number usually depends on the model, design and manufacturer. But it takes on average 300-500 holes. 336 cells are most often found in quality bullets.

What is the optimal diameter for a golf ball?

We can also wonder about the variable number of cells despite the fact that the weight and size of a golf ball are strictly regulated by the sport. That is to say, that the diameter is established at a minimum measurement of 42.67 millimeters and the weight must not exceed 45.93 g. Golf ball sizes are generally standard. However, in terms of cells, the average depth is about 0.254 mm. They must necessarily be symmetrical, but it is allowed that they be circular or hexagonal.

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