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https://qz.com/quartzy/1194798/only-black-is-the-new-black-a-cultural-history-of-fashions-favorite-shade/

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Only black is the new black: a cultural history of fashion’s favorite shade

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The Little Purple Dress is not famous. “Yellow tie” is not a recognized dress code. Black has a hold on fashion unmatched by any other color.

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https://sawellnesscentre.com.au/importance-of-sun-for-humans/

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The Importance of the Sun for Humans

The sun is the most vital star in our solar system. Without it life would never have originated on earth. From providing heat and light that animals and plants need to survive and thrive it also provides humans with vitamin D which is essential to the body.

What is interesting is that the mass of the sun accounts for about 99.86% of the entire mass of the Solar System ¹. Its energy is of infinite use to humans and is used for almost everything ranging from heating you at home to growing crops. In fact, without the sun, there would be no light, therefore no plants.

There would also be no heat, thus planet earth would be uninhabitable. The suns radiation can be used to dry clothes. Even though in many developed countries, people use electric dryers to dry clothes, the sun is the most efficient way to do it.

The suns energy is essential for plants, as they depend heavily on light to produce food, and as a byproduct, produces oxygen. Using only the sun and a patch of soil, many types of plants can be grown and by utilising methods such as green houses, the growing seasons can be extended into the winter.

The sun also plays a major role in human biology, being the main source of vitamin D production. There are two ways to obtain vitamin D, one is by sunlight falling on your skin and the other method is by obtaining vitamin D supplements. It is difficult to obtain the vitamin D necessary for your body by food alone. Ultraviolet B rays present in sunlight are responsible for the production of vitamin D and the rate of production can vary due to a number of factors such as exposure time, skin tone and time of day.

It is not necessary for the body to tan or burn in order to produce vitamin D, a short time, generally half the time it takes for your skin to feel a burning sensation is enough. This time will be a few minutes for fair skinned people where as it may take longer for dark skinned people. The most effective time is generally during midday. If your shadow is longer than your actual height, it means the efficiency of vitamin D is lower. Additionally, if you live further away from the equator, the body will produce very little vitamin D during the winter.

Vitamin D is essential to the body. It promotes the absorption of calcium. This vitamin is also in charge of maintaining the calcium and phosphate serum concentrations and preventing hypocalcemic tetany.

Vitamin D also has other functions such as modulating cell growth, immune system functions, and reducing inflammation 2, 3. Emerging research suggests that vitamin D has a key role in preventing and for treatment of type 1 and type 2 diabetes, hypertension, glucose intolerance and multiple sclerosis 4, 5, 6, 7.

Deficiencies in vitamin D can cause thinning of bones, making them brittle and mis-shapen. It can also lead to conditions such as osteoporosis and osteomalacia ⁸. If you experience pain in bones and weakness in muscles, it can mean that you are having deficiencies in vitamin D. Reduced vitamin D can cause a number of health issues such as severe asthma in children, cognitive impairments, cancer and risk of death from cardiovascular disease.

Older adults are at an increased risk of vitamin D deficiency as the body ages, the skin becomes inefficient in synthesizing vitamin D. Many older adults are likely to spend a majority of their time indoors, resulting in a reduction of vitamin D. In addition to this, people with limited sun exposure and people with dark skin are also at a risk of vitamin D deficiency.

People with limited sun exposure are at risk of vitamin D deficiency.

The darker the skin, the larger the amount of melanin in the skin. This can reduce the skins ability to synthesize vitamin D ⁹. When the Australian population is considered, just under one in every four people which accounted for approximately 4 million people had Vitamin D deficiencies in 2011-12 ¹⁰. When considering the state data along with the seasons, it can be seen that deficiencies are higher during the winter. This is visible from the figures below. This is natural since the movement of the sun during winter produces rays that fall at an inclined angle.
Vitamin D deficiency in summer by state and territory, 2011-2012 Vitamin D deficiency in winter by state and territory, 2011-2012
At this point, you may be wondering how you can check the vitamin levels in your body. The 25-hydroxy vitamin D test is the most accurate method to determine the vitamin content in your body. For healthy people, a level of 20 nanograms/milliliter to 50 ng/mL is considered adequate. A level less than 12 ng/mL indicates vitamin D deficiency. However, this test is somewhat expensive. If you demonstrate laboratory or radiographic findings commonly associated with vitamin D deficiency, or you spend a lot of time indoors, a 25-hydroxy vitamin D test can give you an accurate assessment of the vitamin level in your body. Vitamin D deficiencies can be treated using vitamin D supplements.

References

1. Woolfson, M. (2000). "The origin and evolution of the solar system". Astronomy & Geophysics. 41 (1): 12. Bibcode:2000A&G....41a..12W. doi:10.1046/j.1468-4004.2000.00012.x

2. Holick MF. Vitamin D. In: Shils ME, Shike M, Ross AC, Caballero B, Cousins RJ, eds. Modern Nutrition in Health and Disease, 10th ed. Philadelphia: Lippincott Williams & Wilkins, 2006.

3. Norman AW, Henry HH. Vitamin D. In: Bowman BA, Russell RM, eds. Present Knowledge in Nutrition, 9th ed. Washington DC: ILSI Press, 2006.

4. Hyppönen E, Läärä E, Reunanen A, Järvelin MR, Virtanen SM. Intake of vitamin D and risk of type 1 diabetes: a birth-cohort study. Lancet 2001;358:1500-3. [PubMed abstract]

5. Pittas AG, Dawson-Hughes B, Li T, Van Dam RM, Willett WC, Manson JE, et al. Vitamin D and calcium intake in relation to type 2 diabetes in women. Diabetes Care 2006;29:650-6. [PubMed abstract]

6. Krause R, Bühring M, Hopfenmüller W, Holick MF, Sharma AM. Ultraviolet B and blood pressure. Lancet 1998;352:709-10. [PubMed abstract]

7. Munger KL, Levin LI, Hollis BW, Howard NS, Ascherio A. Serum 25-hydroxyvitamin D levels and risk of multiple sclerosis. JAMA 2006;296:2832-8. [PubMed abstract]

8. Institute of Medicine, Food and Nutrition Board. Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: National Academy Press, 2010.

9. Institute of Medicine, Food and Nutrition Board. Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: National Academy Press, 2010.

10. Abs.gov.au. (2018). 4364.0.55.006 - Australian Health Survey: Biomedical Results for Nutrients, 2011-12. [online] Available at: http://www.abs.gov.au/ausstats/abs@.nsf/Lookup/4364.0.55.006Chapter2002011-12 [Accessed 10 Jun. 2018].

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The Importance of the Sun for Humans | SA Wellness Centre

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The Importance of the Sun for Humans The sun is the most vital star in our solar system. Without it life would never have originated on earth. From providing heat and light that animals and plants need to survive and thrive it also provides humans with vitamin D which is essential to the body.

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https://www.therusticelk.com/living-without-electric-light/

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https://patents.google.com/patent/CN103057195A/en

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Noctilucent fabric and noctilucent clothes and red scarf made from same Download PDF

Publication number

CN103057195A
CN103057195A CN2013100322706A CN201310032270A CN103057195A CN 103057195 A CN103057195 A CN 103057195A CN 2013100322706 A CN2013100322706 A CN 2013100322706A CN 201310032270 A CN201310032270 A CN 201310032270A CN 103057195 A CN103057195 A CN 103057195A
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fabric

noctilucent

luminous

matrix

rete

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CN2013100322706A

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李佳翰

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李佳翰

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Luminous fabric and the Luminous garment of making and Young Pioneer
The present invention relates to the textile garment field, relate in particular to noctilucence textile garment field.

The noctilucence weaving face fabric have absorb by day and store the luminous energy of natural daylight, daylight light, ultraviolet light and in night or dark, send the light function, utilize the noctilucence weaving face fabric to make luminous clothes, noctilucence sign, noctilucence apparatus etc., can satisfy preferably the needs of people aspect safety, caution and fashion.

At present the noctilucence weaving face fabric mainly take to weaving face fabric use that the solution that contains Noctilucent material dyes, stamp or coating and make, the dyestuff or the pigment that contain certain color in employed dyeing, stamp or the coating solution, this has given weaving face fabric with certain color; Contain again Noctilucent material in these solution, these Noctilucent materials also will be attached on the weaving face fabric.

Technical problem to be solved by this invention is: the color that fabric reaches carrying noctilucent function on the product made from fabric can only be confined to light, bright-colored, and the fabric of dark dense color and the product made from dark dense color fabric can not obtain obvious noctilucent function.

According to general knowledge known in this field, dyestuff and pigment bring the color sense why for people's vision, and key is that dyestuff and pigment have absorbed irradiation luminous energy thereon, change the light intensity and the spectrum that reflex in the human eye.The luminous energy of its absorption is more, gives people's color perception just darker.For example black dyes and pigment are exactly by having absorbed a small amount of light of most irradiation luminous energy, a repellel thereon to human eye, just having made human eye produce not only dark but also dense black sense; Orchil and pigment are exactly by having absorbed the green glow in the irradiation light thereon and reflected other light, human eye is produced redly feel.

On the noctilucence weaving face fabric that adopts prior art processing, dyestuff or pigment molecule and Noctilucent material molecule evenly distribute and are mixed in together.When the integral color of dyestuff or pigment is denseer, because dyestuff and the pigment molecule of dark dense color can better absorb irradiation luminous energy thereon, not only carved up the luminous energy that shines daytime on fabric, reduced the absorption of Noctilucent material molecule to luminous energy, the more important thing is, they have directly absorbed the overwhelming majority of the luminous energy that the Noctilucent material molecule sends at night, thereby so that the noctilucence intensity that weaving face fabric sent to the external world at night is very faint.At present, all noctilucence weaving face fabrics all are light, chromatic colour on the market, and people can't produce the dark dense color weaving face fabric with good luminous effect.

Yet, in some occasions, have the dark dense color fabric of noctilucent function and extremely valuable again for people with its product of making.The Young Pioneer of wearing take the student is as example, because the color of Young Pioneer is darker, prior art can not keeping under the constant prerequisite of the original color of Young Pioneer, be given it with good noctilucence performance.In this case, the someone has proposed to add at Young Pioneer technical scheme and the patent application of local reverse striation, Noctilucent strip.Yet Young Pioneer is the article with highly social symbolic meaning, and its color, shape and integrality thereof are not allowed to change, and people can not accept the Young Pioneer with light, bright-colored reflecting strips or Noctilucent strip.If people can invent a kind ofly not only had good noctilucence performance, but also with more bolarious weaving face fabric, then Young Pioneer both can keep its color with highly social symbolic meaning, shape and integrality, can have noctilucent function at night again, avoid preferably security incident.Except Young Pioneer, the civilian dress of wearing in people's daily life and the work clothes of some industries are again examples.Why existing noctilucence weaving face fabric can not get preferably application at these civilian dresses, work clothes, and color problem is main cause.The pale green of the carrying noctilucent function that prior art can be accomplished, light, the chromatic colour such as yellowish, on traffic police, road staff's noctilucence work clothes, can use, but be applied to need generous proper and be rich on the Extraordinary civilian dress, being applied to needs the color can not be too shallow with on the work clothes that possess the performance that necessarily bears dirty, and people still can not accept.

For reaching the purpose that overcomes the above problems, the technical solution used in the present invention is: a kind of luminous fabric, fabric comprises that fabric matrix and the light transmittance that includes Noctilucent material are not less than 80% rete, the fabric matrix includes dyestuff or the pigment of fiber and set, at least one side surface of this fabric matrix is stained with aforesaid rete, and the Noctilucent material in this rete covers the dyestuff of the set on the fabric matrix or the skin of pigment.This fabric have present under the photoenvironment its matrix with color, unglazed according to sending again noctilucence to the external world and present obvious luminous effect under the environment.

The scheme that this technical scheme is further optimized in application is: dyestuff or the pigment of the set that described fabric matrix comprises are processed by dyeing or stamp; The described rete that sticks at least one side surface of fabric matrix, includes Noctilucent material is processed by coating solution coating on the fabric matrix, is perhaps formed by stem body flexible membrane layer and fabric matrix Compound Machining; The both side surface of fabric matrix all is stained with the described rete that includes Noctilucent material; The described light transmittance that includes the rete of Noctilucent material is not less than 90%.

The application also comprises other two inventions on the basis of above invention: 1, a kind of Luminous garment, all or part of employing such as above technical scheme or any one described luminous fabric of scheme of further optimizing.2, a kind of Young Pioneer has adopted such as above technical scheme or any one described luminous fabric of scheme of further optimizing, and the dyestuff of the set on the fabric matrix of this luminous fabric or the integral color of pigment are red.

The invention has the beneficial effects as follows: the color that has solved the product carrying noctilucent function of making at fabric and with fabric can only be confined to problem light, bright-colored, make dark dense color fabric can obtain equally good noctilucence performance, thereby make the clothes of dark dense color and Young Pioneer etc. can be added into easily the noctilucence element, make its have present under the photoenvironment fabric matrix with color, unglazed according to sending again noctilucence to the external world and present obvious luminous effect under the environment, and then obtain function and the stylishness of safety, caution aspect.

Adopt the dark dense color luminous fabric of technical solution of the present invention and with on its clothes and Young Pioneer of making, dyestuff or pigment molecule and Noctilucent material molecule are not evenly to distribute also mixed in togetherly, but Noctilucent material is at skin, and dyestuff or pigment are at internal layer.1, having under the photoenvironment, light shines on the fabric, the first absorbing light energy of outer field Noctilucent material molecule, the light that sees through rete shines on dyestuff or the pigment molecule and by its absorbing light energy again, unabsorbed again transmission or reflect away, in this course, dyestuff and pigment might as well hinder the Noctilucent material molecule to the absorption of luminous energy substantially; Shine under the environment unglazed, outer field Noctilucent material molecule sends noctilucence, in the light that sends only the luminous energy less than 50% directly be sent to the inboard, its overwhelming majority is absorbed by dyestuff or pigment molecule, and the part luminous energy that is not absorbed and reflects is together with 50% the light of surpassing that directly is sent to the outside and planar side, can be by the obvious perception of people's vision institute.Luminous fabric of the present invention, with use the equal proportion Noctilucent material and adopt that prior art produces not with any color or only compare for fabric light, bright-colored, noctilucence intensity reaches more than 50% of the latter, double such as the consumption with Noctilucent material among the present invention, noctilucence intensity can reach the latter's 100%.This is first aspect of beneficial effect of the present invention---good noctilucence performance.2, having under the photoenvironment, because the light transmittance of rete is not less than 80%, has preferably transparent effect, very naturally, second aspect of beneficial effect of the present invention---present the colored characteristics of fabric matrix at the product that the photoenvironment lower fabric is arranged and make, at this moment also showed out.

Accompanying drawing 1 is the enlarged diagram of the two-sided luminous fabric structure of the present invention;

Accompanying drawing 2 is enlarged diagrams of single face luminous fabric structure of the present invention.

The fabric matrix of 1. two-sided luminous fabrics among the figure, 2. the light transmittance that contains Noctilucent material in the two-sided luminous fabric is not less than 80% rete, 3. the fabric matrix of single face luminous fabric, the light transmittance that 4. contains Noctilucent material in the single face luminous fabric is not less than 80% rete.

The present invention is further illustrated below by specific embodiment.

Embodiment 1: red two-sided luminous fabric.

As shown in Figure 1, the two-sided luminous fabric of a kind of redness, dye the also dyestuff of set on including evenly on the fabric matrix 1 that contains 65% cotton fiber, 35% polyster fibre through dyeing processing, its integral color presents redness, the both side surface of fabric matrix 1 all is stained with the rete 2 that comprises the rare earth aluminate luminescent powder, rete 2 is processed by the acrylate EF-C clear solution coating on fabric matrix 1 that contains Noctilucent material, and the light transmittance of rete 2 is 80%.Rete 2 is together with its Noctilucent material that comprises, and covers the skin of the dyestuff of the set that fabric matrix 1 and fabric matrix 1 comprise.

Have this fabric under the photoenvironment present fabric matrix 1 with redness, send obvious noctilucence unglazed according to environment is next.

Embodiment 2: the dark red colored single face luminous fabric of black matrix.

As shown in Figure 2, the dark red decorative pattern single face of a kind of black matrix luminous fabric, the dyestuff and the pigment that successively include set on the fabric matrix 3 that contains 35% viscose rayon, 65% polyster fibre through dyeing processing, stamp processing, it presents black background color, kermesinus decorative pattern, one side surface of fabric matrix 3 is stained with the rete 4 that comprises Noctilucent material rare earth aluminate luminescent powder, rete 4 is formed by the polyurethane US-1010A stem body flexible and transparent rete that contains Noctilucent material and fabric matrix 3 Compound Machining, and the light transmittance of rete 4 is 90%.Rete 4 is together with its Noctilucent material that comprises, and covers the dyestuff of the set that fabric matrix 3 and fabric matrix 3 comprise and the skin of pigment.

Have this fabric under the photoenvironment present fabric matrix 3 with the black background color add dark red decorative pattern, send obvious noctilucence unglazed according to environment is next.

Embodiment 3: the dark red colored single face noctilucence old man overcoat of black matrix.

The fabric of these clothes adopts described in the embodiment 2 and the dark red colored single face luminous fabric of black matrix as shown in Figure 2, make through cutting, sewing, rete 4 directions outwardly, whole clothing surface is without other any Noctilucent strip or luminous cloth sheet.

When this overcoat be through the elderly with it after, add dark red decorative pattern there being under the photoenvironment it present the black background color, it sends again obvious noctilucence according under the environment unglazed, has traffic alarm, safety prompt function function under night condition.

Embodiment 4: the noctilucence Young Pioneer.

The fabric of this Young Pioneer adopts described in the embodiment 1 and two-sided luminous fabric as shown in Figure 1, the color of fabric matrix 1 is the redness of common Young Pioneer, through cutting and making, its shape and size and common Young Pioneer are identical, even, the complete unification of whole Young Pioneer color.

After this Young Pioneer is tied on the student front, there is being under the photoenvironment it be rendered as Young Pioneer as Young Pioneer's sign, send obvious noctilucence unglazed according to environment is next, have traffic alarm, safety prompt function function under night condition.These Young Pioneer tow sides all have rete 2, also do not affect its use even the student is anti-Young Pioneer.

Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

1. luminous fabric, on the fabric with Noctilucent material, it is characterized in that: fabric comprises that fabric matrix and the light transmittance that includes Noctilucent material are not less than 80% rete, described fabric matrix includes dyestuff or the pigment of fiber and set, at least one side surface of this fabric matrix is stained with described rete, and the Noctilucent material in this rete covers the dyestuff of the set on the fabric matrix or the skin of pigment.

2. a kind of luminous fabric according to claim 1 is characterized in that: dyestuff or the pigment of the set that described fabric matrix comprises are processed by dyeing or stamp.

3. a kind of luminous fabric according to claim 1, it is characterized in that: the described rete that sticks at least one side surface of fabric matrix, includes Noctilucent material, processed by coating solution coating on the fabric matrix, perhaps formed by stem body flexible membrane layer and fabric matrix Compound Machining.

4. a kind of luminous fabric according to claim 1, it is characterized in that: the both side surface of this fabric matrix all is stained with the described rete that includes Noctilucent material.

5. a kind of luminous fabric according to claim 1, it is characterized in that: the described light transmittance that includes the rete of Noctilucent material is not less than 90%.

6. a Luminous garment is made as primary raw material take fabric, it is characterized in that: all or part of employing such as arbitrary described luminous fabric in the claim 1 to 5.

7. a Young Pioneer is made as primary raw material take fabric, it is characterized in that: adopted such as arbitrary described luminous fabric in the claim 1 to 5, the dyestuff of the set on the fabric matrix of described luminous fabric or the integral color of pigment are red.

CN2013100322706A 2013-01-28 2013-01-28 Noctilucent fabric and noctilucent clothes and red scarf made from same Pending

2013-01-28

2013-01-28

Noctilucent fabric and noctilucent clothes and red scarf made from same

2013-01-28

2013-01-28

Noctilucent fabric and noctilucent clothes and red scarf made from same

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CN103057195A - Noctilucent fabric and noctilucent clothes and red scarf made from same - Google Patents

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The invention relates to a noctilucent fabric which comprises a fabric base body and a membrane layer with light transmittance of lower than 80 percent, wherein the membrane layer contains a noctilucent material, the fabric base body comprises fibers and setting dye or pigment, the membrane la…

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https://4naturesystem.com/blog-en/bid-46-importance-of-light-for-plants-and-people

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There is a reason why it is said that light is life. In fact, it was largely thanks to it, life was born on our planet. Therefore, it is not surprising that for the proper development and functioning of people and plants, the right amount of light is crucial. It is worth delving into this topic to find out why light is so important and how we can supplement the deficiencies of natural light.
Light in human life
Light allows us to see the surrounding world by distinguishing details, individual colours, movement, brightness. It has a very big impact on a human in terms of the physiology and psyche. But light also has extremely important functions in relation to a lot of biological processes that occur in our body. This is, e.g., the correct metabolism, blood circulation and hormone balance of a human. This light also synchronises our internal clock, thanks to which our body functions in a certain rhythm.
Of all five senses, the sight provides us with the most information about our environment, and this is one reason why light has such a big impact on our everyday functioning and mood. Adequate lighting improves visibility and safety, especially after dark, when our eyesight does not fulfil its role well anymore. Light can also reduce our fatigue and affect the improvement of work productivity. And to top it all, it can positively affect our mood and well-being.
Of course, these are only examples of how light affects our everyday life. In fact, there are many more areas that are regulated by access to the right amount of light. We must remember to provide ourselves with this important "fuel".
Artificial lighting
Deficiency or even lack of light can have a negative effect on both our health and mood. Therefore, for more than 100 years, a human has tried to compensate for such losses with artificial electrical lighting. Different distribution of lighting systems, as well as different types of light sources with different intensity and colour, allow us to achieve the intended effect, which is favourable to work (light similar to daylight - white cold) or rest (warm shades of white with low intensity). Certainly, it is worth to consult a professional who will advise us on which solutions to use in order to achieve the desired effect.
Light in the development of plants
Everyone who likes to surround themselves with plants is aware of the huge importance of access to adequate amount of light in their proper development. It affects both their vitality, intensity of growth and image, so if we want them to be a beautiful decoration in our offices or apartments, we have to remember that.
Thanks to the light, there is a photosynthesis process in plants, whose normal course affects their image. If the lighting is inadequate, the plant storage substances run out. In such a case, flowers usually just stop growing. It also happens that over time, the distance between their leaves becomes larger, and the leaves are smaller or even almost transparent. If the lighting is too intense for the plant, dark spots may appear on its leaves. After some time, these spots dry out and crumble which is the beginning of the process of their total dying, drying and falling off. It should be remembered that plants also need "night" for a minimum of 6 hours a day so they cannot be permanently exposed to light.

So how can you be sure that our plants have access to the right amount of light? Of course, in the first place we should find out what amount of light the given species needs. Thanks to this, we will find out whether they should stand on the window sill, or whether we can set them in places a little away from the windows.
Unfortunately, not every plant enthusiast has the conditions to provide all his flowers with perfect conditions. In autumn and winter, access to natural light is also very limited. In this situation, we need to use artificial lighting, which must, however, produce a spectrum similar to natural light.
Additional plant lighting
A lot of people may think that plant lighting is troublesome and can simply look unsightly. Currently, however, we have a lot of various assimilation lamps to choose from, thanks to which we will easily take care of the well-being of our beloved plants. During our activity we have checked a lot of types of light sources where we have developed the most optimal solutions for plants. In our opinion, LED lamps are the best solution because of their appropriate colour, intensity and energy efficiency. We offer such solutions to our customers.
It is also worth paying attention to the fact that properly selected lighting of greenery can improve the aesthetics of the entire room. In the case of green plant walls, their lighting gives an extraordinary visual effect that even more emphasises the uniqueness of the composition and the entire interior. If the light is too intense for us, we can set the time to light the plants when we are away from home, e.g. at work. The optimal time for lighting a green plant wall varies from 8 to 12 hours. Therefore, we should not be afraid of using artificial light for the benefit of our plants because we can regulate this process quite flexibly.

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Importance of light for plants and people

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There is a reason why it is said that light is life. In fact, it was largely thanks to it, life was born on our planet. Therefore, it is not surprising...

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https://impoff.com/importance-of-light/

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Light is the source of all life on our planet. The importance of light could be comprehended as plants synthesize nutrients from light using chlorophyll, and filter the air we breathe. Animals and humans depend on plants for survival. Therefore, everything depends on the light in some way.

The human body needs to be exposed to natural sunlight and its rhythm to function properly. The effects of light on endogenous production of vitamin D and melatonin are well known, as well as the role they play in emotional dysfunction such as SAD (Seasonal Affective Disorder).

During millions of years of evolution, man lived in a system strictly dependent on the climatic conditions that surrounded him. Social habits were strongly influenced by the seasonal rhythm and the time of exposure to natural sunlight. The expansion of artificial electric light, which began in the last century, finally allowed the independence of the natural photocycle.

The practical convenience of artificial light has led to underestimating the physiological implications of replacing daylight. Modern man not only lives in artificial environments but also is exposed to an immense amount of radiation from electromagnetic fields with different intensities from the planetary radiations to which man has been exposed for millions of years.

Light awakens nature, generates food for plants, and protects us from bad energy. Let's discuss why do we need light in detail:

Importance of Light for your Health

One of the significances of light is it plays a major role in maintaining good health. The main factor controls our circadian cycle. This cycle is responsible for controlling our entire life. It controls the release of hormones in our body, even our brain nerves, and heartbeat. It also influences and controls our waking states and levels of consciousness.

Ensuring a good incidence of light in our environments can even have a positive effect on our mood, can influence the critical chemical reactions of our body, can reduce emotional problems (such as depression, for example), can improve the quality of our sleep, can make us healthier and immune to pain and even improve our productivity and job satisfaction.

The lack of light in our lives and in our environments, can cause disturbances in the production of melatonin, deregulate the release of growth hormone, cause a lack of vitamins (without sunlight our body does not synthesize vitamin D), it can impact the regulation of our metabolism, and it can also cause obesity, irritability, tiredness, etc...

Light and Photosynthesis

Have you ever wondered what is the importance of light reactions in photosynthesis? Plants need light to produce organic molecules ATP and NADPH necessary for the following dark reactions. Light energy takes up the whole process of photosynthesis when pigments absorb light. To process photosynthesis chlorophyll absorbs red and blue segments present in the white light.

Either way the answer to what is the importance of the light and dark reactions in photosynthesis? They require the light to produce organic energy molecules i.e., carbon dioxide, ATP, and NADPH in order to produce the product glucose.

The importance of the light-independent reactions in terms of carbon flow in the biosphere is also notable. The light reactions produce glucose -An important sugar generates from carbon dioxide CO2 gas.

Artificial lighting Importance

Artificial lighting can help you bring energy to your home, whether on cloudy and rainy days, at night, or even if your home simply does not have much access to natural light.

Having good internal lighting is essential to create a pleasant atmosphere and helps to enjoy a good life. Any dark spaces can be lit with the right lights to make every day feel like vacations in your home. Perhaps, the Christmas lights are what make the atmosphere of the house so special at this time of year. So, why not have that kind of feeling of relaxation and peace available in your home daily?

Try to choose lamps whose spectra of light are closest to sunlight. Look for lamps that have a Color Rendering Index greater than 80 (IRC> 80).

Choosing the right lamp determines whether the positive effect of artificial lighting has been achieved or not. The exterior spaces of the house, such as the garden, backyard, balcony, and all dark spaces, when properly lit, can transform the climate of the place, transforming it into a totally new and vibrant space.

Nowadays the importance of blue light glasses is also getting popular as they reduce the potential risk of eye damage. Moreover, it also improves the alarming symptoms of computer vision.

Light is so essential that generally, we realize this importance when faced with the lack of it. In a power outage, we look for something to be able to bring backlighting, be it with a candle, flashlight, or even a Smartphone.

Since the dawn of time, human beings have been looking for ways to illuminate the environment. The fire not only brought the heat to warm them and the opportunity to prepare food, but it also brought the chance to enter the unknown of darkness with enlightenment.

From that, we look for evolutionary ways to keep the light in our lives, with candles, lamps, or other admirable technologies, which over the years have become useful and indispensable.

The small lighting in a lamp frightens children, softer lighting creates environments that are considered peaceful, and a stronger light invigorates the mood in any situation.

The importance of light is both for living and nonliving organisms. The word light is so important that it already brings the feeling of something good. A well-lit environment brings safety, comfort, and increased traffic and productivity.

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Importance of Light in our Everyday Life - IMPOFF

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Light is the source of all life on our planet. The importance of light could be comprehended as plants synthesize nutrients from light using chlorophyll, and filter the air we breathe. Animals and humans depend on plants for survival. Therefore, everything depends on the light in some way.

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https://lumigram.com/en/fabrics/200-5906-velo-white-fabric-luminous-fiber-optic-fabric.html#/29-power_supply_mandatory-wall_socket/32-socket_mandatory-uk/35-light_color-cold_white

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Luminous Fiber Optic Fabric. Suitable for Design, Accessories and Luminous Clothing. Create your own Cinderella Glow Dress.

Tax excluded Usually shipped in 5-7 days

This Luminous Fabric is our best seller, suitable for a lot of Application has a width starting from 18'' till 118''. This Fiber Optic Fabric is bright and soft and easy to sew.

It's very suitable for Luminous Dress, Luminous Clothing, Luminous Tablecloth and Luminous Pillows.

It can be powered by Lithium Battery or AC PLUG.

The Fiber Optic Clothing Cristopher has 11 colour of fabric and 7 colour of led. The RGB Led is also available with all the Colours and two effect for light up your special Cinderella Glow Luminous Dress.

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Velo White Fabric (Luminous Fiber Optic Fabric) Power Supply *Mandatory Wall Socket Socket *Mandatory UK Light Color Cold White

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Luminous Fiber Optic Fabric. Suitable for Design, Accessories and Luminous Clothing. Create your own Cinderella Glow Dress. Tax excluded Usually shipped in 5-7 days This Luminous Fabric is our best seller, suitable for a lot of Application has a width starting from 18'' till 118''.

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Think last year was bad? Just wait until the sun starts spewing plasma

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Think last year was bad? Just wait until the sun starts spewing plasma

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A forecast solar storm in 2025 threatens mass power cuts, comms blackouts, and trillions of dollars of damage back here on Earth.

Reference:
https://wired.me/science/sun-solar-storm-2025-impact-on-earth/

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Outage investment shortfalls in the power sector in Eastern Europe and Central Asia (eBook - NTU)

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Outage investment shortfalls in the power sector in Eastern Europe and Central Asia (eBook - NTU)

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This study analyzes the impacts of the financial crisis on power sectors in five countries in the region: Armenia, Kyrgyz Republic, Romania, Serbia and Ukraine. Before the financial crisis, these countries faced expected power shortages as a result of large investment gaps.

Reference:
Balabanyan, A, Vrenezi, E, Pierce, L, & Pierce, L 2011, Outage : Investment shortfalls in the power sector in Eastern Europe and Central Asia, World Bank Publications, Herndon. Available from: https://llr.primo.exlibrisgroup.com/permalink/44NTU_INST/1mqln2/alma9917583634207181 [9 June 2022].

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When the lights went out a history of blackouts in America (eBook - NTU)

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When the lights went out a history of blackouts in America (eBook - NTU)

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Where were you when the lights went out? At home during a thunderstorm? During the Great Northeastern Blackout of 1965? In California when rolling blackouts hit in 2000? In 2003, when a cascading power failure left fifty million people without electricity? We often remember vividly our time in the dark. In When the Lights Went Out, David Nye views power outages in America from 1935 to the present not simply as technical failures but variously as military tactic, social disruption, crisis in the networked city, outcome of political and economic decisions, sudden encounter with sublimity, and memories enshrined in photographs. Our electrically lit-up life is so natural to us that when the lights go off, the darkness seems abnormal.

Nye looks at America's development of its electrical grid, which made large-scale power failures possible and a series of blackouts from military blackouts to the greenout (exemplified by the new tradition of Earth Hour), a voluntary reduction organized by environmental organizations.

Blackouts, writes Nye, are breaks in the flow of social time that reveal much about the trajectory of American history. Each time one occurs, Americans confront their essential conditionnot as isolated individuals, but as a community that increasingly binds itself together with electrical wires and signals.

Reference:
Nye, DE 2010, When the Lights Went Out : A History of Blackouts in America, MIT Press, Cambridge. Available from: https://ebookcentral.proquest.com/lib/ntuuk/detail.action?docID=3339113 [9 June 2022].

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I use procreate painted posters about power outage.