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Rose hydrosol: what are its virtues?

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 Rose hydrosol has been known for thousands of years. It has benefits not only for the skin and hair, but can also be used in the preparation of drinks and desserts. We present to you all its virtues. Hydrosols are also known as floral waters. These are products that contain many therapeutic properties and aromatic substances used by the cosmetic, perfume and aromatherapy industries. Hydrosols are the by-product obtained by the distillation process carried out during the extraction of essential oils. This process consists in subjecting the plant (leaves, flowers, seeds, roots, etc.) to the action of water vapor when the essential oil is extracted. During distillation, the water vapor passes through the tissues of the plant and carries the oil present in the flowers to the condenser. But it is not only the essential oil that is entrained by water vapor, other volatile and active aromatic elements of the plant are also present. Where does rose hydrolate come from? Rose hydrosol has long
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why the sea is blue ???

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 If you have the chance to walk on a beach, you only see that: the sublime blue of the sea. But, by the way: why this color? Find out why the sea is blue. If the Earth is called "the Blue Planet", it is no coincidence: 71% of it is covered with water of a beautiful blue color clearly visible from space. Reflection of the blue light of the sky on the sea Where does this blue color come from? There are two reasons. The first, which seems the most obvious but is not the most important, is the reflection on the sea surface of the diffuse light from the sky, responsible for the blue color of the sky. This is why the sea is bluer in good weather, when the sky itself is blue, and it is rather gray in bad weather, when it is also gray. Absorption of wavelengths: all that's left is blue! However, speleologists have found that even in caves, protected from the sky, the water is blue if it is illuminated with a white light. Indeed, when a white light, in other words solar radiation,
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Why is the sky blue?

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  At night, the sky is black. By day it is blue. This is the case only on planet Earth, whose atmosphere, with special optical properties, diffuses sunlight mainly in the blue. On the Moon, the sky is black: thus, whatever the hour, we can very well distinguish the Earth, the Sun and the other stars. From our planet, the view is different. The sky is blue, or white if there are clouds, or even gray if the storm is not far. These colors are simply due to the presence of our atmosphere, whose molecules absorb certain wavelengths of solar radiation. Rayleigh for the blue of the sky Every particle in the atmosphere is an obstacle for solar radiation: light is diffused in all directions. There are two diffusion mechanisms: one comes from the wave nature of solar radiation, the other from the refraction of rays, linked to geometric optics. If the sky is blue it is because of the Rayleigh scattering. It characterizes the scattering of light by particles whose radius is very small compared to
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