We come out of the dust, and then come back to make dust - what is dust after all?

This is a very powerful brain hack, which helps you to know a very different aspect of dust particles - things that make ordinary things around us.

In the song "Sand dust" by the late musician Trinh Cong Son, he said: "Which dust particle is my life, let me go back to work as a dust tomorrow." If you understand this sentence literally, then it means that all of us' lives will be a cycle, going from dust and ending to dust.

But in the end, what is dust? What do you think you understand about dust? The answer is not much.

Begin the journey to discover our dusty world with your friend Dermatophagoides farinae . This is a species with the same relatives as spiders, but tiny, the whole body is only 1/4 mm long with the tip of a pin. Our house is completely blind but it is endowed with an extremely sensitive sense of smell to seek refuge and lay eggs.

The world of dust mites is under a dusty bed sheet, or in some dust is forgotten in the corner.

But why do we mention this animal? Simply because the whole world of dust mites is under a dusty bed sheet, or in some dust is forgotten in the corner. In short, they live in dust.

But what is dust? Looking deeper than a bit, a pinch of dust actually contains a colorful world. However, everything was mixed together in gray under our eyes.

The composition of dust is a lot of small pieces with origins from everywhere. They can be sand, dead skin cells, hair, pollen, even . dandruff, and of course the dust mites mentioned above.

The composition of dust is a lot of small pieces with origins from everywhere.

In it, dead skin cells are a component that occupies a lot in dust. As in humans, dead skin appears continuously, so wherever there are people, there is dead skin. They combine hair, cloth, and hair, and become "home dust".

If so, see that dust is not the same everywhere. Each habitat will have unique material components, creating separate dust particles.

Dust is not the same everywhere.

But not only that, sometimes the dust in this place contains material somewhere else, far away. They are brought by the wind, or by the migration of animals.

Human industrial activities also contribute significantly to the dust component. Thanks to this, dust can contain cement powder, slippery rubber, and other chemicals suspended in the air .

The combination of dust components can be used as a geographic "fingerprint" form. For example, in Spain where there is a large reserve of calcium carbonate minerals, dust in this country has 20 times more of this mineral than Nigeria's dust, which has a different geographical character.

Or after big storms, scientists have collected the characteristic dust component of the Sahara desert in London, thousands of miles away.

Thanks to modern equipment, we can now determine the difference in the dust of each house, and this can be of great help to forensic experts.

Not only is a mere sign of the Earth, dust also contains components from the aerospace. When a star explodes, superheated gas evaporates everything around, then dust is formed when matter begins to condense.

They keep floating between stars and galaxies, carrying the material of dead stars, and then acting as bricks to create new bodies.

Every year, tens of thousands of tons of cosmic dust fall to Earth.

Every year, tens of thousands of tons of cosmic dust fall to Earth, mixed with available materials, forming a mixture of dust suspended around each of our houses.

Every movement around us like a star exploding, soil erosion, degeneration of buildings, creatures, and even people, whether fast or slow, eventually turn everything back to the sand. dust.

But then from them new life formed. Knowing that Earth is full of life we ​​know today begins with dust particles with organic ingredients coming from a faraway space out there!

What is dust?

Dust is a mixture of many small pieces of a diameter of a few micrometers to half a millimeter, originating from everywhere - from the universe, the Earth.

They can be sand, dead skin cells, hair, pollen, even . dandruff, and of course the dust mites are under the bed too.