Papermaking

Papermaking

Paper was invented more than two thousand years ago.

Tehnoloģijas

Atslēgvārdi

papīra ražošana, papīrs, ražot, celuloze, šķiedra, koks, pārstrāde, koksnes ražošana, meža iznīcināšana, vides piesārņojums, papīra preces, beta-D-glikoze, glikoze, ūdens, polisaharīds, Enerģija, vide, tehnoloģija

Saistītie vienumi

Cellulose (C₆H₁₀O₅)n

The building material of the cell walls and fibres of plants.

Beta-D-glucose (C₆H₁₂O₆)

One of the stereoisomers of D-glucose.

Cellobiose (C₁₂H₂₂O₁₁)

Cellobiose is the basic structural unit of cellulose.

Cement production

This 3D scene presents the steps of the cement manufacturing process.

Deforestation

Deforestation has a negative impact on the environment.

Gutenberg's press (Mainz, 15th century)

Life magazine picked Gutenberg's invention of mechanical movable type printing as the most important event of the second millennium.

Hydroxide ion (OH⁻)

A compound ion formed when a water molecule releases a proton.

How does it work? - Ballpoint pen

The invention of the ballpoint pen made writing a lot easier.

Watermill

Machines converting the energy of flowing or falling water into useful forms of power were already in use in the Middle Ages.

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