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In the mountains of Greece, monasteries were built on top of steep rocks. These monumental works are part of the world heritage today.
How do tortoises mate with each other having those giant shells? It might be hard to imagine at first, but if you watch this video, you’ll see.
We spray a transparent liquid on the petals of a flower and watch it turn purple. Let’s learn the chemical trick behind this phenomenon.
We also utilize the degradable nature of sodium bicarbonate in our everyday kitchen life: it is the basis for baking powder.
Let’s make hydrogen gas using zinc powder and hydrochloric acid and see what lays the foundations for hydrogen-fuelled cars in the distant future.
A century of war between England and France marked the end of medieval European society.
Decomposition of ammonium dichromate by heating.
This video presents the large-scale farming of rose bushes.
Art Nouveau did away with all the previous eclectic styles in architecture and paved the way for the modern architecture of the 20th century.
