The Kilauea volcano on the island of Hawaii is certainly the most active volcano on earth. It is followed by Etna in Sicily and Piton de la Fournaise on the island of Reunion. It is difficult to say which other volcanoes should come next in the ranking. However, this is how one might rank the… Continue reading The Most Active Volcanoes on Earth
Category: Earth
How the Deserts Are Formed
Deserts are dry places where little rain or snow falls. Some deserts receive less than 25 mm of rainfall each year, although others can receive much more. There are two climatic phenomena that lead to the aridity that characterizes deserts: the progressive decrease in rainfall and the increase in evaporation. These circumstances occur on one side and the… Continue reading How the Deserts Are Formed
Fossil Fuels – What Are They?
The world as we know it today would not have existed without fossil fuels. They made the industrial revolution possible in the 19th century. Fossils fuels drive today’s economic growth but also contribute significantly to man-made climate change. They originated from forests and microorganisms that existed in earlier geological ages. The origin of the term… Continue reading Fossil Fuels – What Are They?
What are Shooting Stars and where do they come from?
On some nights you can observe a special astronomical event: it looks as if a star is falling from the sky. Superstitious people even think that anyone who sees such a shooting star could wish for something. But what is really behind this phenomenon? Where do shooting stars come from and what are they? Asteroids… Continue reading What are Shooting Stars and where do they come from?
What is a Tsunami? Definition, Facts and Figures.
The word “tsunami” originated in Japan. It means “harbor wave”. The term originated from the impressions of fishermen who had returned to their home port and found it devastated. The destruction hit them completely unprepared because they hadn’t noticed any waves at sea. The word “tsunami” was therefore used to describe the destructive effects of… Continue reading What is a Tsunami? Definition, Facts and Figures.
Why is the Sunset Red?
Sunsets often produce beautiful images. The sky and clouds are painted in different colors – red, pink, yellow, pale blue and even violet. Obviously, all this beauty is possible due to the fact that the setting sun changes its color from bright yellow to orange and even red. But why is this happening? In fact,… Continue reading Why is the Sunset Red?
Let’s say I don’t believe the world is round. How can anyone prove to me that the world is round?
How can anyone prove to me that the world is round? I will skip the obvious answer “there are photos from space”, and move on to the interesting part – how can I, by any means, prove that the earth is spherical and not disk? Here I would like to point out – the Greeks… Continue reading Let’s say I don’t believe the world is round. How can anyone prove to me that the world is round?