The Sun is a yellow dwarf star at the center of our solar system. All the planets in the solar system revolve around the Sun. The Sun and Solar System revolve around the center of … Read more

“Nad Tatrou sa blýska” (English: “Lightning over the Tatras”, ’”Above Tatras is Lightning”‘) is the National Anthem of Slovakia. The origins of it are in the Central European activism of the 19th century. Below we have provided the National … Read more

“Stand and Sing of Zambia, Proud and Free” is the National Anthem of Zambia. The tune is taken from the hymn “Nkosi Sikelel’ iAfrika” (English: “Lord Bless Africa”), which was composed by South African Enoch Sontonga, … Read more

Light has no mass and is not really considered matter. So does it even exist? Of course it is! We cannot live without light. Today, scientists say that light is a form of energy made … Read more

Namibia was the first inhabited place of the San people. They are tribesmen who hunt and gather for a living. Around the 14th century, the Bantu migrated to this area. The area was not explored … Read more

Biomass sounds like a complicated word, but it really isn’t. Biomass is any material made by plants and animals that we can convert into energy. Biomass contains energy stored by the sun. Plants get energy … Read more

Bacteria are tiny creatures all around us. We cannot see them without a microscope because they are so small, but they are in the air, on the skin, in the body, in the soil and … Read more