Why were sauropods so huge? The greater part of the sauropod’s body was filled with its guts. Sauropods could eat up to 200 kg of plants in a day. For this, they required a big stomach and long intestines for digestion. This was what made...
Who was Confucius? Confucius was also known as K’ung Fu-tzu. He was born in China in 551 BC. He was a great thinker who was of the opinion that an emperor was like a father to his people and that the people should love and...
When did man first build houses? Early man lived in houses of wood or grass houses depending on the climate. Then, people learnt to make mud plaster thousands of years ago by plastering a sticky mixture of clay or mud over walls made of loosely...
Why did Egyptians have funeral barges? The Egyptians believed in life after death. When the pharaohs died, their mummies were placed on highly decorated boats because it was believed that they would be travelling on them to the next world. The boat was dragged to...
How do snails get their shells? Snails have a shell that is cap-shaped but twisted into a spiral. Its shell is made of a form of limestone and is built by the snail. Some glands of the snail take limestone from the water and deposit...
How does a fax machine work? In a fax machine, a document is scanned, tiny sections at a time. Signals are sent to another fax machine telling it whether the section is light or dark. These signals are converted back into light and dark sections...
What are the fine arts? Fine arts include painting, sculpture, literature, dance, music and architecture. Generally fine arts are not functional in purpose. They are enjoyed or pursued for the sake of beauty. But architecture does come of use in the construction of buildings which...
What are lichens? Lichens are plants but they do not have roots, leaves or flowers. There are around 16,000 species of lichens. They are found in almost all places. Lichen is actually two plants growing together. One is a fungus and the other is an...
How many kinds of apples are there? Apple is one of the earliest fruits raised by man. Even 2,000 years ago, many varieties of apples were available in Europe. Apple growers experiment to grow new varieties. In the UK alone, there are over 2,000 kinds...
Were there surgeries in ancient times? Surgeries have been performed in ancient times too but the surgical instruments were rather primitive. Flints were used for surgeries and even a dangerous procedure like opening the skull has been performed with it. The teeth of fish and...
