What causes typhoid fever? Typhoid fever is caused by a bacillus named salmonella typhosa. It is found in excreted products. Symptoms of the disease include fever, headaches, chills and sweats. One attack can grant lifelong immunity to a person. It can be prevented by keeping...
Who found the first dinosaur eggs? Dinosaur eggs were first discovered in 1923 in the Gobi desert. The discovery was made by Roy Chapman Andrews. These eggs had been laid more than 100 million years ago. The discovery proved that dinosaurs used to lay their...
Why does alcohol make people drunk? Alcohol stimulates the brain initially but after a while it has a depressing effect and hinders our ability to think, observe and be attentive. We also lose the power to control our moods. Alcohol also paralyzes our inhibitory fibres,...
Who gave the first wedding presents? The story behind this has a fairy tale quality to it. Long ago, a rich girl of Holland wanted to marry a poor but good-hearted miller who was very popular. But the girl’s father was against the marriage and...
What are the elements? Everything on earth is made up of elements. Elements have atoms of only one kind. No two elements are completely alike. Elements have weight and they may be in different forms like solid, liquid, or gas. Some are soluble in water....
What kind of clothes did the Mayans wear? The men folk wore simple loin cloths. In cold weather they also wore a cloak called a ‘manta’. Men had elaborate headdresses decorated with quetzal or macaw feathers. Women wore smock-like dresses. The Mayans also wore hats...
What is recycling? We usually throw away things we no longer need. Paper, plastic, clothes it can be anything. This results in a lot of waste that might be difficult to dispose of. Recycling is the practice of using such materials again instead of throwing...
Why is the internet like a web? Several millions of computers all around the world make up the internet. They are all connected like a huge spider’s web. A computer is connected to a machine called the modem. The modem sends signals to a server....
What was a boneshaker? A boneshaker was one of the first bicycles used by man. It had solid tyres and riding it was not comfortable at all. In fact it made one’s bones shake and hence the name. In 1888, rubber tyres filled with air...
What are puffins? The puffin is a kind of seabird. While many seabirds make nests, the puffin digs a burrow on a cliff top like a rabbit. On occasion it might take over an empty rabbit hole too. It lays its eggs in the burrow...
