Around 12th century, fireworks were invented by China to scare away the evil spirit or devils. Firecrackers mostly have black powder or flash powder with many other metals, which were wrapped in a tight paper tube with a fuse to light the powder. The black […]

Media plays very a important role and has influence in virtually every aspect of our lives. It is considered as the best source to know about the happenings of world. Newspaper, magazine, radio, television and internet are the different types of media. It greatly affects […]

Human beings can detect sound by the using their ears. The ears are divided into three parts, and the human brain is also essential in helping us understand the multitude of sounds and help us to differentiate between the sounds. Human ear Human ear, in […]

There are around 10 raise to the power 71, atoms and around 10 raise to the power 81, invisible mass forming dark matter in an average galaxy. Galaxies are found in large structures known as superclusters, which themselves are massive filaments with immense voids in […]

Odor in your feet is caused basically because of the bacteria which react with the sweat coming out from our feet. It may be amazing for you to know that the bacteria always live on our skin on a regular basis. So why other parts […]

If we go deep into the history of seven days we will find that there is no definite theory of why there are seven days in a week. Everyone has different opinions about it. Some people say that week of seven days was first practiced […]

Half of the moon is always lit by sunlight because it completes one revolution and rotation around its axis in 29.5 days and the other half is in darkness. We are able to see only that part of moon which is receiving sunlight and during […]

Google needs no introduction. A popular search engine with a host of other applications, Google was invented by Sergey Bin and Larry Page in 1996. What started off as a research project by Larry and Sergey when they were pursuing their PhD at Stanford University, […]

The game of quoits is played professionally and can also be played for recreation. This game has quite a number of rules and for official games; the playing arena should be exactly the same as has been specified. However, if you are playing for fun, […]

With instant cameras, you are able to develop photos the moment you click them. The basic function of the instant cameras is the same as in other cameras. Other than that these cameras have the equipment to develop the photos on plastic sheets of film. […]