children books

The lock was first developed by the Greek, the Roman and the Egyptian civilizations. The first lock was found by an archeologist in Khorsabad palace in the city of Nineveh and estimated of being 4000 years ago. People are much concerned about their security no matter what the era is. Locks were known before Christ’s […]

It was the year after 1800s, which saw the arrival of liquid soap in the market. Patented by William Shepphard on 22 August, 1865, the first liquid soap was manufactured only in the year 1898 by a firm called as B.J. Johnson Soap Company whose first liquid soap was named Palmolive. Although a company, called

The first lighters were nothing but flintlock pistols that were first invented in the 16th century. One of the primary lighters ‘Dobereiner’s lamp’ which was invented in the year 1823 by Johann Wolfgang who was a German chemist. The lighter worked on the basis of the reaction of hydrogen to platinum sponge. This lighter was

The modern lie detector was invented by a medical student in the year 1921 called as John Larson of the University of California. It was also named as polygraph for the instrument measures skin conduc-tivity blood pressure, pulse and respiration, which are commonly suspected to change involuntarily when an individual lies. It was actually in

The theoretical foundations for laser were first established by Albert Einstein in his paper entitled Zur Quantentheorie der Strahlung in 1917. He did this by re-deriving the Max Plank’s law of radiation. Later in 1947, Willis Lamb and R.C. Retherford managed the first demonstration of stimulated emission. The term laser was coined as a short

The most carrying thing by any office person is the laptop. The first laptop was designed in 1979 by William Moggridge. The year 1989 was successful for laptop inventors; finally there was introduced Compaq computer that designed its first laptop PC called Compaq LTC. People can carry them anywhere, whether in business travel. The work

The first electric light was made in 1800 by Humphry Davy, an English scientist. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. In 1860, the English physicist Sir Joseph Wilson Swan (1828– 1914) was determined to produce long-lasting electric light. He found that a carbon paper

Levi Strauss is said to be the one who invented jeans, although the material is said to be associated with Italy from where the material ‘Jeane’ was first exported and produced. It is said that he once met a young miner in the year 1852 who needed a pair of strong pants. After he had

The new technology, I-phone, was disclosed by Steve Jobs on 9 January, 2007, and released in the market on 29 June, 2007. The touch-and-gesture features of the I-phone, attract the people with its unique outlook. The I-phone allows audio conferencing, call holding, call merging, caller ID, and unites with other network features and I-phone functions.

Music is loved always but it was the Apple Inc. who has made it possible to be carried anytime, anywhere by anyone via one of their most useful inventions called as I-pod in the year 2001. In a layman’s word, it can be said as a portable media player. Now, the market is flooded with

The Internet, which transformed the world into a global village, has its roots of invention way back to the development of computers in 1950s. In 1973, the Internet was initially developed by Vinton Cerf, an American computer scientist as part of a project sponsored by the Department of Defence Advanced Research Projects Agency of the