General Science Questions and Answers No. Question Answer 1 The theory of relativity was propounded by Albert Einstein 2 The principal metal used in manufacturing steel is Iron 3 An altimeter is used for measuring Altitude 4 Oology is the study of Bird Eggs 5 Radioactivity was discovered by Henry Bacquerel 6 The metal used in storage batteries is Lead 7 The instrument used to measure the relative humidity of air is Hygrometer 8 Barometer was invented by Torricelli 9 The unit of power is Watt 10
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Describe an important 21st century invention and explain how it has changed peoples lives. Day by day technology makes huge advances and makes enormous improvements which change our life continuously without us even noticing. Computers have now weaved in our everyday life and it’s something that we can’t do without‚ have you ever considered your daily life without using a computer? The very first step to this huge technological improvement was in 1837‚ when Charles Babbage designed the very
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Cars today are very common but about 200 years ago they were thought to be just some kind of crazy invention. The origin of the automobile can be traced back to Europe‚ but it became a major form of transportation in the United States. Most European cars were hand made‚ and they were very expensive so not that many people could afford to buy the cars. Nicolas Joseph Cugnot a French military engineer built the first steam car or a self propelled vehicle in 1769. One was designed to carry passengers
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Thermionic valves which were once used in computers‚ radios‚ and TVs were replaced by transistors. Compared to thermionic valves transistors: ~Had much smaller sizes (miniaturization) ~Much cheaper and more reliable ~Used less power When transistors were first developed they were about 0.5 cm3 in volume It was found that transistors could also be miniaturized by using silicon doped with arsenic/gallium. Several million transistors could now be placed on area of 1cm3. This had enormous consequences
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Today‚ many high school students are entering the work force. Students are becoming more and more eager to start working and become independent. Although a beneficial balance of school and extracurricular activities as well as employment can be productive‚ it is very difficult to maintain. If a student is intending on going to college‚ he or she should only hold very minimal and flexible employment. A part-time job interferes with school in many situations. Even if the job is held after school and
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The 19th and 20th centuries are very rich about inventions that changed our lives. The automobile is one of those inventions changed people’s lives. Short after its invention automobile became a necessity in daily life more than being luxury or a symbol of nobility. Today the numbers of cars are close to half of earth’s population. Almost every family in developed countries owns a car. The automobile has had the greatest effects on our lives in last two hundred years because it is a necessity‚ it
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Discuss the concept of creativity‚ invention and innovation and their complimentary roles in the field of entrepreneurship. Which one do you think is most vital for the entrepreneur? INTRODUCTION Creativity‚ invention and innovation are not the same thing. To create a successful product or business‚ the entrepreneur needs to recognize the differences‚ and combine them in the right mix. These concepts are closely linked together. They make us think of something new‚ something really different
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The First World War‚ also known as ‘The Great War’ due to its immense number of casualties and also large amount of countries involved‚ took place in 1914-1918. The spark that started the whole war occurred when Arch Duke Franz Ferdinand‚ the heir to the Austro Hungarian throne‚ was assassinated on the 28th of June‚ 1914. The First World War was pernicious in many ways; however there are three main reasons the Great War was so deadly: the new types of weapons‚ lack of successful leadership and the
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Standard pieces of equipment in most homes‚ watching television has become a standard activity for most families. Although there are many excellent programs‚ many people think television is one of the worst inventions of modern times. All too often‚ television is harmful because of the shows it broadcasts‚ the effect it has on people‚ and the way it is used in homes. First‚ heavy TV viewing leads to poor school performance. Most television broadcasters show a variety of programs 24 hours a day‚
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Headlights‚ airbags‚ and wheels theft are becoming the hottest and most stolen car items. They have found that it’s not financially related. It could be a jealous neighbor or acquaintance that will steal the wheels in spite. Basically if I can’t have them then you won’t either. As for wheels‚ I think the reason why theft is so high is because tires and rims are very high in price. The thieves can easily steal them and then place them up for sale on EBAY or other related classified ads. I actually
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