If carefully analysed, one gets to understand that countries which have a strong base in science and technology are the ones that developed faster. Nowadays, we have scientists, inventors, engineers and others in the world. The advantage of using machines is machines can do our hard work without human. Science is the systematic study of nature for the purpose of understanding how it affects our lives and the environment while technology makes our lives easier and more comfortable. The food we eat, the instruments we use for communication and the transport we take to move place to place are all related to science. We use technology in transportation, communication, agriculture and industry.For any successful economy, particularly in today’s quest for knowledge based economies, science, technology and engineering are the basic requisites.If nations do not implement science and technology, then the chances of getting themselves developed becomes minimal and thus could be even rated as an undeveloped nation.Basically science is known as the study of knowledge, which is made into a system and depends on analysing and understanding facts.Technology is basically the application of this scientific knowledge.On the other hand, the invention of communication tools such as telephones, facsimiles, mobile phones, televisions and computers help us to communicate with other people easier.The launching of communication satellites makes long distance communication possible.For example, aeroplanes help us to travel around the world in a few hours.Advancement in science makes the cars and motorcycles more powerful, faster and safer.