This article may need to be cleaned up. It has been merged from Radio History. Invention of radio The idea of wireless communication predates the discovery of "radio" with experiments in " wireless telegraphy " via inductive and capacitive induction and transmission through the ground, water, and even train tracks from the s on.
References Introduction Throughout History humans have looked to the sky to navigate the vast oceans, to decide when to plant their crops and to answer questions of where we came from and how we got here.
It is a discipline that opens our eyes, gives context to our place in the Universe and that can reshape how we see the world. When Copernicus claimed that Earth was not the centre of the Universe, it triggered a revolution. A revolution through which religion, science, and society had to adapt to this new world view.
Astronomy has always had a significant impact on our world view. Early cultures identified celestial objects with the gods and took their movements across the sky as prophecies of what was to come.
Take, for example, the names of the constellations: Andromeda, the chained maiden of Greek mythology, or Perseus, the demi-god who saved her. Now, as our understanding of the world progresses, we find ourselves and our view of the world even more entwined with the stars.
The discovery that the basic elements that we find in stars, and the gas and dust around them, are the same elements that make up our bodies has further deepened the connection between us and the cosmos. There are still many unanswered questions in astronomy.
Current research is struggling to understand questions like: Pursuing these questions is a fundamental part of being human, yet in today's world it has become increasingly important to be able to justify the pursuit of the answers. The difficulties in describing the importance of astronomy, and fundamental research in general, are well summarized by the following quote: Transferring knowledge is also easy.
But making new knowledge is neither easy nor profitable in the short term. Fundamental research proves profitable in the long run, and, as importantly, it is a force that enriches the culture of any society with reason and basic truth.
Although we live in a world faced with the many immediate problems of hunger, poverty, energy and global warming, we argue that astronomy has long term benefits that are equally as important to a civilized society. Several studies see below have told us that investing in science education, research and technology provides a great return — not only economically, but culturally and indirectly for the population in general — and has helped countries to face and overcome crises.
The scientific and technological development of a country or region is closely linked to its human development index — a statistic that is a measure of life expectancy, education and income Truman, Robert Aitken, director of Lick Observatory, shows us that even in there was a need to justify our science, in his paper entitled The Use of Astronomy Aitken, His last sentence summarizes his sentiment: A wealth of examples — many of which are outlined below — show how the study of astronomy contributes to technology, economy and society by constantly pushing for instruments, processes and software that are beyond our current capabilities.
The fruits of scientific and technological development in astronomy, especially in areas such as optics and electronics, have become essential to our day-to-day life, with applications such as personal computers, communication satellites, mobile phones, Global Positioning Systemssolar panels and Magnetic Resonance Imaging MRI scanners.
Although the study of astronomy has provided a wealth of tangible, monetary and technological gains, perhaps the most important aspect of astronomy is not one of economical measure.
Astronomy has and continues to revolutionize our thinking on a worldwide scale. In the past, astronomy has been used to measure time, mark the seasons, and navigate the vast oceans.
It inspires us with beautiful images and promises answers to the big questions. It acts as a window into the immense size and complexity of space, putting Earth into perspective and promoting global citizenship and pride in our home planet.
On a more pressing level, astronomy helps us study how to prolong the survival of our species. Only the study of the Sun and other stars can help us to understand these processes in their entirety.
In addition, mapping the movement of all the objects in our Solar System, allows us to predict the potential threats to our planet from space. Such events could cause major changes to our world, as was clearly demonstrated by the meteorite impact in ChelyabinskRussia in On a personal level, teaching astronomy to our youth is also of great value.
It has been proven that pupils who engage in astronomy-related educational activities at a primary or secondary school are more likely to pursue careers in science and technology, and to keep up to date with scientific discoveries National Research Council, This does not just benefit the field of astronomy, but reaches across other scientific disciplines.Wireless Local Area Networks (WLANs) Definition: A wireless LAN (or WLAN, for wireless local area network, sometimes referred to as LAWN, for local area wireless network) is one in which a mobile user can connect to a local area network (LAN) through a wireless (radio) connection.
Wireless Area Networks Essay - Wireless Area Networks Wireless technology has become an increasingly crucial part of today's world. From health care and retail to academia across the world, wireless systems are improving the rate and ease with which data is sent and received.
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Open Access - free for readers, with article processing charges (APC) paid by authors or their institutions.; High visibility: Covered in the Emerging Sources Citation Index (ESCI. Wireless Area Networks Wireless technology has become an increasingly crucial part of today's world.
From health care and retail to academia across the world, wireless systems are improving the rate and ease with which data is sent and received.