বইয়ে খোঁজার সময় নাই
সব কিছু এখানেই পাই

Paragraph Group - 78

Paragraph - 386

Coronavirus

Coronaviruses are mainly a big family of viruses that are highly capable of causing illness both in animals and humans. In the human body, several coronaviruses are causing respiratory infections. This infection can range from the common cold to more severe disease such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). To date, the virus has taken around the lives of 3,000 people globally and the currently infected people around the world are over 90,000. The biggest problem with this virus is that it is spreading more than we have expected and the scientists have not yet found out any way to disinfect this virus. The scientific name of the most recently discovered coronavirus disease is COVID-19. There are actually no perfect initial symptoms of this disease in the human body. Sometimes it takes a longer time to detect the disease in the human body, though the presence of the virus is from long before. The primary symptom of this disease is cold, try coughing, fever, tiredness, etc. for several days. Some patients may experience nasal congestion, aches and pains, runny nose, sore throat or diarrhoea. Though there is a full cure from the disease by proper treatment, a lot of people have died because of this disease at the same time. So we should all be careful and keep ourselves safe from this virus and disease. Coronavirus is first seen in Wuhan, China, on 31st December 2019, but it has already spread in many countries across the world. The virus is very deadly and it can spread at a faster speed than we expect or imagine. We can see the proof of its ability to spread at a faster speed if we look at the list of infected countries around the world. After spreading to some other areas of China, this virus has also spread to many other countries such as Japan, Korea, America, France, Malaysia, Iran, India, Italy, Germany, Spain, Switzerland, Singapore, UK, Hong Kong, Sweden, Canada, Vietnam, and many other countries. Several reports are showing that the number of Coronavirus infected countries is now almost 115 countries and territories. There is not yet any vaccine, drug, or treatment invented for Coronavirus or COVID-19. That is why this is the highest tension point for all. So if anyone gets infected by this virus, he or she should receive care to relieve symptoms and if it results in serious illness than he or she should be hospitalized. Scientists are trying to come up with possible vaccines and some specific drug treatments that are now under investigation.

Paragraph - 387

Philosophy

Once the strongest men were willing to die for philosophy : Socrates chose to be her (philosophy’s) martyr rather than live in flight before her enemies; Plato risked himself twice to win a kingdom for her; Marcus Aurelius loved her more passionately than his throne, and Bruno burned at the stake for loyalty to her. Once thrones and papacies feared philosophy and imprisoned her votaries lest dynasties should fall. Athens exiled Protagoras, and Alexandria trembled before Hypatia; a great pope courted timidly the friendship of Erasmus; regents and kings hounded Voltaire from their lands, and fretted in jealousy when at last all the civilized world bowed before the sceptre of his pen. Dionysius and Dionysius’s son offered Ploto the mastery of Syracuse; Alexander’s royal aid made Aristotle the most learned man in history; a scholar-king lifted Francis Bacon almost to the leadership of England, and protected him from his enemies; and the great Frederick, at midnight when all his pompous generals had gone to sleep, held high revelry with poets and philosophers, envious of their boundless realms and their timeless sway. 

Paragraph - 388

Linguistics

Linguistics is the science of language. In using language, people employ principles of grammar, the complex and subtle rules of language use, without having to consciously know the principles. Part of the work of linguistics is to discover or establish those principles. Another part of the work of linguistics is to compare and contrast languages, their grammars, pronunciations, how meaning is created and how the languages are used. Modern linguistics emerged as a distinct field of study in the 19th century while colonialism was flourishing, world travel was increasing, and European cultures were encountering other cultures and languages. Linguists made an effort to study the languages that they were encountering. They have often been called upon to ease confrontations between cultures by helping people to learn foreign languages as quickly as possible. 

Paragraph - 389

A Boat Journey

We started our journey by boat in the morning on Friday last. The gentle morning breeze welcomed us when we stepped into the boat. The sights on either side of the river were very charming and these were, as if, a feast for our eyes. Our mind leaped in joy when we saw the vast green paddy-fields touching the horizon. Birds were flying over our head now and then. Fishermen were at work here and there. We saw some boats big and small sailing up and down the river. When a steamer passed by, it caused big waves, and all the boats nearby were tossed violently. At the bathing ghats, men and women were bathing and children were swimming about. This touch of life added a beauty to the river. But the river become loveliest in the evening when the waves danced and sparkled under the crimson rays of the setting sun. We recalled the poetic line of Keats : 
“The day so soon has glided by 
Even like the passage of an angel’s tear.”

Paragraph - 390

Alchemy

In the narrow sense of the word, alchemy is the pretended art of making gold and silver, or transmuting the base metals into the noble ones. The idea of such transmutation probably arose among the Alexandrian Greeks in the early centuries of the Christian era; thence it passed to the Arabs, by whom it was transmitted to the Western Europe, and its realization was a leading aim of chemical workers down to the time of Paracelcus and even later. Alchemy in its wider and truer significance stands for the chemistry of the middle ages. The idea of transmutation, in the country of its origin, had a philosophical basis, and was linked up with the Greek theories of matter there current. Thus, supplying a central philosophical principle, it is to some extent unified and focused chemical effort, which previously, so far as it existed at all, had been expended on acquiring empirical acquaintance with a mass of disconnected chemical processes. Alchemy in this sense is merely and early phase of the development of systematic chemistry; in Leibig’s words, it was “never at any time anything different from chemistry”.

No comments