Science And Interesting News

Why Solar Eclipses Cause Eyesight Loss(Retinopathy) Eclipses are interesting and rare events. Large numbers of people go against the advice of eye specialists and stare directly at the sun to see the cosmic phenomenon more clearly. Despite the darkness, the sun remains particularly dangerous for vision during an eclipse.  The greatest danger of staring directly at the sun during eclipse is retinopathy.  Retinopathy When solar radiation damages the retina of the eye and create dark spots on it, the phenomenon is called retinopathy. The effects of retinopathy appear after 4 to 6 hours, but in some cases they may take up to 12 hours. There is no cure for solar retinopathy, but you should always see a eye specialists for vision problems. Many people will recover from retinopathy in three to six months, permanent damage in the form of visual blindness is also possible. How Retinopathy Occurs? Most solar eclipses are partial solar eclipses. As the name represents, a partial solar ec...

COVID-19 Diagnostic Tests and Their Types As we all know that the whole world is suffering from COVID-19. More than 8 million people are its patients and about half million died from this dangerous disease. First step in the treatment of any disease is its diagnosis and same is the case with COVID-19. A variety of tests are being performed around the world to diagnose corona virus. The methods of these tests differ from each other, as well as the sensitivity of their results. PCR test or Swab test This test is used to diagnose people who are currently ill with Covid 19. This is what we have been hearing about. Principle of Working This test is performed with a sample of mucus that is usually taken from a person's nose or throat. This test can also work on saliva. It searches for the genetic material of the corona virus. The test uses a technology called PCR (Polymerise Chain Reaction), which greatly enhances the presence of viral genetic material. This content can be detected when ...

First Life-Saving Drug for COVID-19 Found Experts in the UK say the successful treatment with the low-dose steroid drug dexamethasone is a "tremendous breakthrough" in the fight against this deadly virus. The drug is part of a larger global treatment trial to see if any of the popular drugs are effective against the corona virus. The use of this drug in the trial reduced the mortality rate by one-third in patients who were on ventilators and by about 20% in patients who were on oxygen. Researchers say that if the drug had been given to patients as soon as the epidemic broke out in the UK, about 5,000 lives could have been saved. In addition, poor countries with a large number of COVID-19 patients can benefit greatly. Research Results About 19 out of 20 people infected with the corona virus recovered without going to the hospital. And most of those hospitalized also recovered, although some needed oxygen or artificial respiration. These are patients who were in critical condit...

4 Viruses like Corona Virus whose Vaccines Still not Prepared Millions of people around the world are waiting for the vaccine. Experts warn that no matter how fast the vaccine development process may take time, it may take time and the vaccine may not be discovered if the situation worsens. The World Health Organization (WHO) said, "We may have to live with the virus". However, the chances of living with the virus can be devastating because of the fact that so far about 7 million people have been infected and more than 400,000 people have died from the infection. The search for a vaccine can continue for years or decades. These efforts may be wasted and may yield good results, as seen in the case of Ebola. Ebola was first reported in 1976. At that time, the death toll was 50 percent. As of the beginning of this year, no vaccine had been developed. The World Health Organization and some other countries have finally approved a vaccine to prevent it. But here we are tal...

Secrets of Longevity(long life) of Blue Zone People There are some areas in the world where people live a very long life. One of them is a town surrounded by rain forests and beaches famous for surfing. The two territories are islands in the turquoise waters of the Mediterranean. Another town is located in the last part of the Algerian Sea in Japan, and the fifth place in the series is a small town in the US state of California, which means beautiful hill. If you want a long and healthy life then these are probably the best areas to be born. Blue Zone Nicoya in Costa Rica, Sardinia in Italy, Ikaria in Greece, Okinawa in Japan and Lomo Linda in California These areas are called the Blue Zone, where they are ten times more likely to live to be 100 years old than the average in the United States. The term blue zone was first coined by Italian epidemiologist Gianni Pace and Belgian demographer Michael Pauline. The two men were researching death rates in Sardinia. During their res...

Megapixels of Camera are not Important for good quality Images:experts Samsung launched the Galaxy S20 plus in 2020 with a 96-megapixel quad camera including 64-megapixel telephoto camera. But is this number really important? Whenever Apple, Samsung or any other brand introduces a new mobile phone, consumers are excited about the screen, the battery and especially the camera. The latest iPhone model, the iPhone 11, has a 12-megapixel camera and the Samsung Galaxy Note 10 has a 16-megapixel camera. Huawei's Mate 30 version has a triple camera system with a 40-megapixel sensor, a 16-megapixel ultra-wide angle and an eight-megapixel telephoto lens. Megapixels and Image Quality No matter how anxious you are for megapixels, the truth is that more megapixels not necessarily gives better quality images. Many users are impressed with this number because 12 megapixels doesn't sound as good as 32 megapixels, even if the camera takes great pictures. And using the same logic, ...

Study on the use of  Hydroxychloroquine for Covid-19 will be resumed.(sources) A major study on a drug called hydroxychloroquine has been withdrawn, saying it could increase the risk of death in patients with the corona virus. The reason for withdrawing the research is due to concerns about the data related to the drug. One of the three authors of the research paper said that a company called Serge Sphere was not allowing independent testing of its data on medicine, so they could not continue their research. As a result of the research, the World Health Organization (WHO) stopped testing this drug used to treat malaria. However, many world leaders, including President Donald Trump, have spoken out in support of the drug. Sapin Desai, chief executive of Surge Sphere and the fourth author of the study, told the Guardian that he was ready to cooperate with an independent inquiry, but that transferring data would violate agreements and privacy with consumers. The article, pu...