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Environmental Challenges, Cosmic Mysteries, and Health Insights: Science and Technology Update – November 26, 2023

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    Current Affairs Wala
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Introduction

Welcome to our in-depth review of critical developments in the realms of science and technology as of November 26, 2023. In this edition, we bring into focus the concerning trends in Antarctica's ozone layer depletion and its far-reaching environmental impact. We delve into the fascinating world of mineralogy, exploring new findings on dolomite crystal formation. The enigma of an extremely energetic cosmic ray without an identifiable source also takes center stage in our astronomical segment. Additionally, we shed light on important health topics like measles and dyslexia, emphasizing the importance of awareness and research. Join us as we navigate these intriguing and vital scientific and health issues, offering a comprehensive understanding of the latest discoveries and their implications.

SCIENCE AND TECHNOLOGY

ANTARCTICA'S OZONE HOLE EXPANDS MID-SPRING SINCE 2001

  • The core or middle stratospheric layer of the attractive ozone in mixed frame has been experiencing reduction since 2004 though there are some repeated recovery trends in the ozone hole.
  • The Montreal protocol does it method a list of controlled ozone depleting substances that we banned from future production in 1987.
  • But in the last 3 years 2020 to 2022 the world has witnessed the emergence of large and long left ozone holes over Antarctica in mid-spring. Ozone layer depletion - currentaffairswala
  • The middle stratosphere has been terminated by continuous and significant ozone reduction since 2004 which is around 26% laws of the corrosion layer.
  • This change can be driven by dynamical changes in the mesosphere and the finding sources of the changes in the southern hemispheric atmosphere contributing to a persistent Antarctic ozone hole. All the layers of the atmosphere - currentaffairswala

CYCLING OF SOLUTION NEEDED FOR DOLOMITE CRYSTALS TO GROW

  • As per the simulation's predictions, frequent cycling of a solution between supersaturation and under saturation can speed up dolomite growth by up to 10 million times.
  • Supersaturation is a state of a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances.

BASIC INFO ABOUT DOLOMITE

  • Dolomite is a type of limestone rich in magnesium carbonate and calcium carbonate.
  • Dolomite is made up of 60% of calcium carbonate and 40% of magnesium carbonate.
  • However sometimes it might also contain heavy metal such as lead. Dolomite - currentaffairswala

EXTREMELY ENERGETIC COSMIC RAY WITH NO SOURCE DETECTED

  • An extremely energetic cosmic Ray that is an extra Galactic particle with an energy exceeding about 240 exa electron volts has been detected. Why did telescope Array's experiment surface structure?
  • But the direction of arrival has no obvious source.
  • Though Low energy cosmic rays Eminem from the sun, the origins of rare ultra high energy Cosmic rays are thought to be related to most energetic phenomena and the universe such as Black hole formation.
  • Extragalactic cosmic rays are very high energy particles that flow into the solar surface from beyond the Milky way galaxy.
  • While at low energy the majority of Cosmic rays originate within the galaxy at high energy the cosmic ray spectrum is to be dominated by these extra Galactic Cosmic rays. Cosmic Ray - currentaffairswala

WHAT IS MEASLES?

  • It is a contagious disease that is caused by a virus with splits to the air the infected person causes or sneezes.
  • The basic symptoms of measles start with a cough, running nose, red eyes and fever and rashes or tiny spots all over the body or sometimes in some thoughts.
  • According to the World health organization vaccination averted 56 million deaths between 2000 and 2021 for this disease.
  • The vaccine protects against three diseases: measles, mumps and rubella. Measles

WHAT IS DYSLEXIA?

  • Dyslexia is basically a learning disorder that involves difficulty in reading due to the problems identifying speech sounds and learning how they relate to letters and words it is also known as reading disability.
  • It is a result of individual differences in areas of the brain that processes language.
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