Climate change is the change in average patterns of natural events or phenomena such as temperature and rainfall over time in a region or around the world. Changes may occur naturally as well as occur due to human activities posing threats to nature. How Climate Change Occur / Causes of Climate Change There has been a drastic increase in climate change since the industrial revolution around the globe. Greenhouse gases are the primary cause behind these climatic changes. These gases trap and hold light energy reaching the earth’s surface from the sun, and radiate it in the form of infrared heat. Eventually, this process causes an increase in the average temperature of the atmosphere of our globe. Carbon dioxide (CO2), methane (CH4), nitrogen oxide (N2O), and chlorofluorocarbons (CFCs) are major greenhouse gas contributors. Carbon DiOxide (CO 2 ) . CO2 is generated due to natural processes (i.e. volcanic eruptions) as well as through human activities (deforestation and burning...
Historical Background of Magnets Without the use of magnetism, we can’t even imagine the existence of light and there wouldn’t be most of the technology that we see today, use today, and utilize in our daily routine. The Greeks were the first to discover magnets. There was a village named Magnesia in an ancient Greek city in Ionia (we know this stone as Magnet today because of the village of "Magnesia"), where a shepherd found a magnetic stone (Lodestone) and observed the magnetism when nails from his shoes and metal pieces in his stick got attracted to the stone. People began to believe it was a healing element. People used to use the stars and the sun to find their way around. But after the discovery of magnets, the Chinese were the first to use them as a tool for magnetic compasses. Magnets come in different sizes - as large as the earth and as small as the cell. Yes, you read it right. Our planet Earth is itself a big giant Magnet. The h...