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  Solar Panels: A Clean and Renewable Source of Energy Introduction Solar panels are devices that convert sunlight into electricity. They are made up of photovoltaic (PV) cells, which are semiconductor materials that absorb sunlight and generate an electric current. Solar panels are a clean and renewable source of energy, and they are becoming increasingly popular as a way to reduce our reliance on fossil fuels. Who Invented Solar Panels? The first solar cell was invented in 1883 by Charles Fritts. Fritts's cell was made of selenium and was only about 1% efficient. However, his invention paved the way for the development of more efficient solar cells. In the early 1950s, scientists at Bell Labs developed the first silicon solar cell. Silicon is a much more efficient material than selenium, and silicon solar cells quickly became the standard for solar panels. How Are Solar Panels Made? Solar panels are made up of many individual PV cells. The cells are connected in a series, which m...

The Ultimate Guide to Rice: Cooking, Nutrition, and Beauty Benefits Introduction: Rice is a staple food for billions of people around the world. It is a versatile ingredient that can be used in a variety of dishes, from simple side dishes to complex main courses. Rice is also a good source of nutrients, including protein, fiber, and vitamins. In this article, we will discuss how to cook rice, the nutritional benefits of rice, and how to use rice water for beauty purposes. How to Cook Rice There are many different ways to cook rice. The most common method is to use a rice cooker. However, you can also cook rice on the stovetop or in the oven. Here are the basic steps on how to cook rice: Rinse the rice in a fine-mesh strainer until the water runs clear. Add the rice to a pot with a tight-fitting lid. Add water or broth to the pot, following the ratio of 1 cup of rice to 2 cups of water or broth. Bring the water to a boil, then reduce the heat to low and simmer for 15-20 minutes, or ...

How to make mango pickles and hairmich pickle at home   Mango Pickle Mango pickle is a popular Indian condiment made with green mangoes, spices, and herbs. It is a delicious and versatile pickle that can be enjoyed with a variety of dishes, such as rice, roti, or paratha. There are many different recipes for mango pickle, but here is a basic recipe that you can follow: Ingredients: * 2 green mangoes, peeled and diced * 1 teaspoon turmeric powder * 1 teaspoon salt * 1/2 teaspoon red chili powder * 1 tablespoon mustard seeds * 1 tablespoon coriander seeds * 1 tablespoon cumin seeds * 1 teaspoon fenugreek seeds * 1/2 teaspoon asafoetida powder * 1/4 cup oil * 1/4 cup vinegar Instructions: 1. In a bowl, combine the mangoes, turmeric powder, salt, and red chili powder. Mix well. 2. In a separate pan, heat the mustard seeds, coriander seeds, cumin seeds, fenugreek seeds, and asafoetida powder over medium heat until they start to crackle. 3. Add the oil to the pan and heat until it is hot...

Electricity: What is it, who discovered it, and how to pay your bill online Electricity is a form of energy that is created by the movement of electrons. It is used to power our homes, businesses, and devices. Electricity was first discovered in ancient times, but it was not until the 1700s that scientists began to understand how it worked. Benjamin Franklin is credited with discovering electricity in the 1700s with his kite experiment. What is electricity?  Electricity is a form of energy that is created by the movement of electrons. Electrons are tiny particles that are found in all atoms. When electrons move, they create an electric current. This current can be used to power our homes, businesses, and devices. Who discovered electricity? Many people contributed to the discovery of electricity, but Benjamin Franklin is generally credited with being the first person to understand how it worked. In 1752, Franklin conducted his famous kite experiment, in which he flew a kite with a ...

Water: The Essential Resources  What is Water? Water is a transparent, odourless, tasteless liquid that is essential for life. It covers about 71% of the Earth's surface and is found in all three states of matter: solid (ice), liquid, and gas (vapor). Water is a very versatile substance. It can be used for drinking, cooking, bathing, cleaning, and many other purposes. It is also an important part of many industrial processes. How to Save Water There are many ways to save water. Here are a few tips: * Turn off the faucet when you brush your teeth or shave. * Take shorter showers. * Fix leaks in your plumbing. * Water your lawn and plants early in the morning or late in the evening, when the water will evaporate less. * Collect rainwater for use in your garden or to water your plants. * Use a water-efficient washing machine and dishwasher. * Recycle and compost, which will reduce the amount of water used to produce goods. How Much Water to Drink in a Day The amount of water you need ...

Water pollution Water pollution is the contamination of water bodies by substances that make the water unusable for drinking, cooking, cleaning, swimming, and other activities. Pollutants include chemicals, trash, bacteria, and parasites. All forms of pollution eventually make their way to the water. • Point source pollution- comes from a specific location, such as a factory, farm, or sewage treatment plant. • Nonpoint source pollution- comes from a variety of sources, such as runoff from farms, streets, and lawns. The main causes of water pollution include: • Sewage: Untreated or partially treated sewage is a major source of water pollution. It can contain bacteria, viruses, and parasites that can make people sick. • Industrial waste: Factories and other businesses often release wastewater into rivers, lakes, and oceans. This wastewater can contain chemicals, heavy metals, and other pollutants that can harm wildlife and make the water unsafe for people to use. • Agricultural runoff: ...