Science Ziton

  The story of Rambutan Rambutan is a wonderful fruit that can be only found from June to August in Sri Lanka. Other than Sri Lanka rambutan fruit can be found in Thailand, Malaysia, Indonesia, the Philippines, and Australia. Some countries are exporting Rambutan to other countries also. The scientific name of the Rambutan is Nepthelium Lappaceum . The Rambutan tree is a medium-sized tropical tree and is native to Southeast Asia. The term “Rambutan” has derived from a Malay word which is the meaning is “hair”. Rambutan fruit is oval-shaped peel is reaorful with bright red or yellow colors. There are different colors of rambutan peel according to different varieties. The fruit is single-seeded and it is fleshy. It has a sweet, and acidic flavor which is an addicting flavor. New varieties of rambutan trees are produced using grafting, air-layering, and budding techniques in according to get better cultivation. Rambutan fruit Anatomical characteristics of whole rambutan ...

  Happy chemical - dopamine Our feelings are unique, but the molecules that cause our feelings are the same as everyone else’s. Our life experiences are unique, but it overlaps with others because each brain focuses on its survival. You may not think you’re focused on your survival. Your aim is loftier when you talk to yourself in words. But your happy chemicals respond to improvements in your survival prospects, however, you’ve learned to define them. A student gets a surge of dopamine when he sees the highest results on his result sheet. A gamer is fueled by dopamine as he wins his game. “I did it!” the brain tells the body. If an ape climbs a high tree for a delicious mango, dopamine spurts as he nears the reward. That tells his body to release the reserve tank of energy, which helps him do what it takes to meet his needs. He doesn’t say “I did it!” in words, but neurochemicals create that feeling without the need for words. Dopamine helped our ancestors survive by m...

Minerals in the human body “Minerals help our bodies develop and function.  They are essential for good health. Knowing about different minerals and what they do can help you to make sure you get enough of the minerals that you need.” Major minerals present in the human body are sodium, potassium, chloride, calcium, phosphate, and magnesium The daily body requirements for minerals range from gram (sodium, calcium, chloride, phosphorus) to the milligram (iron, iodine, magnesium, manganese, molybdenum) to microgram (zinc, copper, selenium, other trace elements) amounts. Many are essential for normal biological function. Sodium and chloride are important for the maintenance of osmolality of the extracellular fluid and cell volume. Sodium participates in electrophysiologic phenomena and, together with potassium, is essential for maintaining transmembrane potential and impulse transmission. Potassium is the main intracellular cation. Potassium is contained in vegetables and ...

  Photosynthesis and Amino acid production in Plants   Green plants absorb and transform solar energy into chemical energy through the process of photosynthesis. During this, CO2 is reduced to simple carbohydrates and O2 is liberated into the atmosphere. This ability to capture the energy of sunlight and utilize it in manufacturing food is a unique property of green plants. Photosynthesis is the only process in the biosphere by which organic compounds are synthesized from inorganic raw materials. It results in the production of sugars (Carbohydrates).  Sugars not only serve as a source of energy but also as starting materials for other important synthetic reactions. (Amino acids, proteins, fatty acids, and lipids).   Energy + 6 CO2 + 12 H2O    →    C6 H12 O6 + 6 O2 + 12 H2O Chloroplasts   Each chloroplast is surrounded by a double membrane system or envelope that controls the passage of molecules in and out of it. The interior of the chl...

  The story of the matchbox In day-to-day life, we are using matches for several kinds of things. Especially housewives to light the stoves. In a house, at least one match will be lighted up in a day. But a lot of us don’t know the story behind the matches or the matchbox. So I decided to find about what is the actual mechanism and history behind this matchbox. History of match The invention of fire was a turning point for humankind. So in history, people try to get provided fire in a convenient method in several phases. In 1828, an Englishman, Samuel Jones patented one of the first kinds of matches. It consists of a glass bead with sulfuric acid and a sugar coat with an oxidizing agent. To ignite the match the bead should be broken using a pair of pliers. Then the acid will release and ignition will happen due to an exothermal reaction in the surrounding combustible materials. Due to the expenses, these kinds of chemical matches were unable to make. So later a friction m...

  Tear gas is a famous word that will be heard during picketing. I remember when I was attending pickets at the university I and my friends were expecting the police will use tear gas to disperse the people and we were willing to get that experience. I heard that it is unbearable when your eyes are exposed to tear gas. These days there are so many unfortunate events between police and the ordinary people in Sri Lanka due to the financial crisis of the government, oil and electricity problems, and the rising cost of living. And several times police have used tear gas to disperse people.   What is tear gas? Tear gas is said to be not a gas. It is a pressurized powder that may form a mist-like environment when it is exposed to air. It is a collection of chemicals. It says that synthetic organic halogens are used for making tear gas. The most commonly used chemical is CS gas, 2-chlorobenzalmalononitrile . Other chemicals are included   pepper spray  (OC gas),  PAVA...