Science facts - A Journey Towards Science

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 The apple of Newton's eye and the axis of Einstein's work, gravity is weaker than you think, and stranger than you think. Here are 20 facts about one of the most famous physical forces in the universe: 1. (Obi-Wan Kenobi) The well-known character who appeared in the popular movie "Star Wars" said of the physical forces that they “surround us and penetrate us, but rather connect the galaxy together.” It is possible that he was talking about gravity. The attractive properties of this force hold the galaxy together, but it also penetrates us, expanding physically inside us, and binds us to the Earth.   2. Unlike other physical forces, with both luminous and dark sides, gravity is not dual in effect; Gravity only attracts, not repels. 3. NASA is trying to develop a Tractor beams that can move physical objects, a machine that creates attractive forces that outpace gravity. 4. Passengers on the roller coaster and the International Space Station are in hypogeic states - inc...

 Information and facts about iodine, which is one of the basic and essential elements for life. It is known for its vital role in the production of thyroid hormone in humans as well as in all other vertebrates. Iodine deficiency may lead to serious health problems, including goiter or an enlarged thyroid gland, and disability. Psychosis, and congenital iodine deficiency syndrome, or cretinism. Learn what iodine is and why it is important. What is iodine And iodine - as a pure element - is not a metal with a bright black-purple color of a solid nature under standard conditions, and it is one of the elements that sublimates (that is, turns from a solid state to a gaseous state without passing through a liquid state) easily to give purple smoke, and although it is not a metal, However, it does show some mineral properties. Iodine is classified within the halogens, which is a subset of the highly chemically reactive elements (group 17 in the periodic table), and are present in the envi...

 Electromagnetic radiation is a type of energy that surrounds us from everywhere, and takes many forms, such as: radio waves, (microwaves), X-rays, and gamma rays, and sunlight is also a form of electromagnetic energy, while visible light is considered A small fraction of the electromagnetic spectrum, and it has a wide range of electromagnetic wavelengths. Electromagnetic theory. It was previously believed that electrical and magnetic waves are separate forces, however, in 1873 AD, the Scottish physicist (James Clark Maxwell) developed a unified theory of electromagnetism, as it is concerned with the study of electromagnetism, how electrically charged particles interact with each other, and with magnetic fields, and there 4 main types of electromagnetic reactions are:  Magnetic poles are in the form of pairs that attract and repel each other, much the same as electrical charges do.  An electric current through a wire creates a magnetic field whose direction depends on the...

 Amino acids are any group of organic molecules that contain a basic amine group (NH2), a carboxylic acid group (COOH), and an organic group R (or called a side chain) that is unique to each amino acid and is the building block of proteins. The term amino acid is an abbreviation for αamino carboxylic acid. And each molecule contains a central carbon (C) atom, called alpha carbon, so that both groups are bound; The amine and the carboxylate. And the remaining two bonds of the alpha carbon will combine with a hydrogen atom, and the group R will be as follows: Amino acids differ from each other according to the specific chemical group, the R group. Building blocks of proteins Proteins are essential to sustain life on Earth. It produces many of the structural elements in the cell, and helps to connect cells with each other in tissues. Some proteins act as contractile elements, making movement possible. Others are responsible for transporting essential materials from outside the cell to...

  Russian chemist "Dmitry Mendeleev" published his first attempt to group chemical elements and tabulate them according to their atomic weights in the late nineteenth century. There were only 60 known chemical elements in that period, but Mendeleev had noticed the alignment of some elements in a regular order in the form of regular and successive cycles, when he organized the known elements at their time according to their atomic weights. What is the periodic table and why is it important? Today, 150 years later, chemists are already dealing with 118 known chemical elements (after adding four new elements in 2016) and the order of elements that Mendeleev used in his chemical table is still followed, as the modern periodic table begins with the simplest atom: the hydrogen atom, then Then the rest of the elements are lined up according to their atomic numbers (and the atomic number is the number of positive protons in an atom). With few exceptions, the arrangement of the elemen...

 What is chemistry Chemistry is the science that studies matter and its properties, how and why substances combine or separate to form another substance and how it interacts with energy.Many people think that chemists wear a white coat and they test and mix strange liquids in the laboratory, but in fact we are all chemists. Understanding basic chemistry concepts is part Important for nearly every profession. Everything in existence is made up of matter, even our bodies.Chemistry is present in everything we do, like farming, cooking food, cleaning our homes and our bodies, and even launching a space rocket. Chemistry is one of the physical sciences that helps us describe and explain our world.   Departments of Chemistry Chemistry is divided into 5 major departments, each of which has several fields of study. Analytical chemistry: Qualitative and quantitative observation is used to define and quantify the physical and chemical properties of substances. Physical chemistry: This s...

 For the first time, scientists were able to study the mysterious element «einsteinium», one of the strangest elements with large atoms, very sensitive and rare, and difficult to study. One of the titans has given up some of its secrets, as scientists have finally gathered enough einsteinium to learn important details about its chemical composition and its ability to form bonds. During the past seventy years, the study of einsteinium isotopes has been frustratingly difficult, due to the difficulty of their formation, and because the half-life of these isotopes is less than a year, and the study is subject to difficulties despite obtaining some useful results in the beginning. The element is supposed to behave like its less powerful isotopes in the actinide series, but due to its large size, strange relativistic influences make it impossible to predict the way it will interact within certain chemical reactions, this question can usually be solved by experiments.   The U.S. Depa...