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Biology
Biology of Viruses (New Coronavirus)
Last Updated on June 20, 2022 by Mostafa In the past few days, there has been a lot of news about the new coronavirus, which appeared in Wuhan, the capital of Hubei Province in China. China announced the first infection with the new coronavirus on the 30th of last December. And then the announcements continued to be about more cases of infection in several countries around the world according to the following map from Sky News: There have been conflicting claims about the causes of this virus, its severity, and how to prevent it. Therefore, in this article, PraxiLabs will provide you with a quick idea about the biology of viruses in general. Then we address the most important reports from health organizations around the world regarding this virus in particular. Viruses: Viruses are microscopic infectious agents that can reproduce by controlling the cells of living organisms. Then they use their components to manufacture more viruses. Thus, they are not considered living organisms since they need a host in order to reproduce and don’t have cells as their size is very small compared to the cells of living organisms. Although they are not classified as living organisms, they also …
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virtual learning articles
Virtual Science Labs from PraxiLabs: The Most Important Achievements of 2019
Last Updated on June 20, 2022 by Mostafa A new year for PraxiLabs has just begun for the leading company in the field of developing virtual science labs in the Middle East and North Africa. This year has been marked by many activities and achievements made by PraxiLabs and various competitions and awards that Praxilabs have won between local and international. PraxiLabs also participated in a range of multiple activities in cooperation with various educational institutions, in addition to making significant improvements to its virtual labs to help users get the maximum benefit from them. The Most Important Prizes that PraxiLabs Won during 2019: 1- First Place in the NextBillion EdTech Prize Competition in Dubai: NextBillion is an open forum for the development through enterprise sector. Based at the William Davidson Institute at the University of Michigan, the site is a community of business leaders, social entrepreneurs, NGO managers, policy makers, academics, and others exploring the connection between development and for-profit business. PraxiLabs has risen to be among ten companies in the field of educational technology from Africa qualified for the Next Billion EdTech award. The final competition was held on the sidelines of the Global Education and Skills …
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virtual learning articles
E-learning and One of Its Applications (Virtual Labs)
Last Updated on July 28, 2022 by Sherouk Badr Shehata Modern teaching methods vary. And one of these methods is the simulation method, which is used by the virtual labs. Also, simulation is one of the most important teaching and training methods that help to reduce costs of the education process. It saves time and efforts as well. And through simulation, students are able to develop many personal skills, which is one of the educational goals. On the other hand, it provides the learner with a lot of knowledge about the requirements of real work environment. Thus it achieves the second educational goal. Dr. Ali Abd Al-Samie defined simulation as “an educational method that the teacher usually uses to bring students to the real world. It is believed that the simulation method suits the fields that do not accept any errors, as happens in some nuclear and military industries as an example.” Educational Systems in Digital Age: That great progress that we are experiencing at the present time in various fields, including the field of e-education, is one of the most important features of the technological revolution that provides information network. This leads to the development of the education …
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virtual learning articles
Introduction to Thermodynamics
Last Updated on June 20, 2022 by Mostafa Heat is a form of energy that can be transformed from one form to another, or transferred between objects. For example, in electric motors, the turbine transforms heat into mechanical energy to power the motor, then mechanical energy is transformed into electrical energy by the engine to illuminate light bulbs. To study the relation between heat and other forms of energy, physicists established thermodynamics to understand how thermal energy is diverted into and from other forms of energy. and how these transformations affect matter. Thermal energy is defined as the energy possessed by a substance or system as a result of its temperature, It expresses the energy of moving or shaky particles. Thermodynamics can thus be defined as a branch of physics that organizes the relation between heat and various forms of energy and describes the transformations that occur in thermal energy from one state to another state of energy and how this transformation affects matter. History of Thermodynamics: The Caloric theory was proposed by chemist Antoine Lavoisier in 1783 and supported by Sadi Carnot in 1824, scientists adhered to this theory in their research during the late 18th and early …
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virtual learning articles
Artificial Intelligence: Its Concept, History, and Most Important Application in Education
Last Updated on June 20, 2022 by Mostafa “Machines that can talk and think,” this is how science fiction movies present the idea of artificial intelligence (AI). Now we can see artificial intelligence invading various aspects of life. It is the first concern of all companies in various industries, where the most important advantage of artificial intelligence for entrepreneurs is to reduce relying on human potential. Thus, they are able to save time and effort by developing machines capable of operating automatically without human intervention, where saving effort and time in the business world leads to saving money, the primary goal of every entrepreneur. The emergence of artificial intelligence as a term began by philosophers of science in 1956. And many believe that philosophy played a key role in the development and growth of artificial intelligence technology. According to David Deutsch, a physicist at Oxford, philosophy still holds the key to achieving general artificial intelligence (AGI), which is the level of machine intelligence that is comparable to that of the human brain, despite the fact that “there is no brain on earth yet, close to Find out what our brains do to achieve any of their functions.” The uses …
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virtual learning articles
Can You Store Your Data in DNA
Last Updated on June 20, 2022 by Mostafa The recording of data in all aspects of life is one of the most important elements of the present technological progress we are witnessing. Data storage allows the recording of all types of updates: scientific, social, historical, artistic, etc., which helps researchers and thinkers to continue the development and construction, and allows the transfer of these developments from one person to another, giving the opportunity for different minds to leave their mark to develop various aspects of life. Data is defined as an unrelated series of facts, which can be obtained by observation or by research and recording. Data recording is also known as the process of storing or recording information. This recording can be done using any form of energy, such as sound oscillations in phonograph sound recording, or electromagnetic energy to modify a magnetic strip or optical disc. We have witnessed a great development in the methods of data recording, from the use of rock sculpture to the use of handwriting on paper, then the invention of printing and use for writing, then the emergence of computers, and thus the emergence of hard disks, optical discs, etc. The latest …
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Physics
What is the World Map of Nuclear Power?
Last Updated on June 20, 2022 by Mostafa According to a study published by ExxonMobil in 2018, the middle class whose numbers continue to grow turbulently in the world will be in urgent need of more energy that can be relied on, which can be available at cheap prices. With increasing calls for environmental protection and a call for reduction in carbon dioxide emissions generated from traditional sources of energy such as fossil fuels, the world faces a problem of maintaining a balance between protecting the environment and increasing reliance on more adequate energy that requires huge investments and advanced technologies. In this article we will talk about one of the sources of renewable energy, which is nuclear energy, its importance, how to generate it, and the countries that own it. Energy provides prosperity in society and helps economic growth; therefore, people become richer, and the expansion of prosperity leads to the growth of commercial transport. As wealth increases, the number of people who need to travel will increase, meaning more fuel is needed. Nuclear power is a solution to this dilemma. Nuclear power generation will reduce dependence on energy from oil and natural gas. Low dependence on fossil …
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virtual learning articles
Currents War and Its History
Last Updated on June 20, 2022 by Mostafa In this article, we discuss the story of the famous conflict in the scientific community, known as the Currents War. The two heroes of this story are Nikola Tesla and Thomas Edison. But let us first understand what electricity is and what the concept, types, and importance of electrical currents which have led to such a conflict are? Electricity is a form of energy, which is necessary for many different uses in our life. Lighting was one of the earliest uses of electricity in the history, when Thomas Edison invented the light bulb in the 19th century, and was the best alternative to the use of flame for lighting, reducing the risk of fire in homes and factories. And then people began to use it in heating; subsequently, the electric power market started to prosperity with the emergence of inventions that are essentially based on that form of energy. This prosperity continues to this day. At present, the use of electric power varies in an enormous way. It is found in our homes and in all different sectors of work. It is the safest way to operate different factories, not to …
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virtual learning articles
The Famous Types of Subatomic Particles
Last Updated on December 12, 2022 by Nourhan Essam The world is still full of mysteries that we have not yet discovered, and scientists are still trying to understand the nature of this wondrous universe around us. From the structure of the atoms to the details of the supergalactic coordinate systems, our human mind is still incapable of understanding many of these secrets. In this article, we shed light on the enchanting aspect of our universe. It is an invisible world, yet we can observe its effect in everything around us in our daily life as it is the basic structure of the universe (types of subatomic particles). It is the world of subatomic particles. We will sail together in this article to explore this world and some of its secrets: what are the types of subatomic particles and how can we study them and study their properties? What Are the Particles? Before we get to know subatomic particles, let’s first get to know the particles in chemistry and physics. In the physical sciences, a particle is a small localized object to which can be ascribed several physical or chemical properties, such as volume, density, or mass. The term particle always refers to objects of small sizes, and the most …
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Physics
5 Most Important Physics Equations in History
Last Updated on May 14, 2023 by Sara Assem Physics is the science of nature It is a science that aims to understand how the universe works around us, starting from the atoms to the giant galaxies. It is concerned with studying basic concepts such as energy, force, speed, time, and mass of materials and movement. Through physics equations, scientists try to understand natural phenomena and explain how the universe works. In this article we will address the most important physics equations that have a great impact in the history of humanity as a whole and are considered the best physics equations. Physics is one of the oldest sciences in history, beginning in the Middle Ages and classified as a modern science in the 17th century. Physics has a distinct place in human thought as it also had an influence on some other scientific and non-scientific fields such as philosophy, mathematics, and biology. Today, physicists are divided into two complementary disciplines: theoretical physics and experimental physics. Theoretical physics deals with the development of theories based on mathematical models, while experimental physicists test these theories and develop different applications for these theories. What are physics equations ? Before …
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