Javalab Free interactive science simulation website for school. Simulates various natural phenomena Includes Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… Based on HTML5 Available on mobile devices and tablets also No more…
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Currently, a problem has been reported that does not show a 3D screen using webGL technologies of some iPhones. Devices in issue are iPhone 8+ and iPhone X on iOS 12.0.1 or…
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Why is the submerged volume important to understand buoyancy? It is so famous that the 3rd century Greek philosopher Archimedes shouted “Eureka!” and ran out of the bathhouse in naked. （What did…
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Formation and energy of the ionic bonds Metal atoms have strong properties to lose electrons and become cations. On the contrary, non-metallic atoms have strong properties to obtain electrons and become anions.…
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Ammeter The strength of the current in the electrical circuit is measured using an ammeter. There is a rotor with a coil wound inside the ammeter. When the current flows through the…
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Electric voltage(Regions of positive or negative charge, such as those at the terminals of a battery) force electrons through a conductor. Electrons that have negative charge can be moved around a circuit.…
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Discovery of nuclear At the beginning of the 20th century there was little known about the structure of atoms except that they contained electrons. At that time, the atom was known as…
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Heat and molecular motion Every object is made up of atoms or molecules that are small particles that can not be seen by the eye. These particles are constantly move or oscillate…
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Respiratory organ To maintain life, we absorb oxygen from the air. And we export carbon dioxide from the body. Human respiratory organs include nose, organs, bronchi, lungs. Each bronchus in the lung…
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Pascal’s Principle The Pascal’s principle is as follows. “Suppose a closed tube filled with uncompressed fluid. Then, the pressure of this tube’s inside is the same everywhere.” For example, If you press…
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Potentiometer The potentiometer is an electronic component that allows you to adjust the resistance value freely. The potentiometer is used to adjust the volume of sound in audio equipment and so on.…
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