[Notice] 3D screen does not appear on some iPhones
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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Science simulation
About JavaLab
Javalab JavaLab is free interactive science simulation website for school. Simulates various natural phenomena Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… Based on HTML5 Available on mobile devices and tablets also No…
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Oersted’s Experiment
The phenomenon of magnetic fields around the current was discovered by the Danish physicist Oersted. Oersted showed students that as the current flows, the wires become hot. Then he was surprised to…
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Inertia Force of Elevator
▲ ■ ▼ How do you feel at each of the following moments? And why? When you start to climb the elevator When climbing at a constant speed in an elevator When…
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Radio Wave Communication
The basic structure of the antenna is derived from the capacitor. Basically, an antenna is a device for sending and receiving electromagnetic waves. A typical dipole antenna has a wire shape with…
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Dipole Antenna
The basic structure of the antenna is derived from the capacitor. Basically, an antenna is a device for sending and receiving electromagnetic waves. A typical dipole antenna has a wire shape with…
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Direct Current(DC) and Alternating Current(AC)
Direct current, DC Direct current (DC) flows only in one direction of the conductor. In the DC circuit, the terminals of the battery always maintain a constant polarity. The electrons inside the…
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Electric Current
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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Sound pitch and volume
This simulation works on Edge, FireFox, Chrome, Safari, and Opera. It does not work on Internet Explorer, Opera Mini. The pitch of the sound is related to the frequency. The pitch of…
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Standing Waves on a String
This simulation works on Edge, FireFox, Chrome, Safari, and Opera. It does not work on Internet Explorer, Opera Mini. Standing wave occurs when incoming and reflected waves interfere with each other. It…
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