The server migration has been completed.
Hello, this is JavaLab. We have completed the migration of the JavaLab server to AWS. We sincerely thank all the teachers who trusted us and patiently waited during the migration.
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Density Tower 2 (Comparison of densities of various liquids, plastic, iron, and gold)
Density Tower A density tower is made by stacking several liquids in one container according to differences in density (mass per unit volume). Liquids with higher density sink to the bottom, while liquids with lower density … more
Direction of earth’s gravity
Scientific definitions of ‘up’ and ‘down’ We live on the surface of the Earth and are always under the influence of its gravity. When we let go of an object, it falls “down,” and when we … more
QR Scanner
QR Scanner You can easily scan a QR code even if your camera does not have a scanning function. Click on the scan result in the center of the screen to go directly to the URL.
What is Javalab?
Free interactive science simulation(Virtual lab) written by JavaScript Simulates various natural phenomena Includes about Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… No need to plugin add-ons Available on mobile devices and tablets also Free of charge … more