氣體定律

Interactive ideal gas law simulator with real-time particle animation, lock P/V/T controls, dynamic charts (P-V, P-T, V-T), and visual demonstrations of thermodynamic processes.

Explore an adult male reference body in 3D. Reveal 14 anatomical systems, search thousands of named structures, isolate organs, and pull 2,209 modeled pieces apart to see how the body is organized.

Explore the head and neck in 3D: 643 source meshes across 14 layers, 47 facial and masticatory muscles, and 77 drawn nerves, vessels and glands the source scan omits. Open any tooth onto its own pulp canal, and follow the seven stages of tooth development.

免費的光合作用互動模擬實驗。在線動手探索光合作用——適合全班演示，也適合學生自主練習。

免費的物質的狀態互動模擬實驗。在線動手探索物質的狀態——適合全班演示，也適合學生自主練習。