Explore reactions, gases, and states interactively
Explore reactions involving states and gases. Manipulate 3D models for rotational views. Follow step-by-step protocols. Access detailed explanations and insights. Track progress through interactive experiments.
The app displays Chinese and Western star charts, integrating astronomical event information and constellation stories. It offers VR, AR, and manual modes for celestial object identification and includes over 200 bilingual audio recordings.
The app calculates areas of uploaded images by allowing users to set a drawing scale before outlining a shape's perimeter. It supports multiple drawing layers for summing areas and displays results in imperial and metric units.
Simulate arrow flight in real-time 3D. Adjust bow setup including pin sight, arrow velocity, weight, and type. Input target distance, direction, elevation, and wind. Calculate target hit probability and adjust aiming accordingly.
Offers 97 calculators and 28 converters for , civil engineering, and structural engineering. Users can calculate pressure, forces, and absolute pressure. Switch between USCS and SI units.
Convert units across 20+ categories including currency, area, temperature, and mass. Switch between 300+ units. Input values and instantly see converted results. Save frequently used conversions. Share converted values via copy-paste.
The app calculates the distance between lightning and the user's location. It measures the distance in meters and feet based on user input when lightning is seen or thunder is heard.