Access alloy and temper data for over 200 combinations. View mechanical and physical properties in US Customary and SI Metric units. Check chemical composition limits and typical applications.
Look up English and Chinese words with detailed definitions and similar terms. Access professional dictionaries in computer, mechanical, engineering, civil engineering, and chemical fields. Select words for further lookup.
Study with intelligent mode that tracks progress, highlights struggling areas, and prioritizes key questions. Review detailed statistics, access full question banks, and focus on unmastered topics for effective learning.
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
Provides access to educational resources and parenting guides. Offers interactive learning activities for children. Includes expert advice on child development. Enables parents to track child progress and set learning goals.
Visualize reactions in 3D with quantum simulations
View 3D models of chemical reactions based on quantum-mechanical simulations. Rotate, zoom, and dissect molecular structures. Annotate diagrams and save notes for later review. Share visualizations with classmates or instructors.
The app provides access to a database of safety data sheets. Users can search and view an unlimited number of SDSs and add frequently referenced sheets to a personal binder.
The app allows users to explore virtual chemistry with nearly 300 reactions. Users can discover element properties through alternate Periodic Table views and view images and videos of created molecules.
The app offers adaptive English tests and AI-driven lessons to adjust learning based on user strengths. It provides systematic daily updates to improve listening, reading, and speaking abilities with abundant learning materials.