Provides tools for calculating area, moment of inertia, distance from axis, radius of gyration, and section modulus for rectangular and square beams. Supports metric and imperial units.
Create a safe YouTube environment for families by approving channels. Set up a curated space with no Shorts, comments, or external links. Manage access from a dashboard, approve requests quickly, and let children explore content without distractions.
Access AV calculators, tools, and industry resources. Subscribe to podcasts and stay updated with news and event listings. Use the AR Videowall Tool to visualize display layouts in real environments.
Calculate standard deviation, probable error, and error of the mean for surveying and civil measurements. Switch between imperial and metric units. Perform calculations for series of observations and single or combined accidental errors.
University of California, Berkeley's Lawrence Hall of Science
Explore STEM activities and experiments
Explore science, math, engineering, and technology activities for all ages. Search by topic, cost, or age. Access over 3,500 free experiments, games, and lessons. Filter by keywords or specific subjects.
Explore trends, discover insights, engage with global
Learn about key trends shaping urban development and global challenges. Explore topics like climate , urbanization, energy, and water management. Access interactive tools to analyze system interactions and anticipate future developments.