Identify rocks, minerals, and crystals by uploading photos. Learn details about each specimen including type, properties, and uses. Access a database of geological information and compare characteristics for accurate identification.
Provides tools for and electronics calculations. Users can compute resistance, voltage, current, and power. Includes resistor color code conversion and voltage drop calculations aligned with NEC/IEEE standards. Supports USCS and SI units.
Watch knitting videos offline with 170+ instructional clips organized into 15 categories. Search for specific techniques. Learn stitches, cable crossings, and decreases with step-by-step guidance.
Access cancer staging guidelines, contouring atlases, and DVH normal tissue constraints. Use clinical calculators like GBM RPA. Look up commonly prescribed medications and oncology ICD9 codes. Share feedback for community improvements.
Identify coins by scanning or uploading images. Receive details on country, year, metal, grade, and historical context. Estimate value instantly. Access educational content about history and collecting.
Study for the CDL endorsement with 110+ multiple-choice questions covering essential topics. Simulate real tests with randomized questions. Track progress and review detailed explanations for each answer.
Identify rocks, minerals, crystals, gemstones, and fossils by snapping photos. View detailed information on composition, formation, and cultural significance. Access educational content about geological properties and historical context.
Calculate geometric properties for 26 shapes, planes, and solids. Input dimensions to find area, perimeter, volume, and surface area. Access formulas for triangles, polygons, circles, and 3D solids.
Identify rocks, crystals, and minerals by uploading images or taking photos. View detailed information about each specimen including composition, formation, and properties. Save and organize identified samples in a personal collection.
View ultrasound images and anatomical descriptions for nerve blocks. Learn positioning techniques and watch block placement videos. Calculate local anesthetic doses with the included drug calculator.
Prepare for the PMP® with 35 tasks aligned to the January 2021 Examination Content Outline. Review 12 principles from PMBOK® Guide 7th Edition. Study 8 domains including their models, methods, and artifacts.
Access detailed element information including symbol, name, atomic number, and mass. Search by classification, phase, or other properties. View electronegativity, atomic radius, and electron configuration.