Explore detailed historical profiles of 200+ Egyptian and their pharaohs. Search by name or dynasty. Browse chronological entries with dates and key events. View images and artifacts related to each queen's reign.
Explore the through a self-guided driving . View historical sites and memorials. Learn about General Grant’s campaign, Confederate resistance, and the Siege of . Listen to narratives about key battles and their impact.
Solve puzzles by designing complex machines to complete tasks. Use tools like levers, pulleys, and dominoes. Create custom solutions with a variety of objects. Track progress and replay completed challenges. Share inventions with others.
Calculate lengths, angles, and area of shapes. Select a shape from a list. Enter values in boxes linked to orange points. Adjust point positions using the NEXT button or tapping points. Retrieve calculated measurements based on input.
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.
Access and search the full text of the Indian of (CPC), 1908. Navigate through parts, sections, orders, and appendices. Search for specific content. Display current path and allow scrolling via volume keys.