Abstract: Freehand sketching is an efficient way for conceptual design stage, and on-line sketching recognition is a precondition for human-computer interface. This paper brings usual polyline into ...

November 10, 2025 • After 41 days of a government shutdown, the U.S. Senate has passed a set of bills to reopen the government. Its fate in the House is uncertain. November 10, 2025 • President Trump ...

Closed Borders is a Civic. It prevents new players from joining your Civilization, but costs a 25% drain to Gold. It becomes available with the discovery of the Masonry technology. Previous ...

Space Flight is a Technology. You must unlock the Electronics, Nuclear Power, and Advanced Flight technologies before you can research Space Flight. Space Flight unlocks the Apollo Program Wonder.

Fusion blankets are key reactor components that provide heat extraction for power generation, tritium breeding for fuel recycling, and radiation shielding. Liquid metal concepts, such as lead-lithium ...