With travel warnings and revoked visas, the two superpowers locked in a bruising trade war may make students and tourists their bargaining chips. By Vivian Wang Reporting from Beijing China has ...

Pasijah, a 55-year-old housewife in Indonesia's Central Java province, wakes up every morning to the sound of the sea. If that sounds idyllic, it is anything but. Climate and human rights ...

This article was originally published with the title “ The Aerodynamics of Boomerangs ” in Scientific American Magazine Vol. 219 No. 5 (November 1968), p. 124 doi:10.1038 ...

This extension marks a subsequent continuation of the initial Delhi EV Policy, which was inaugurated in August 2020 with the primary objective of mitigating vehicular emissions and achieving a 25% ...

Mar. 25, 2025 — This a robot can walk, without electronics, and only with the addition of a cartridge of compressed gas, right off the 3D-printer. It can also be printed in one go, from one ...

Pressure. Manometer, Fluid classification, Reynolds number. Fluid flow. Continuity of flow. Euler’s equation and Bernoulli’s equation. Pipe flow. Energy changes in a fluid system. Momentum equation.