👉 The GPS fluid, also known as the gyroscopic fluid or oil, is a critical component in the functioning of Global Positioning System (GPS) satellites. This viscous liquid, typically a mixture of alcohol and mineral oil, is contained within the satellite's reaction wheel assembly. Its primary role is to provide angular momentum, which is essential for maintaining the satellites' orientation in space. By spinning, the fluid's inertia resists changes in orientation, allowing precise control over the satellite's attitude (direction). This stability is crucial for accurate signal transmission and reception, enabling GPS to provide reliable positioning data. Without the GPS fluid, the satellites would lose their orientation, leading to significant inaccuracies in location determination.
