Aerospace, Astronomy, and Earth Science Calculators With Visible Assumptions
This category groups practical calculators for aviation performance, propulsion, aerodynamics, compressible flow, astronomy, cosmology, meteorology, geoscience, solar geometry, and environmental water-quality screening. Each page exposes stable input IDs, visible units, formula metadata, FAQs, and local browser-side execution so humans and AI agents can inspect the calculation instead of guessing from a title.
The black-hole calculators for Hawking radiation and Schwarzschild radius remain canonical under Physics, but they are included here because they are part of the astronomy and cosmology workflow. That avoids duplicate pages while keeping the Aerospace category complete.
Important: These tools are transparent formula aids. They do not replace flight manuals, launch-provider analysis, official weather alerts, environmental regulations, lab QA/QC, field calibration, or qualified engineering and scientific review.