Name and function of a common food additive by E-number (E102, E330, E621 and about 90 more); a reference, not a safety rating.

Airport forecast (TAF) summarized: worst flight category in the next 6-24 hours, when it starts, and the periods.

Active US SIGMETs and AIRMETs by hazard: convective, turbulence, icing, volcanic ash, with altitudes and validity.

Latest airport weather by ICAO code, decoded: flight category VFR/MVFR/IFR/LIFR, wind, visibility, ceiling, temperature.

Current weather at up to 10 airports at once: flight category, wind and ceiling for each, worst first.

Slow-motion factor from capture and playback fps, output duration for real seconds, and capture fps needed.

Convert shutter angle to exposure time (and back) at a frame rate, plus the angle that avoids 50 or 60 Hz flicker.

Convert frame counts to SMPTE timecode and back at 23.976 to 60 fps, with 29.97 and 59.94 drop-frame handled correctly.

Add or subtract two SMPTE timecodes at a given frame rate, drop-frame aware, with the result in frames and seconds.

2:3 pulldown cadence: which film frames land in which video fields and frames when 24 fps film is telecined.

Airport weather now and ahead in one call: current flight category, worst forecast category, wind and trend.

Density altitude at an airport from live temperature and pressure: performance penalty for aircraft and drones.

File size from video bitrate and duration (MB, GB, GiB), bits per pixel, or the bitrate that hits a target size.

Live crosswind and headwind components at an airport for a runway heading, including gusts, versus your limit.

Fog and low-visibility risk at an airport from the temperature-dew point spread, wind and visibility.

License of a package version classed as permissive, weak, strong or network copyleft, with commercial-use notes.

Packaged food profile by barcode: name, brand, Nutri-Score, NOVA processing group, nutrition per 100 g and data quality.

Does a package version carry build provenance (SLSA/sigstore attestations)? Signals a verifiable build, not safety.

Dependency weight of a package version: direct and transitive dependency counts and a light/moderate/heavy verdict.

Allergens and traces declared for a barcode, checked against allergens you avoid; never claims a product is safe.