Calculators and Units Converters
A variety of calculators collected on one place.
Advanced Earth Curvature Calculator
Calculation and visualisation of earth curvature related properties like hidden parts for globe and flat earth.
Simulation of Atmospheric Refraction
The interactive Refraction Simulator on this page renders scenes as seen on atmospheric conditions you can provide.
IGS Network / UNAVCO Reference Stations / NGS Continously Operating Reference Stations (CORS)
Some Data Files with GNSS Reference Stations to display and investigate with the Display Geo Data App.
Rainy Lake Experiment: WGS84 Calculator
WGS84 based transformations of vectors between ECEF cartesian and geodetic coordinates (lat,long,height).
For calculations in the WGS84 ellipsoid model of the earth
Earth Gravity Calculator
Calculates the effective gravitational acceleration, the pure gravitational acceleration and the centrifugal acceleration for any point on the Reference Ellipsoid or above.
Creating Flight Plans for Flat Earth
This App lets you create a Flight Plan based on the Flat Earth Model and view the calculated track on flat earth and globe.
Distances on Globe and Flat Earth
Calculate the shortest distance between two points for globe and flat earth.
Centrifugal and Gravitational Acceleration in an Aircraft
Calculation of the Eötvös effect on a weight in a aircraft, taking speed, direction, latitude and altitude into account.
Communication Path Calculator (RF Link Budget)
This calculator determines the amount of transmitted power received and delivered to the input of a radio receiver in a RF communication link that has signal dissipation losses in the transmitter and receiver hardware as well as signal attenuation as the RF signal energy travels and disperses along its propagation path. The transmitted power received together with the receiver sensitivity determines if the communication link is successful or fails. Author George Hnatiuk.
Eight Inches per Miles squared Formula Derivation
Calculating the accuracy of the approximation 8" per miles squared equation. Derivation of the exact and approx. equation.
Rainy Lake Experiment: Equations
Derivation of curvature drop, horizon distance, refraction angle and lift.
Deriving Equations for Atmospheric Refraction
Derivation of equations for terrestrial atmospheric refraction from basic physical laws.
WGS84 Coordinate System
Equations to transform vectors between ECEF cartesian and geodetic coordinates.
Globe Arc Projection to Flat Earth
Equations and Script to project a circle on a globe to the flat earth
Gravity on an infinite Flat Earth Plane
Derivation of equations to calculate gravity for an infinite plane
Equations for pressure, density and temperature for the International Standard Atmosphere
Strong Refraction Simulation and Reality for 2 Oil Platforms
I managed to reproduce a rare refraction situation that gave raise to discussions for flat earthers.
Sunset Simulation vs. Reality
This sunset illustrates the fact, that refraction can bend light from behind the horizon towards the observer, so it appears above the horizon.
Curved Horizon from 46,000 ft through a HUD, CurvApp overlay
The horizon drop and the curvature of the horizon match exactly the prediction of the Curvature App
Horizon and Refraction explained
Visialisation of apparent horizon at different looming confitions
Flat Earthers Perspective (Flerspective)
Demonstration of how Flat Earthers Perspective would look like
Patents for Erection Mechanisms of Attitude Indicators (AI)
Collection of patents of erection mechanisms for mechanical attitude indicators.