Globe Earth and beyond, a searchable Database of Links to Resources that "prove" the Earth is a Globe.

The design and physics of airplanes is such that they hold a certain trimmed altitude and speed, following the curvature of the earth automatically, even without any intervention of the pilot or autopilot system. **Pilots don't have to drop the nose to correct for curvature.** The interactive physics simulation of an airplane on this page shows how this works. The physics model and the corresponding behavior of the airplane are explained. The Source code and the equations are described in detail.

Wednesday, July 7, 2021 - 23:52 | Author: wabis | Topics: Knowlegde, Interactive, Physics, Simulation, FlatEarth

Some Flat-Earther found on a webcam image from Antarctica a star constellation that resembler the Big Dipper.

Since the Big Dipper cannot be seen on Earth from Antarctica, these flat-earthers believe they have found evidence of their flat-earth model. Here I show that the constellation they found is not the Big Dipper, but part of the constellation Sagittarius.

Mr Sensible conducted a high altitude ballon experiment that contained 3 cameras, a pressure and a temperature sensor and a GPS device. The goal was to record pressure, temperature and altitude, as well as to show the curvature of the earth to an altitude up to 39,000 m. The altitude was almost reached.

Video: MAGE II - What shape is the Earth?; M.A.G.E. - Mission Above Globe Earth - The final results!

On this page I compare the curvature of the horizon with the predicted curvature of my Curvature App. The curvature shown in the video linked above matches exactly with the prediction of the Curvature App, which is based on a globe with radius 6371 km. This means, the observed curvature of the horizon is caused by the spherical shape of the earth.

Sunday, November 1, 2020 - 23:00 | Author: wabis | Topics: Science, Experiment, Physics, Balloon, Analysis

When using distorting lenses like GoPro fisheye lenses, the curvature of the horizon is not shown correctly, except if the horizon line passes through the center of the image. The App on this page lets you investigate how different shapes are distorted by different lens distortions depending on their position in the frame.

Thursday, October 22, 2020 - 00:18 | Author: wabis | Topics: Knowlegde, Simulation, Interactive, Geometry

Using angle measurements to visible geostationary satellites like the Himawari 8 from two different locations we can calculate the position, altitude and distance of the satellite for the Globe and Flat Earth model. I provide a calculator to make the calculations for both models and show the results in an interactive animation. All math is explained in detail. The results show that the Flat Earth model is wrong.

Sunday, September 13, 2020 - 07:53 | Author: wabis | Topics: Knowlegde, Space, Geometry, Calculator, Interactive, Animation

I show with an interactive model how the Coriolis Effect emerges in the rotating reference frame of the earth. I show how airplanes take the Coriolis Effect into account and how they manage to keep up with different tangential speeds at different latitudes. I provide all equations and calculators to calculate the corrections airplanes have to apply. I show that the Coriolis Effect is small enough so it can be ignored in flight planning.

Measuring the shape of the earth using a theodolite without assuming a globe is not trivial, because atmospheric refraction introduces measurement errors which change the appearance of the earth. I describe a method of how the shape of the earth can be determined taking refraction into account.

Wednesday, February 12, 2020 - 03:19 | Author: wabis | Topics: FlatEarth, Mathematics, Science, Calculator

The presented Calculator can be used to calculate distances to objects from Parallax measurements. It also can be used for triangle calculations where we only know the baseline, an opposite angle and the point where the height meets the baseline. Also provided is the derivation of the used equations.

This page provides a Numerical calculation of the gravitational acceleration and gravitational potential field around and inside a cylinder with homogeneous density. It shows that the gravitational field has no center of gravity like a sphere, but in the limit of big distances it can be treated as a point mass or sphere with the same mass.

Friday, November 22, 2019 - 20:14 | Author: wabis | Topics: Physics, Mathematics, Interactive, Simulation

The **Rainy Lake Experiment** was designed to show, how we can figure out the shape of the earth, Flat or a Globe, by observing and measuring a clever arrangement of targets over a distance of 10 km, taking terrestrial refraction into account and using modern equipment. The experiment is an advanced version of the Bedford Level experiment executed in 1838. The Experiment leads to the conclusion that the earth must be a Globe with a radius of 6371 km.

Rainy Lake Experiment Animation**walter.bislins.ch/RainyLakeAnimation**

Link to here:**walter.bislins.ch/RainyLake**

Short Version of the Report

In a Nutshell, e.g. for Presentations

With the help of a simulation, I show, up to what altitudes the earth appears flat, although it actually has a spherical shape. Using some animations, you can learn how to recognize the curvature of the earth, or in what circumstances it appears flat. The simulation can also simulate refraction. I prove by means of photos, how the simulation depicts reality, by superimposing the simulation results onto photos.

- Curvature App stand-alone
- Link to here:
**walter.bislins.ch/Curve**

- German Version
- Causeway Demo:
**walter.bislins.ch/Causeway**

Monday, January 7, 2019 - 22:57 | Author: wabis | Topics: FlatEarth, Calculator, Animation, Knowlegde

This page shows scenes computed with a Globe Model and a Flat-Earth Model of the Earth and compares them with corresponding Real Images of the same scene and experiments to show, which Model-Predictions match Reality.

The interactive Refraction Simulator on this page renders scenes as seen on atmospheric conditions you can provide. It is an accurate simulation of Atmospheric Refraction for both Globe Earth and Flat Earth. The simulation predicts what we can expect to observe in reality.

Link to here: **walter.bislins.ch/RefractionSim**

Could a infinitely large Flat Earth with a certain thickness *b* and density *ρ* produce a gravitational acceleration according to Newtons law of gravitation of *g* = 9.806 m/s^{2} that has no center of gravity, but is the same magnitude everywhere?

This App shows how a circle given by its center in latitude *φ* and longitude *λ* and its radius *s* along the surface of the globe earth looks like, if its curve is projected from the globe to the flat earth. I show the formulas used, derived by myself, and the source code of the working App.

Friday, October 19, 2018 - 01:51 | Author: wabis | Topics: FlatEarth, Mathematics, Geometry, Interactive

Proving we live on a Globe using only paper, scissors and glue to build an Equinox Sundial. I show in an interactive animation how such a Sundial works everywhere on the Globe and give you the blueprints to build your own Equinox Sundial. Thanks to Wolfie6020 who made a video introducing this page.

In the coordinate system of the sun, the moon tracks a weird path, sometimes speeding up, sometimes slowing down. At the nearer side to the sun the moon gets attracted more by the sun than at the further side. The sun is much bigger than the earth and its attracting force is bigger than that of the earth. So why is it that the moon does not left earth's orbit and crash into the sun? I give the detailed explanation in this article, which includes an interactive simulation.

Link to here: **walter.bislins.ch/Helio**

Wednesday, September 5, 2018 - 01:30 | Author: wabis | Topics: Simulation, Interactive, Space, Physics

This calculator can be used to compute the effective gravitational acceleration, the pure gravitational acceleration and the centrifugal acceleration for any point on the Reference Ellipsoid of the earth for both surface and at altitude according to the model WGS84.

Saturday, September 1, 2018 - 20:45 | Author: wabis | Topics: Calculator, Knowlegde, Mathematics, Physics

Use this calculator to calculate and visualize what we can see of a target of a certain size and distance from any observer altitude, taking refraction into account. You can compare the results between flat earth and globe earth. Many more values are calculated and you can customize and store the settings.

Link to here: **walter.bislins.ch/CurveCalc**

Friday, August 31, 2018 - 17:54 | Author: wabis | Topics: FlatEarth, Calculator, Knowlegde, Geometry

The Cavendish experiment can be used to show that mass attracts mass according to Newton's law of universal gravitation. Creating such an experiment is very challenging because the gravitational forces involved are tiny, about in the nano Newton range. This simulation can be used to plan an experiment and to verify whether the outcome is likely the result of gravity or other influences. The math involved is explained and the source code of the simulation is available.

Special Relativity was originally based on two postulates: the Principle of Relativity and the constancy of the speed of light. In this article I explain an attempt to drop the light postulate from Special Relativity. I show that the speed of light is a general speed limit. The value for this speed limit is a consequence of how we define length and time units.

This App is my Contribution to the Search and Rescue Contest of Wolfie6020. The App computes a Search Pattern from given Locations of an Airport Base and a Most Probable Position (MPP) of a search target, given some Airplane and Mission Parameters.

**Note: This App may not be used for real Search and Rescue Operations. It is for demonstration purposes only!**

There is a famous formula that Flat Earthers frequently use to calculate the curvature of the Globe Earth. This formula is an approximation. It is commonly under- or overestinated how accurate this approximation is. Here I give the accuracy of the approximation and derive the exact formulas and the approximation 8" per miles squared and compare the results in a Calculator Form.

Monday, April 16, 2018 - 17:52 | Author: wabis | Topics: FlatEarth, Calculator, Mathematics, Geometry

Here is an interactive Flat Earth Model that can explain Sunrise, Sunset, Moonrise, Moonset, Moon Phases, Moon's apparent rotation, Sun's position on Equinox, Seasons, some aspects of Solar and Lunar Eclipses, Star trails, 24 hours Day/Night at the Northpole and Antarctica, Celestial Poles, why people south of the equator can see the same Stars rotate clockwise around a singe celestial pole at the same time at different continents. But many aspects of reality are not solvable by this Model.

The flat earth dome model had to be derived entirely from the heliocentric model which results are then simply projected onto the flat earth and the dome. To connect the flat earth projections with the dome projections, light must bend in a physically impossible way.

Link to here: **walter.bislins.ch/FED**

To comprehend how curvature on a globe is expected to look like, we have to comprehend how perspective distortions look on a Globe. In this article you can play with an App showing a grid of a Globe Model to see how it is distorted by perspective especially when viewing from low altitudes.

Saturday, December 30, 2017 - 20:47 | Author: wabis | Topics: FlatEarth, Knowlegde, Geometry, Interactive

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