Tahoe Experiments

These are the experiments that will be done during the Lake Tahoe trip.

Curving Water
- Globe prediction:
  - Bottom up obstruction increasing with distance
  - http://walter.bislins.ch/bloge/index.asp?page=Advanced+Earth+Curvature+Calculator
  - Dock to dock:
    - 19.55 miles
    - 10 foot observer
    - 10 foot target
    - k=+0.333: 98 feet hidden
    - k=+0.500: 66 feet hidden
    - k=+0.960: 0 feet hidden
  - Flat prediction:
    - No bottom up obstruction at all
Polaris Elevation
- Globe prediction
  - Latitude +- Polaris distance from Celestial pole
  - Carson City, NV Latitude: 39.17°N
- Flat prediction
  - Using my previously measured flat earth elevation of Polaris of 5000km by measuring the elevation of Polaris to be 45° at 45°N latitude, which is 5000km from the geographic North Pole. Creating a 45-45-90 triangle so the elevation of Polaris over flat earth is the same as the distance to the North Geographic pole: 5000km.
  - Carson CIty is 39°N latitude, 5666.61km from the north pole.
  - Triangle: 5000km-90°-5666.61km
  - Predicted elevation of Polaris: 41.4°
Celestial Navigation
- Using Theodolite App on iPhone
Longitude Length
- Globe prediction method
  - d = r cos(latitude)
  - d is arc distance
  - r is radius of the globe
- Flat prediction method
  - d = L * pi/180
  - L = distance from north pole = degrees latitude from north pole * 60NM (or 111.12km)
Gravity Variation
- At Flat Earth Pizza in Carson CIty, NV
- Latitude 39.17°
- Elevation 1416m
- Globe Prediction:
  - Based on distance from the center of the earth and centrifugal acceleration
  - Weight 500.28g
- Flat Prediction:
  - Based on flat and stationary it should not vary at all at different locations
  - Weight 500.00g
Magnetic Field Strength
- At beach near dock
- 38.94° N, 120.04° W
- Globe prediction:
  - 48,551.0 nT
  - Screenshot below
- Flat prediction:
  - They have no clue
Magnetic Inclination
- At beach near dock
- 38.94° N, 120.04° W
- Globe prediction:
  - 62.5° inclination: North down
  - Screenshot below
- Flat prediction:
  - They have no clue
Dip of the Horizon
- Globe prediction:
  - based on the elevation
  - 33,000 feet – No refraction: 3.2°, refraction: 2.9°
  - 35,000 feet – No refraction: 3.3°, refraction: 3.0°
  - 37,000 feet – No refraction: 3.4°, refraction: 3.1°
  - 40,000 feet – No refraction: 3.5°, refraction: 3.2°
- Flat Prediction:
  - See table here: https://mctoon.net/tfe-experiments/
Sunrise/sunset time/angle
- Jan 11, 39.17°N, 119.75°W
- Globe prediction:
  - https://drajmarsh.bitbucket.io/earthsun.html
  - Sunrise:
  - 7:18am
  - 117.87° heading
  - South East
  - Solar noon:
    - 12:07pm
    - 180° Heading
    - Due South
  - Sunset:
    - 4:56pm
    - -117.85° = 242.15° heading
    - South West
- Flat prediction:
  - Sun will never be below the horizon
  - At 7:18am predict sun will be North East
  - At local noon, that have no idea of the time, but it will be due south
  - At 4:56pm predict sun will be North West

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