Horizon Dip Measurements: Difference between revisions
No edit summary |
No edit summary |
||
| (6 intermediate revisions by one other user not shown) | |||
| Line 30: | Line 30: | ||
|image=File:Theodolite-app-flatslugbrains-.jpg | |image=File:Theodolite-app-flatslugbrains-.jpg | ||
|Source/Credit= Globular EPIC Bikini @FlatSlugbrains on Twitter | |Source/Credit= Globular EPIC Bikini @FlatSlugbrains on Twitter | ||
|altitude=11074 | |altitude=11074 m | ||
|dip=3.3° | |dip=3.3° | ||
|device=Theodolite | |||
}} | |||
{{Dip | |||
|image=File:Tyler.jpg | |||
|Source/Credit= @Tylerthepilot_ on Twitter | |||
|altitude=35820 m | |||
|dip=4.8° | |||
|device=Theodolite | |device=Theodolite | ||
}} | }} | ||
| Line 39: | Line 47: | ||
|Source/Credit=McToon | |Source/Credit=McToon | ||
|altitude=35091 ft | |altitude=35091 ft | ||
|dip= | |dip=~4° | ||
|device=Theodolite | |||
}} | |||
{{Dip | |||
|image=File:Theodolite-app-dwolfman54-.webp | |||
|Source/Credit=@dwolfman54 on Twitter | |||
|altitude=33709 ft | |||
|dip=>2° | |||
|device=Theodolite | |||
}} | |||
{{Dip | |||
|image=File:Theodolite-app-bk.webp | |||
|Source/Credit=BK, flight from Newcastle to Brisbane, in Australia: | |||
|altitude=36706 ft | |||
|dip=~2° | |||
|device=Theodolite | |device=Theodolite | ||
}} | |||
{{Dip | |||
|image=File:Screenshot 2024-12-16 at 10.35.21 PM.png | |||
|Source/Credit=Wolfie6020 | |||
|altitude=46000 ft | |||
|dip= | |||
|device=cockpit display | |||
}} | }} | ||
| Line 46: | Line 78: | ||
[[Category:Science data]] | [[Category:Science data]] | ||
[[Category:Science]] | |||
Latest revision as of 03:32, 8 June 2026
The horizon dip measurement is the angle between the horizontal (the line perpendicular to the vertical at a specific point) and the apparent horizon.
On a globe, we would expect this angle to increase with increasing altitude, because the horizon would drop away with the curve.
On a flat earth, we would expect the horizon to always "rise to eye level".
This page is a gallery of photos showing the measured dip of the horizon from horizontal.
Instructions
If you want to submit your own image, email dip@mctoon.net Please include the following details with your submission:
1. A clearly visible horizon (ideally, no clouds at, or near the horizon)
2. An instrumented graphic overlay showing true horizontal
3. The name of the device generating the graphic overlay
3. Altitude at time of photo
4. Image Source/Credit. Please indicate if you want to be credited and how. We do not wish to dox anyone but we do want to appropriately give credit where it is due.
Gallery
Note:
Some photos are cropped due to the size limit for uploaded files.
 |
|
|---|---|
| Source/Credit | Globular EPIC Bikini @FlatSlugbrains on Twitter |
| Altitude | 11074 m |
| Dip | 3.3° |
| Device | Theodolite |
 |
|
|---|---|
| Source/Credit | @Tylerthepilot_ on Twitter |
| Altitude | 35820 m |
| Dip | 4.8° |
| Device | Theodolite |
 |
|
|---|---|
| Source/Credit | McToon |
| Altitude | 35091 ft |
| Dip | ~4° |
| Device | Theodolite |
 |
|
|---|---|
| Source/Credit | @dwolfman54 on Twitter |
| Altitude | 33709 ft |
| Dip | >2° |
| Device | Theodolite |
 |
|
|---|---|
| Source/Credit | BK, flight from Newcastle to Brisbane, in Australia: |
| Altitude | 36706 ft |
| Dip | ~2° |
| Device | Theodolite |
 |
|
|---|---|
| Source/Credit | Wolfie6020 |
| Altitude | 46000 ft |
| Dip | |
| Device | cockpit display |