| ID | #1632837730 |
| Added | Tue, 28/09/2021 |
| Author | July N. |
| Sources | The San Francisco Chronicle
|
| Phenomena | |
| Status | Hypothesis
|
Initial data
San Francisco, California, CHRONICLE, June 5, 1909, p.
THE ALLEGED PLANE PROVES A MIRAGE
IMPERIAL, June 4. - After misleading people in all parts of the Imperial Valley, it has now become known that the alleged airship, which, according to various people, was seen several evenings at dusk over the Salton Sea, was a mirage.
The mirage was visible for several minutes this evening, and many people looked at it with surprise, since today it took the form of a row of tents and inverted poplars that hung in clear outlines for some time between sunset and dark in the sky.
If we consider this phenomenon less clearly than today, this phenomenon could easily be mistaken for an airship. Before there was less vegetation, the mirage over the Salton Sea was a common occurrence.
Original news
San Francisco, California, CHRONICLE, 5 June 1909, page
SUPPOSED AIRSHIP PROVES A MIRAGE
Atmospheric Freak in Imperial Valley Mystified the Residents.
IMPERIAL, June 4. - After mystifying people in all parts of the Imperial valley, it is now learned that the supposed airship, which was said by various people to have been seen on several evenings at twilight over Salton sea, was a mirage. The mirage was conspicuous this evening for a few minutes, and was viewed with wonderment by many people, as to-night it took the form of a row of tents and cottonwood trees inverted, that, hung in clear outlines for a time between sunset and dark in the sky.
Viewed less distinctly than it was to-night, this phenomena might easily have been mistaken for an airship. Before there was less vegetation here, the mirage was a common sight over the Salton sea.
Hypotheses
Mirage
Optical phenomenon in which the air in the result of the refraction of light rays in addition to items in their true position, see their virtual images in the direct, inverted or severely distorted.
Distinguish mirages:
- lower
- top
- side
Inferior Mirage occurs when a large vertical temperature gradient (drop it with the height) over a superheated flat surface, often desert or paved road. Usually this "puddle" on asphalte or sand.
Investigation
Resume
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