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This section contains descriptions of unexplained facts provided by eyewitnesses or published in the media, as well as the results of their analysis by the group.

The hum of the Earth. Netherlands

ID #1721678818
Added Mon, 22/07/2024
Author July N.
Sources
Phenomena
Status
Hypothesis

Initial data

Initial information from sources or from an eyewitness
Incident date: 
22.07.2024 19:07
Location: 
Руурло
Netherlands

A slow, loud and deep sound in the air of Ruurlo city.

While we are sitting in the garden, we suddenly hear a very loud rumble coming from the east. By sound, it is a mixture of the sound of an airplane, a fighter and thunder. The sound gets louder and louder, and after a while it subsides again, without even flying over us. It seemed to have returned to where it came from.

We have a fairly open view, and we didn't recognize any aircraft anywhere. The sound was so heavy and pervasive that nothing on Earth could produce it.

Of course, we also looked at flight radar, and there are no flights in the area either.

Unfortunately, there is no record.

Original news

Traag, luid en diep geluid in de lucht

RUURLO, GD — Terwijl we in de tuin zitten horen we ineens een enorm hard gebrom uit oostelijke richting komen. Het is qua klank een mengsel van een vliegtuig, straaljager en donder. Dit wordt steeds luider en verzacht na een tijdje weer, zonder dat het ooit over ons heen vloog. Het leek terug te keren waar het vandaan kwam. We hebben vrij open zicht en konden nergens ook maar iets van een vliegtuig herkennen. Het geluid was dermate zwaar en alom aanwezig dat het onmogelijk kon worden geproduceerd door iets dat zich op de aarde bevindt. Natuurlijk ook even op flight radar gekeken, en ook daar, geen vlucht in de omgeving te bekennen. Helaas geen opname.

Hypotheses

List of versions containing features matching the eyewitness descriptions or material evidence

Airplane / Helicopter

An aircraft heavier than air for flights in the atmosphere (and outer space (e.g. An orbital aircraft)), using the aerodynamic lift of a glider to keep itself in the air (when flying within the atmosphere) and the thrust of a power (propulsion) installation for maneuvering and compensating for the loss of total mechanical energy to drag. 



A rotorcraft in which the lift and thrust required for flight are created by one or more main rotors powered by an engine or several engines. They differ in maneuverability, the ability to hover and almost vertical takeoff.

Investigation

Versions testing, their confirmation or refutation. Additional information, notes during the study of materials
Not enough information

Resume

The most likely explanation. The version, confirmed by the investigation
Not enough information

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