Мы тестируем новую версию сайта. Эта версия обновляться не будет. Приносим извинения за временные неудобства.
We are testing a new version of the site. This version will not be updated. We apologise for any temporary inconvenience.
Estamos probando una nueva versión del sitio. Esta versión no se actualizará. Rogamos disculpen las molestias.

Site statistics

35225 facts from 177 countries related to 1198 phenomena have been registered in Archive. 2834 of them were solved, another 11033 are under verification for compliance with one of the 322 versions.

0 facts have been added for last 24 hours.

Share your story

You are in "Versions" section

This section includes information about possible versions explaining the true nature of the event described in the fact.

Defects materials

Added	Tue, 11/10/2016
Феномены	Poltergeist
Version type	Objects of natural origin

Defecto and the presence of internal stresses is characteristic for many materials. In particular glass objects suddenly fly into pieces, are cracked, they are chipped, etc. the Reason for this phenomenon is the effect of temperature difference on the glass containing residual internal stress. By passing temperature effects, we can distinguish mechanical (e.g., vibration).

Translated by «Yandex.Translator»