Soil liquefaction. Soil liquefaction describes a phenomenon whereby a saturated or partially saturated soil substantially loses strength and stiffness in response to an applied stress, usually earthquake shaking or other sudden change in stress condition, causing it to behave like a liquid.
How to send recurring emails and reminders. With the Boomerang for Gmail extension, you can schedule easy recurring email reminders right from your inbox. Boomerang is my missing piece for Gmail - absolutely the best thing that happened to my inbox in recent months! Schedule recurring emails to: How to send recurring emails.
Gmail Backups. Once you permanently delete a message in Gmail, you cannot retrieve it again, but technically it sticks around in Google's system for a little while longer. According to its stated policy, Google creates regular backups of your emails as a precaution in the event of data loss on individual servers.