Vibration Meter, seismograph vs 3

Vibration meter is an app called seismograph or seismometer, which measures the strength of vibration, quakes, earthquakes, vibrations of the human body or any other objects around you. Our app allows for detecting and recording of seismic waves generated by earthquakes, volcanic eruptions, avalanches and other sources of vibration and shocks. Accelerometer in your mobile phone is used for detection of vibrations and measurement analysis. Graph presents a record of the ground motion at a measuring point. Ground movement or an object is presented as a function of time in the three Cartesian axes, with the z axis perpendicular to the Earth's surface and the x- and y- axes parallel to the surface. Mercalli intensity scale is a seismic scale used for measuring the intensity of an earthquake. It measures the effects of an earthquake and it is distinct from the moment of magnitude. Richter Scale assigns a magnitude number to quantify the energy released by an earthquake. Peak Ground Acceleration (PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at location. PGA is equal to the amplitude of the largest absolute acceleration recorded on an accelerogram at a site during a particular earthquake. In this app we use Instrumental Intensity Scale (developed by The United States Geological Survey) which maps peak ground acceleration and peak ground velocity on an intensity scale similar to the felt Mercalli Scale. These values are used to create shake maps by seismologists on around the world. Mercalli Intensity Scale distinguishes the following levels of vibration and impact damage: I. Instrumental - Not felt. Recorded by seismographs. II. Weak - Felt only on top floors of high buildings. III. Slight - Felt indoors, like a passing light truck. IV. Moderate - Windows, doors rattle. Like passing train. V. Rather Strong - Felt by all. Small objects upset. VI. Strong - Books off shelves. Trees shake. Damage. VII. Very Strong - Difficult to stand. Buildings damaged. VIII. Destructive - Significant damage. Trees broken. IX. Violent - General panic. Serious damage. Cracks. X. Intense - Most buildings destroyed. Rails bent. XI. Extreme - Rails bent greatly. Pipelines destroyed. XII. Catastrophic - Near total damage. This app allows you monitor and share the results of your measurements with other users. Measure and monitor all vibration and shocks using smartphone or tablet!

3-13.info keeps score for Three-Thirteen (3-13), the eleven-round rummy game where the deal grows every round and the wild card climbs with it — 3s are wild in the three-card round, Kings by the last. Lowest total wins. Built for the kitchen table: • Round-by-round score entry with dealer rotation and a wild-card reminder every round • Mark who went out — zeros are highlighted in the round history • Winner screen with a shareable results card for the group chat • Series play — best of 3 or best of 5, with rotated first deal • Stats — standings, win percentages, best and worst games, filterable by the group you play with • Player profiles with photo avatars • Backup and restore — one file with every player, game, and photo, easy to move to a new phone • The full rules built in, plus the common house rules (aces high, face cards 11-12-13, Jokers as extra wilds, a 14-card final round) as per-game toggles Private by design: scores stay on your phone. No account, no ads, no tracking, and it works offline. Printable paper score sheets and the complete rules also live at 3-13.info.