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Post by yardstick on Jul 24, 2019 16:50:16 GMT -6
Hey yardstick - can you do the math here. What does one and half inches a year of further lunar orbit due to the earths 24 hour day? greater spin = greater centripetal force, so if the earth is slowing down, it has less centripetal force. That would equate to lower gravity. I would suggest that the increase in lunar orbit is the result of the lower earth gravity, not the cause. That also would indicate that the further lunar orbit has nothing to do with the 24 hour day. However, the earth slowing down would increase the day length. in addition, 1-1/2 inches: = .125 feet = 2.367 x 10 -5 miles (.00002367) the distance from the earth to the moon (per wikipedia) varies between 362,000 and 452,000 miles that's 3.62 x 10 5 and 4.52 x 10 5 miles. as such, and to do a comparison: the rough proportion of that 1-1/2 inch change to the current average distance (4.07 x 10 5 miles) would be approximately 1.5 x 10 10 that is, the average distance from the earth to the moon is 1,500,000,000 (1.5 billion) times larger than that 1-1/2 inches. in plain english: its negligible, and possibly well within the statistical variation allowed (6 sigma - only normal variation) 6 sigma is 6 parts per billion, and the ratio of distance is 1.5 parts per billion |
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Post by mike on Jul 24, 2019 18:47:29 GMT -6
I love that explanation, but I have barely a clue what that means bro
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Post by bernie on Jul 24, 2019 22:37:06 GMT -6
So, is this something that's normal and insignificant?
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jul 25, 2019 4:28:40 GMT -6
As far as I understand the given article, the writer speaks of a cyclical phenomenon, that causes earthquakes to happen more often and/or with greater intensity. This seems plausible to me, because the gravity of our moon is the main cause for the tides. It's only logical that this gravity also affects the crust of the earth, depending on the varying distance of the moon. The slowing down of the rotation is surely very very small, but may cause significant movements of tectonic plates. Would be interesting to find out if the count/intensity of earthquakes correlates with the distance moon - earth....the article suggests that being true (if I understood it correctly). Though there are more parameters affecting earthquakes, the moon may be indeed an important one. |
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Post by bernie on Jul 26, 2019 23:19:13 GMT -6
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Post by bernie on Jul 27, 2019 22:33:03 GMT -6
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Post by bernie on Jul 31, 2019 11:07:21 GMT -6
M 6.6 - 56km E of Lakatoro, Vanuatu
Tsunami Warning Center
Time
2019-07-31 15:02:33 (UTC)
Location
16.164°S 167.946°E
Depth
179.1 km
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Post by fitz on Aug 1, 2019 12:45:43 GMT -6
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Post by fitz on Aug 2, 2019 6:26:56 GMT -6
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Post by fitz on Aug 4, 2019 5:09:42 GMT -6
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Post by bernie on Aug 7, 2019 16:13:30 GMT -6
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Post by fitz on Aug 14, 2019 10:52:29 GMT -6
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Post by fitz on Aug 16, 2019 8:29:38 GMT -6
3 significant earthquakes in North America in the past 24 hours... M 4.2 - 4km WSW of South Hutchinson, Kansas (EMSC says its a 4.9) M 4.1 - 17km E of Esterhazy, Canada M 4.2 - 4km NW of Manhattan, Montana Watching Yellowstone and New Madrid...just sayin'. earthquake.usgs.gov/earthquakes/map/ Witness location : Hutchinson (United States of America) (7 km NE from epicenter) "Felt like an explosion under my house or that something crashed into the house outside. I saw everything move. Few things fell over. I’m ready to move! It’s getting worse. Surprised there is no cracks in my walls." "Things fell off dresser and refrigerator. Crack in ceiling completely across doorway. Jolted awake and bed shook for several seconds." "Violent rumble then huge bang. Pictures fell down and off the wall." "I work at a bank that is completely stone structure and it shook We thought someone ran into the building. Ceiling tiles were damaged" |
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Post by bernie on Aug 18, 2019 11:40:35 GMT -6
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Post by bernie on Aug 19, 2019 11:07:21 GMT -6
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