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Volcano earthquake report for Sunday, 1 November 2026
• M 4.9 - 204 km ENE of Nagqu, China
• M 2.1 - 55 km WNW of Skwentna, Alaska
• M 1.8 - 45 km SSE of Denali National Park, Alaska
• M 6.0 - 58 km SSE of Shima, Japan
• M 4.6 - 101 km SW of Basco, Philippines
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#430349
Wed 12 Jul 2017 03:05:PM
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Joined: Feb 2001
Posts: 678,977
Launch Director
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Launch Director
Joined: Feb 2001
Posts: 678,977 |
There is a very peculiar dynamics of granular matter, such as dry sand or grains of wheat. When these granular particles are left on a vibrating solid surface, they are not only subject to random vibrations, they are also under the spell of solid friction forces. In a new study published, researchers have extended our understanding of this problem. Source: Granular media friction explained: Da Vinci would be proud
David Cottle
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Granular media friction explained: Da Vinci would be proud
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