586 Million Year Cycle in Geology Matches Galactic Super-Cluster Spacings

submitted by: RayTomes
The longest geological cycle identified is described as about 600 million years in "Megacycles", the proceedings of a geological conference, Edited by G Williams. However Prof S Afanasiev of Moscow has determined the cycle very accurately to be 586.24 million years using his Nanocycles Method. It so happens that cosmologists, Broadhurst, T.J., Ellis, R.S., Koo, D.C. & Szalay (Nature 343, p 726) have observed regular mega-walls of galaxies at spacings that they describe as 128 Mpc/h,...

wisskomm wochenschau 2/08

submitted by: wisskomm
German vodcast about science communications. Diese Woche unter anderem über das Schülerprojekt Quantenphysik TV" ,eine Brodeur-Studie zur Nutzung von Blogs durch Journalisten, das Blog "Bad Astronomy" , den Erfolg von Podcasts und Vodcasts in den USA, eine Studie über die "conflict of interest"-Klausel , den Gerda Henkel Preis , Wikia Search , das kostenfreie Archiv von "focus", Dr. Quantum zum Doppelspaltexperiment, die DVD "Das geheimnisvolle Reich der Quanten" ( hier ein...

The Shaky Future of the Salton Sea

A former desert oasis faces environmental challenges, a water crisis and someday the Big One. Why we can't let the sun go down on the Salton Sea.

History's Warming

An ancient global warming episode drastically changed the planet. Life on Earth needed 200,000 years to recover. What we're headed for in the next century could be even bigger.

The (Ralph) Keeling Curve

After two decades watching atmospheric oxygen levels drop, a Scripps researcher's conclusions about climate could leave one feeling light-headed

Strong shaking in Los Angeles expected from southern San Andreas earthquake

linked profile(s): KimOlsen, SDSC
submitted by: video_collector
The southernmost San Andreas fault has a high probability of rupturing in a large (greater than magnitude 7.5) earthquake sometime during the next few decades. New simulations show that the chain of sedimentary basins between San Bernardino and downtown Los Angeles form an effective waveguide that channels Love waves along the southern edge of the San Bernardino and San Gabriel Mountains. Earthquake scenarios with northward rupture, in which the guided wave is efficiently excited, produce...
Authors: K. Olsen, K. B., S. m. Day, J. b. Minster, Y. Cui, A. Chourasia, M. Faerman, R. Moore, P. Maechling, And t. Jordan