Visibilité des planètes. Resources for Mystery Unit. Info science. Untitled. SOSMA2013 - ANATOMY. BioDigital Human: Test your browser. Technology « Science Today: Breaking science news from around the world. Earthquakes Turn Water Into Gold. Earthquakes have the Midas touch, a new study claims. Water in faults vaporizes during an earthquake, depositing gold, according to a model published in the March 17 issue of the journal Nature Geoscience. The model provides a quantitative mechanism for the link between gold and quartz seen in many of the world's gold deposits, said Dion Weatherley, a geophysicist at the University of Queensland in Australia and lead author of the study.
When an earthquake strikes, it moves along a rupture in the ground — a fracture called a fault. Big faults can have many small fractures along their length, connected by jogs that appear as rectangular voids. Water often lubricates faults, filling in fractures and jogs. About 6 miles (10 kilometers) below the surface, under incredible temperatures and pressures, the water carries high concentrations of carbon dioxide, silica and economically attractive elements like gold. Shake, rattle and gold During an earthquake, the fault jog suddenly opens wider.
Tetconst. © 2006-2012 Keith Sproul Materials and ideas listed here are in part unproven and may be hazardous to use in the construction and operation of experimental hot air balloons. Building and flying experimental aircraft involves significant risk and may lead to serious injury or death. Always obtain professional advice when building or flying human-carrying aircraft! Copyright Notice © Keith Sproul This balloon design, this web page, and this documentation are copyright © 2006 - 2012 by Keith Sproul. To make any hot air balloon is a large project. Before starting to make a tetrahedron hot air balloon, (or any hot air balloon, for that matter), you need to decide on several things: If using the VERTICAL GORE METHOD (my favorite), there is a very efficient way to make the panels. With this method, all you need is 200 to 400 panels, all the exact same size.
. * NOTE: These are flat-sided volumes. CHIN - Interactive Investigator - Database. CHIN - Interactive Investigator - Database - Fingerprints. Fingerprint Examination© RCMP A fingerprint is a mark left behind after the ridges on the fingers, hands, toes or feet touch an object. There are two types of prints: a direct fingerprint (it creates an impression) and a latent print (dirt, sweat or other residue that is pressed onto another object). Fingerprints have three main classes: the arch, whorl and loop. Within these three classes, there are an immense number of patterns that are different for each one of us. Aside from scars, there are forks, islands or spaces where the lines of a fingerprint make different latent prints. No two fingerprints are the same.
Fingerprints can be taken even from surfaces which are not smooth (e.g. clothing or paper towel). FBI.