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Curiosity Mars Rover Sees Trend in Water Presence

By Guest PostMarch 20, 2013Sciencealuminum, apxs, arizona state university, basalt like proportions, calibration target, curiosity mars rover, dan, drilled rock, evidence, hydrated minerals, iron, iron bearing rocks, jim bell, knorr rock, magnesium, mars, mast camera, mastcam, maxim litvak, melissa rice, mudstone rock, NASA, silicon, trend, veins, water bearing minerals, water presence, yellowknife bay

THE WOODLANDS, Texas – NASA’s Mars rover Curiosity has seen evidence of water-bearing minerals in rocks near where it had already found clay minerals inside a drilled rock.

Last week, the rover’s science team announced that analysis of powder from a drilled mudstone rock on Mars indicates past environmental conditions that were favorable for microbial life. Additional findings presented on March 18 at a news briefing at the Lunar and Planetary Science Conference in The Woodlands, Texas, suggest those conditions extended beyond the site of the drilling. (more…)

Distorted Art

By Guest PostFebruary 10, 2012Culturealuminum, art, art in distortion, black ribbon, clouds roll by, conceptual, cord, david meyer, distorted, ephemeral, flour sculpture, greater reston arts center, imagery, leah frankel, moonscape, personal discovery, photograph, suzi fox, topographic map, university of delaware, virginia

*UD art professor creates sculptures from baking flour, aluminum*

There’s a quality to David Meyer’s art that’s both conceptual and ephemeral, sort of like watching the clouds roll by.

You see with your mind, not your eyes. And even then, as with clouds, shapes move. Things change.

There’s art in distortion. (more…)

Searching for the “Perfect Glass”

By Guest PostJune 18, 2011Sciencealuminum, atmospheric pressure, atomic structures, atoms, carnegie, cerium, cerium aluminum glass, crystals, favorablesystem, geophysical laboratory, gigapascals of pressure, glasses, ho kwang mao, metallic glass, minerals, silica, zeolite

Washington, D.C.— Glasses differ from crystals. Crystals are organized in repeating patterns that extend in every direction. Glasses lack this strict organization, but do sometimes demonstrate order among neighboring atoms. New research from Carnegie’s Geophysical Laboratory reveals the possibility of creating a metallic glass that is organized on a larger scale. Their results are published June 17 in Science.

Scientists have discovered glasses that demonstrate order among the nearest neighboring atoms, called short-range order, and a slightly wider range of atoms, called medium-range order. Most research about finding or creating a glass with a long-range, nearly crystalline, level of order—referred to as the perfect glass state—has been conducted on ice and the minerals silica and zeolite. But no research into long-range order glass has been successful until now. (more…)

Fireworks Produce High Levels of Toxic Particles

By Guest PostDecember 8, 2010Environment1 micrometer, aluminum, amusement park, arrhythmia, audrey smargiassi, bacteria, cardiovascular diseases, chlorine, composition, concentration, contaminants, downtown, emitted gases, every summer, explosions, fireworks, gas, health problems, heart attacks, heart troubles, international fireworks competition, ischemia, la ronde, manganese, marc averette, miami, micrometers, particles, potassium, respiratory problems, smoke, spectacular, titanium, toxic particles

Fireworks. Downtown Miami on July 4, 2007. Image credit: Marc Averette. Source: Wikipedia

Fireworks can be spectacular. However, the gas and smoke produced by the colorful explosions carry extremely high levels of toxic particles, according to a study by Audrey Smargiassi, a professor at the Université de Montreal Department of Environmental and Occupational Health.

Smargiassi conducted one of the first studies examining the composition of the emitted gases and the concentration of the particles. In addition, her study is unique as she collected her data below the fireworks display where spectators usually stand. Previous studies usually collected data from nearby rooftops.

The study was conducted in 2007 during nine separate shows presented at La Ronde amusement park where 5.7 million spectators attend an international fireworks competition every summer. (more…)

Tag Archives: aluminum

Curiosity Mars Rover Sees Trend in Water Presence

Distorted Art

Searching for the “Perfect Glass”

Fireworks Produce High Levels of Toxic Particles