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Ancient Fossil Reveals Oldest Known Circulatory System

By Guest PostApril 13, 2014Nature, Scienceaurora australis, cambrian period, cardiovascular system, China, circulatory system, craig aumack, don perovich, earliest known, fuxianhuia protensa, ice breaker, ice pond, kate crawford, ken golden, life of ice, lili cheng, nicholas strausfeld, pompeii, united kingdom, university of arizona, vascular system, xianguang hou, xiaoya ma, yunnan province

A fossil creature buried in an “invertebrate version of Pompeii” more than half a billion years ago reveals the first-known cardiovascular system in exquisitely preserved detail.

An international team of researchers from the University of Arizona, China and the United Kingdom has discovered the earliest known cardiovascular system, and the first to clearly show a sophisticated system complete with heart and blood vessels, in fossilized remains of an extinct marine creature that lived over half a billion years ago. The finding sheds new light on the evolution of body organization in the animal kingdom and shows that even the earliest creatures had internal organizational systems that strongly resemble those found in their modern descendants. (more…)

Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions

By Guest PostJune 24, 2013Scienceals, ancient seawater concrete, berkeley lab, bessy synchrotron, chemical attack, cutting carbon emissions, drill core, emperor augustus, environmentally damaging, Germany, greenhouse gas emissions, gulf of naples, king abdullah university, library foundation, limestone, loeb classical, marie jackson, mediterranean sea, modern world, paulo monteiro, pliny the elder, pompeii, portland cement, pozzolan, pozzuoli bay, roman concrete, roman harbor, roman seawater concrete, samples, saudi arabia, secret, vitruvius, volcanic ash

Berkeley Lab scientists and their colleagues have discovered the properties that made ancient Roman concrete sustainable and durable

The chemical secrets of a concrete Roman breakwater that has spent the last 2,000 years submerged in the Mediterranean Sea have been uncovered by an international team of researchers led by Paulo Monteiro of the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), a professor of civil and environmental engineering at the University of California, Berkeley.

Analysis of samples provided by team member Marie Jackson pinpointed why the best Roman concrete was superior to most modern concrete in durability, why its manufacture was less environmentally damaging – and how these improvements could be adopted in the modern world. (more…)

‘Earth Perfect?’

By Guest PostOctober 23, 2012Culture, Natureancient greek, annette giesecke, book, contemporary architecture, delaware, earthly delights, ecological decline, ecological meaning, garden, hieronymus bosch, humanity, maine, naomi jacobs, Nature, new england, organic farming, perfect earth, political, pompeii, relationship, repository, roman gardens, roman studies, social, spiritual, symbolic, university, versailles

Professor’s new book examines nature, utopia and the garden

“the result of humanity’s attempt to carve out an ideal place in nature, thereby fashioning a ‘perfect’ earth” — is the subject of a new book, co-authored and edited by the University of Delaware’s Annette Giesecke.

Earth Perfect? Nature, Utopia, and the Garden is a lushly illustrated, 303-page volume that brings together essays from writers and experts across disciplines to study the relationship — historical, present and future — between humanity and the garden. (more…)

Volcanoes More Dangerous to Earth than Nuclear Bombs

By PravdaSeptember 2, 20101 commentEnvironmentantilles, april, atlantis, catania, crete-mycenaean, eruption, etna, Europe, eyyafyatlayokudlya, Hiroshima, Iceland, indonesian volcano, kamchatka peninsula, krakatau, martinique, mediterranean, minoan civilization, mont pele, peak sarychev, pompeii, santorini, sergei balmasov, sergei fedorov, soufriere, st vincent, tambora volcano, traffic jams, vesuvius, volcanic activity, volcanologist

Many still remember traffic jams in Europe, caused by the April eruption of Eyyafyatlayokudlya. Scientists around the world genuinely fear the catastrophic consequences of volcanic activity.

(more…)

Tag Archives: pompeii

Ancient Fossil Reveals Oldest Known Circulatory System

Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions

‘Earth Perfect?’

Volcanoes More Dangerous to Earth than Nuclear Bombs