The Great War
Published on 31 May 2018The German spring offensive has lost some traction over the past few weeks but the Allies are still under pressure. With Operations Blücher and York, the Germans are getting within 50 miles of Paris again, just as they did in 1914.
June 1, 2018
50 Miles To Paris – Third Battle Of The Aisne I THE GREAT WAR Week 201
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Pushing back the beginnings of life on Earth
In Wired, Rebecca Boyle discusses the fossil record of life and how recent discoveries keep moving the date further and further back in Earth’s history:
In the arid, sun-soaked northwest corner of Australia, along the Tropic of Capricorn, the oldest face of Earth is exposed to the sky. Drive through the northern outback for a while, south of Port Hedlund on the coast, and you will come upon hills softened by time. They are part of a region called the Pilbara Craton, which formed about 3.5 billion years ago, when Earth was in its youth.
Look closer. From a seam in one of these hills, a jumble of ancient, orange-Creamsicle rock spills forth: a deposit called the Apex Chert. Within this rock, viewable only through a microscope, there are tiny tubes. Some look like petroglyphs depicting a tornado; others resemble flattened worms. They are among the most controversial rock samples ever collected on this planet, and they might represent some of the oldest forms of life ever found.
Last month, researchers lobbed another salvo in the decades-long debate about the nature of these forms. They are indeed fossil life, and they date to 3.465 billion years ago, according to John Valley, a geochemist at the University of Wisconsin. If Valley and his team are right, the fossils imply that life diversified remarkably early in the planet’s tumultuous youth.
The fossils add to a wave of discoveries that point to a new story of ancient Earth. In the past year, separate teams of researchers have dug up, pulverized and laser-blasted pieces of rock that may contain life dating to 3.7, 3.95 and maybe even 4.28 billion years ago. All of these microfossils — or the chemical evidence associated with them — are hotly debated. But they all cast doubt on the traditional tale.
As that story goes, in the half-billion years after it formed, Earth was hellish and hot. The infant world would have been rent by volcanism and bombarded by other planetary crumbs, making for an environment so horrible, and so inhospitable to life, that the geologic era is named the Hadean, for the Greek underworld. Not until a particularly violent asteroid barrage ended some 3.8 billion years ago could life have evolved.
But this story is increasingly under fire. Many geologists now think Earth may have been tepid and watery from the outset. The oldest rocks in the record suggest parts of the planet’s crust had cooled and solidified by 4.4 billion years ago. Oxygen in those ancient rocks suggest the planet had water as far back as 4.3 billion years ago. And instead of an epochal, final bombardment, meteorite strikes might have slowly tapered off as the solar system settled into its current configuration.
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Spiked armour
Lindybeige
Published on 11 Nov 2012In summary: no.
www.LloydianAspects.co.uk
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QotD: Travelling with a political campaign
One of the constant nightmares of traveling with politicians is the need to keep them in sight at all times. Every presidential campaign has its own fearful litany of horror stories about reporters – and, occasionally, even a key staff member – who thought they had plenty of time to “run across the street for a quick beer” instead of hanging around in the rear of some grim auditorium half-listening to the drone of a long-familiar speech, only to come back in 20 minutes to find the auditorium empty and no sign of the press bus, the candidate or anybody who can tell him where they went. These stories are invariably set in places like Butte, Buffalo or Icepick, Minnesota, on a night in the middle of March. The temperature is always below zero, there is usually a raging blizzard to keep cabs off the street, and just as the victim remembers that he has left his wallet in his overcoat on the press bus, his stomach erupts with a sudden attack of ptomaine poisoning. And then, while crawling around on his knees in some ice-covered alley and racked with fits of projectile vomiting, he is grabbed by vicious cops and whipped on the shins with a night stick, then locked in the drunk tank of the local jail and buggered all night by winos.
These stories abound, and there is just enough truth in them to make most campaign journalists so fearful of a sudden change in the schedule that they will not even go looking for a bathroom until the pain becomes unendurable and at least three reliable people have promised to fetch them back to the fold at the first sign of any movement that could signal an early departure. The closest I ever came to getting left behind was during the California primary in 1972, when I emerged from a bathroom in the Salinas railroad depot and realized that the caboose car of McGovern’s “victory train” was about 100 yards further down the tracks than it had been only three minutes earlier. George was still standing outside on the platform, waving to the crowd, but the train was moving – and as I started my sprint through the crowd, running over women, children, cripples and anything else that couldn’t get out of my way, I thought I saw a big grin on McGovern’s face as the train began picking up speed….… I am still amazed that I caught up with the goddamn thing without blowing every valve in my heart, or even missing the iron ladder when I made my last-second leap and being swept under the train and chopped in half by the wheels.
Ever since then I have not been inclined to take many risks while traveling in strange territory with politicians. Even the very few who might feel a bit guilty about leaving me behind would have to do it anyway, because they are all enslaved by their schedules, and when it comes to a choice between getting to the airport on time or waiting for a journalist who has wandered off to seek booze, they will shrug and race off to the airport.
Hunter S. Thompson, “Fear and Loathing on the Campaign Trail ’76: Third-rate romance, low-rent rendezvous — hanging with Ted Kennedy, Jimmy Carter, and a bottle of Wild Turkey”, Rolling Stone, 1976-06-03.
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