Gwnewch y pethau bychain

Day: November 26, 2010

There Is More To The Local Movement Than Just Food : TreeHugger

There’s nothing shocking in this, but its nice to have some numbers.

There Is More To The Local Movement Than Just Food : TreeHugger

According to a study commissioned by Michigan’s Local First, “when West Michigan consumers choose a locally owned business over a non-local alternative, $73 of every $100 spent stays in the community. By contrast, only $43 of every $100 spent at a non-locally owned business remains in the community.” This year, a coalition of groups is promoting a holiday challenge to shop downtown and support local businesses.

Your mind, well and nicely blown

The world is not only stranger than we imagine, it’s stranger than we can imagine. And that is *awesome*.

Mark Morford: Your mind, well and nicely blown

We are never going to run out.

This is the good news. Wait, check that: This is the astonishing, God-exploding, soul-altering, holier-than-wow news you must sip like a fine absinthe and jack straight into your bloodskin like a heroin bomb and then suck into your very anima like Lindsay Lohan on a coke bender.

It might sound obvious, the idea that wonders will never cease, that we will continue to be blown away by new discoveries for as long as we shall exist, that the world will keep astonishing us with stunning ideas, organisms, diseases and cures, synapses and connections, modes of being and ways of understanding for all eternity, despite our efforts to thwart it, deny it, reject it, or dumb ourselves down so much that we no longer have a goddamn clue what’s going on.

But it’s not obvious at all. We are, after all, nothing if not preternaturally jaded and wary. Many assume we’re at a point in history when we’ve made most of the major breakthroughs and discoveries, have established all the laws of time and physics we are ever going to need. No more man on the moon, no more discovery of antibiotics, no more E=MC2, no more sorry-Pope-the-world-ain’t-flat kind of epiphanies left.

My Helical Tryst: Review of the TSA X-ray backscatter body scanner safety report: hide your kids, hi

I’ve been reluctant to weigh in on the TSA scanners because there simply wasn’t enough data, pro or con, to really make a decision about their safety. Jason Bell goes a long way towards giving us more hard data to consider, and it’s somewhat alarming.

I still maintain that the real problem with this sort of thing is that it doesn’t actually improve the safety of air travel to any meaningful degree, unless the object is to make flying so onerous that no one bothers to do it anymore.

My Helical Tryst: Review of the TSA X-ray backscatter body scanner safety report: hide your kids, hide your wife

Last spring, a group of scientists at the University of California at San Francisco (UCSF) including John Sedat Ph.D., David Agard Ph.D., Robert Stroud, Ph.D. and Marc Shuman, M.D. sent a letter of concern to the TSA regarding the implementation of their ‘Advanced Imaging Technology’, or body scanners as a routine method of security screening in US airports. Of specific concern is the scanner that uses X-ray back-scattering. In the letter they raise some interesting points, which I’ve quoted below:

  • “Our overriding concern is the extent to which the safety of this scanning device has been adequately demonstrated. This can only be determined by a meeting of an impartial panel of experts that would include medical physicists and radiation biologists at which all of the available relevant data is reviewed.”
  • “The X-ray dose from these devices has often been compared in the media to the cosmic ray exposure inherent to airplane travel or that of a chest X-ray. However, this comparison is very misleading: both the air travel cosmic ray exposure and chest X-rays have much higher X-ray energies and the health consequences are appropriately understood in terms of the whole body volume dose. In contrast, these new airport scanners are largely depositing their energy into the skin and immediately adjacent tissue, and since this is such a small fraction of body weight/vol, possibly by one to two orders of magnitude, the real dose to the skin is now high.”
  • “In addition, it appears that real independent safety data do not exist.”
  • “There is good reason to believe that these scanners will increase the risk of cancer to children and other vulnerable populations. We are unanimous in believing that the potential health consequences need to be rigorously studied before these scanners are adopted.”
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