Tagnuclear waste

A Sapphire Hard Disk Meant to Last 10 Million Years

Science Now reports on a new project meant to address the problem of alerting people of the future to nuclear waste storage facilities:

Today, Patrick Charton of the French nuclear waste management agency ANDRA presented one possible solution to the problem: a sapphire disk inside which information is engraved using platinum. The prototype shown costs €25,000 to make, but Charton says it will survive for a million years. The aim, Charton told the Euroscience Open Forum here, is to provide “information for future archaeologists.” But, he concedes: “We have no idea what language to write it in.” […]

The sapphire disk is one product of that effort. It’s made from two thin disks, about 20 centimeters across, of industrial sapphire. On one side, text or images are etched in platinum—Charton says a single disk can store 40,000 miniaturized pages—and then the two disks are molecularly fused together. All a future archaeologist would need to read them is a microscope. The disks have been immersed in acid to test their durability and to simulate ageing. Charton says they hope to demonstrate a lifetime of 10 million years.

Full Story: Science Now: A Million-Year Hard Disk

(via Sam)

How to Warn People in the Future About Radioactive Waste and Other Harm

Here’s a site dedicated to finding ways to protect future beings from being contaminated to radioactive waste. There’s some great stuff here. Of course, people in the future will probably HAVE to be immune to radioactivity to even live on this planet.

Expert Judgement on Markers to Deter Inadvertent Human Intrusion into the Waste Isolation Pilot Plant

(via Boing Boing)

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