“It’s a pity that, just by using magnets, we’ve been destroying this scientific information that was stored there for 4 billion years.”
. “It’s like having this unique piece [of information] destroyed,” Vervelidou says. “Why would you buy an amazing painting and then throw some sauce on it?”
The problem is not new. Two decades ago, Weiss was studying rare meteorite samples to see whether some asteroids were ever big enough to have a dynamo—a churning molten core that generates magnetic fields. He saw spectacularly high magnetizations in each of the samples only to realize, later, that he’d been duped by magnets.
For the past 2 decades, Hasnaa Chennaoui Aoudjehane, a planetary scientist at the Hassan II University of Casablanca, has been trying to educate Saharan meteorite hunters about the dangers of hand magnets. But the message doesn’t always sink in. “We try explaining to hunters … ‘it’s the human heritage; it’s the history of the Solar System,” Chennaoui Aoudjehane says.
France Dernières Nouvelles, France Actualités
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