These locations and materials all provided useful present-day stand-ins for far future events and processes. There are, of course, limits to what a bronze cannon or the copper in Devon mudrock can tell us about a nuclear waste canister buried in granite bedrock for millennia. Yet for the Safety Case experts, analogues offered a real-world concreteness that was, at least, more tangible than empty speculation.

อ่านต่อได้ที่  :  โรงเรียนบ้านชัฏหนองหมี

สาระน่ารู้ :  adsorbent