In a masterstroke of nostalgic design, Casio has launched the limited edition CA-500WEBF-1A, a collector’s timepiece commemorating the 40th anniversary of the cinematic classic, Back to the Future.

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Hanging by a thread: Wasp spiders, Argiope bruennichi, are known to incorporate so-called “stabilimenta” into their web structure, but the function of these “extra touches” has remained unknown.