Chelsea wald

10 articles
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    When Does a Consciousness Test Not Test for Consciousness?

    A pigeon looks at its reflection in the mirror. It sees a blue dot on the reflection’s breast. It reaches down and pecks at the dot on its own breast. Nautilus Members enjoy an ad-free experience. Log in or Join now . This is the classic behavior required for passing the “mirror test,” an influential […]

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    Our Cities Could Get a Whole Lot Smarter

    Pieces of SolaRoad, concrete blocks topped with solar cells, were recently installed in a bike path in Holland.SolaRoad Nautilus Members enjoy an ad-free experience. Log in or Join now . Remember having to stay at home and wait for phone calls? (If you’re below a certain age, you can consult old movies, books, or TV […]

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    5 Things That Sound, Move, or Smell Like a Nuclear Explosion

    The Licorne (“Unicorn”) thermonuclear test; Fangataufa, French Polynesia; 1970CTBTO Nautilus Members enjoy an ad-free experience. Log in or Join now . After most of the world’s nations signed the Comprehensive Nuclear-Test-Ban Treaty, in 1996,  they set up a new commission to watch out for clandestine explosions. Since then the commission (CTBTO) has wired the world […]

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    What Do Animals See in a Mirror?

    A controversial test for self-awareness is dividing the animal kingdom.

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    Austria’s Ahead-of-Its-Time Institute That Was Lost to Nazis

    In 1911, Popular Science Monthly published an enthusiastic description of a young, private experimental-biology institute in Vienna, lauding its “remarkable scientific productivity resulting from only eight years of research.” Nautilus Members enjoy an ad-free experience. Log in or Join now . The author, zoologist Charles Lincoln Edwards, attributed the success of the Biologische Versuchsanstalt (Insitute of […]