Quantum Leaps, Long Assumed to Be Instantaneous, Take Time

 

 

 

 

 

When quantum mechanics was first developed a century ago as a theory for understanding the atomic-scale world, one of its key concepts was so radical, bold and counter-intuitive that it passed into popular language: the “quantum leap.” Purists might object that the common habit of applying this term to a big change misses the point that jumps between two quantum states are typically tiny, which is precisely why they weren’t noticed sooner. But the real point is that they’re sudden. So sudden, in fact, that many of the pioneers of quantum mechanics assumed they were instantaneous.

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A importância de usar a linguagem afetiva com as crianças

 

 

 

 

 

 

Fale de forma bondosa comigo, sem levantar a voz, mas com a firmeza de quem pode me convencer de tudo o que sou capaz de fazer. Fale comigo com sorrisos mais uma vez, para que eu aprenda rápido que neste mundo manda o amor, e não o medo. Presenteie-me palavras de afeto sempre que puder para que eu possa dominar o quanto antes a linguagem das emoções…

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Chimpanzee Brain Organoids Hint at Secrets of Human Evolution

 

 

 

 

 

At some point during human evolution, a handful of genetic changes triggered a dramatic threefold expansion of the brain’s neocortex, the wrinkly outermost layer of brain tissue responsible for everything from language to self-awareness to abstract thought. Identifying what drove this evolutionary shift is fundamental to understanding what makes us human, but has been particularly challenging for scientists because of ethical prohibitions against studying the developing brains of our closest living relative, the chimpanzee, in the lab.

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