Eucalipto arco-íris: a árvore mais bonita do mundo

O eucalipto deglupta é comumente conhecido como o eucalipto arco-íris por causa de sua maneira única de derramar sua casca. Uma vez derramada, a casca interna que é revelada é verde brilhante, mas eventualmente amadurece para azul, roxo, laranja e, eventualmente, marrom. O eucalipto arco-íris não perde sua casca de uma só vez, mas em seções ao longo do ano, permitindo o incrível efeito do arco-íris.

Também conhecida como ‘goma de Mindanao’, ou ‘goma de arco-íris’, esta bela árvore é nativa das Filipinas, Indonésia e Papua Nova Guiné. É a única espécie de eucalipto que geralmente vive na floresta tropical – com uma extensão natural que se estende até o hemisfério norte

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Ligação química entre átomos é registrada pela primeira vez; veja vídeo

Cientistas fizeram registro sem querer. Fenômeno microscópico ocorre em escala 500 mil vezes menor que a espessura de um fio de cabelo


Pela primeira vez na história, cientistas da Universidade de Nottingham, na Inglaterra, filmaram átomos rompendo e formando ligações químicas. O fenômeno microscópico ocorre em uma escala muito pequena, entre 0,1 e 0,3 nanômentro — o que é 500 mil vezes menor que a espessura de um fio de cabelo.

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Giant Chinese paddlefish declared extinct after surviving 150 million years

Beijing — Scientists say a giant fish species that managed to survive at least 150 million years has been completely wiped out by human activity. Research published in the Science of The Total Environment this week says the giant Chinese paddlefish, also known as the Chinese swordfish, is officially extinct.

The monster fish, one of the largest freshwater species in the world with lengths up to 23 feet, was once common in China’s Yangtze River. Due to its speed it was commonly referred to in China as the “water tiger.”

A model of a giant Chinese paddlefish is seen on display in Chongqing, China.
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What do we do with all the chemical elements? This ingenious periodic table shows you

An interactive periodic table with pictures makes it easy to see how each element is used.

The periodic table is an important but rather dry scientific tool. It lists all the chemical elements, ordered by their atomic numbers. Elements with similar behavior are grouped in the same column (called a group), with metals generally on the left and non-metals (gases) on the right. Rows are called “periods” – hence, periodic table.

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Scientists Find First Observed Evidence That Our Universe May Be a Hologram

Physicists finds evidence from just after the Big Bang that supports the controversial holographic universe theory.

An international study claims to have found first observed evidence that our universe is a hologram.

What is the holographic universe idea? It’s not exactly that we are living in some kind of Star Trekky computer simulation. Rather the idea, first proposed in the 1990s by Leonard Susskind and Gerard ‘t Hooft, says that all the information in our 3-dimensional reality may actually be included in the 2-dimensional surface of its boundaries. It’s like watching a 3D show on a 2D television.

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Quantum Biology May Help Solve Some of Life’s Greatest Mysteries

In one of the University of Sheffield’s physics labs, a few hundred photosynthetic bacteria were nestled between two mirrors positioned less than a micrometer apart. Physicist David Coles and his colleagues were zapping the microbe-filled cavity with white light, which bounced around the cells in a way the team could tune by adjusting the distance between the mirrors. According to results published in 2017, this intricate setup caused photons of light to physically interact with the photosynthetic machinery in a handful of those cells, in a way the team could modify by tweaking the experimental setup.1

That the researchers could control a cell’s interaction with light like this was an achievement in itself. But a more surprising interpretation of the findings came the following year. When Coles and several collaborators reanalyzed the data, they found evidence that the nature of the interaction between the bacteria and the photons of light was much weirder than the original analysis had suggested. “It seemed an inescapable conclusion to us that indirectly what [we were] really witnessing was quantum entanglement,” says University of Oxford physicist Vlatko Vedral, a coauthor on both papers.

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