The optical illusion of the spinning ballet dancer

What you actually see is a deforming shadow – a black silhouette – but your brain makes sense of it instantly to see a young woman in full 3-D spinning on her vertical axis in one direction, clockwise or counterclockwise. But keep looking continuously at the picture a bit longer, and you will find out that her movement is ambiguous; indeed, you will probably see the dancer change – for just couple of seconds – direction.

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The Lunar Men: Five Friends Whose Curiosity Changed the World

After her excellent biography of Hogarth, Jenny Uglow gives us a nice and detailed history of the Lunar men. Their personal adventures and family stories and tragedies are intertwined beautifully with their intellectual passions and scientific pursuits. She describes sufficiently the revolutions of this period that changed the political and social systems, such as the French and the American Revolutions as well as, the revolutionary advances in science, such as these of Linnaeus and Lavoisier.

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The End Of Science: Facing The Limits Of Knowledge In The Twilight Of The Scientific Age by John Horgan

John Horgan’s thesis is that we are coming to an era where all the fundamental scientific theories have been discovered and science as we know it today is coming altogether in an end. Horgan considers fundamental, theories such as Darwin’s natural selection, Einstein’s general relativity and quantum electrodynamics. That means theories that can apply, to the best of our knowledge, throughout the entire universe at all times since its birth.

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The Callendar Effect by James Rodger Flemming

Guy Callendar was an English Engineer. In 1938 he published a paper, titled ‘The Artificial Production of Carbon Dioxide and its Influence on Temperature’ which laid out his earliest thoughts on the role of carbon dioxide in climate change. James Rodger Fleming is a professor at Colby College and a leading historian of atmospheric sciences and weather prediction. He has written a really fascinated book.

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