How Einstein Arrived At His Theory Of General Relativity

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The principle of equivalence is a vital component of Einstein’s theory of general relativity. This principle states that inertial mass (resistance of an object to acceleration) and gravitational mass (gravitational attraction of an object to others) are the same. He illustrated this with a thought experiment involving an elevator: if he were to cut its cable and cause it to fall freely, the passengers inside would feel weightlessness as if gravity didn’t exist, because their inertial mass from falling would be identical to the gravitational mass they experience. Read full article here

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The Curious Case of the Ancient Brain

In 2008, archaeologists examining the University of York discovered something strange: the decapitated head of an Iron Age man and his very shrivelled but very much intact brain. How a centuries-old brain was preserved is still unknown, but research suggests that it could have been because of brain diseases like dementia. The Yorkshire man’s brain’s proteins were bunched up together, much like how dementia causes brain proteins to bunch up into plaques. This bunching up, or aggregation, could continue even after death, turning regions of the brain into hard masses. Read full article here


How Are Businesses Responding to Climate Risk?

Overwhelmingly, businesses believe that climate change poses a significant risk involving changes in regulations and consumer demand. However, the majority of them don’t have a formal climate mitigation plan set in place; instead, they’re focusing on stand-alone actions. Some of these include using more energy-efficient equipment, reducing waste and water consumption, and developing more sustainable products. While these actions do help, they’re using them to hit corporate social responsibility goals, not genuinely in the interest of mitigating climate change on a larger scale. Read full article here

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