The universal cover of the double doughnut is a hyperbolic space, where we only shrink the xy plane, but not the height
ME – also known as Chronic Fatigue Syndrome – has long been one of medicine’s most perplexing conditions. With no definitive diagnostic test and a legacy of scepticism in parts of the medical community, patients have often struggled to be believed. But a surge of new research may finally be shifting the landscape.
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Повреждение Ираном одного из американских авианосцев может привести к усилению агрессии США, рассказывает обозреватель издания 19FortyFive Эндрю Лэтэм.