Quantum mechanics/Casimir effect in one dimension. Abstract The Casimir effect is interesting because it introduces the concept of Ramanujan summation of the divergent series, 1+2+3+4+..., and because it offers experimental evidence that empty space is not truly empty. Every step in this derivation of the Casimir effect uses straight-forward and familiar mathematics.
Man's Kidney Failure Linked To Massive Tea Consumption. The puzzling case of a 56-year-old U.S. man who suddenly developed weakness, fatigue and body aches is leading doctors to warn that massive consumption of tea may be responsible.
Iced tea and kidney failure. What you need to know about oxalate crystals and your diet. Drinking too much iced tea might be surprisingly hard on your kidneys, a new case report contends. After conducting a kidney biopsy on a 56-year-old man with unexplained kidney failure, doctors discovered numerous oxalate crystals in his kidney tissue.