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.
But unless you know what you are doing when you go for tea, you may be getting way too much fluoride. All tea plants have an affinity for fluoride, so indiscriminate consumption of the brown brew can lead to soaring levels of fluoride in the body, especially if itâs brewed it with fluoridated water.