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 drinking too much amount of coffee will cause harm to health. Coffee contains caffeine which can let the nervous system high and cause insomnia to be excited. It will cause the nervous tension. If you absorb too much caffeine, you will be prone to have tinnitus heart hyperfunction which is the beating of the heart.