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.
Substituting the recommended 8 cups of water with 8 cups of green tea could lead to excess caffeine consumption. Drinking too much green tea can cause you to feel jittery, have trouble sleeping, experience diarrhea or constipation, or have feelings of nausea or a general sense of restlessness.