effect of plants derived compounds. Biological Systems: Tennakone has worked on the problem of biological L-D stereoselection and right-left symmetries in plants., suggesting that former could be spontaneous symmetry breaking in prebiotic chemical reactions or rapid growth of accidentally created, self-replicating handed molecule in racemic prebiotic medium. According to his findings, right-left asymmetries in plants can be classified into three distinct categories. (a) All individuals of the species has same handedness. (b) Individuals have either right or left-handedness, occurring with equal probabilities. (c) Individuals have no definable handedness, but some organs possesses either right or left-handedness. Static Electricity: Tennakone has published several papers in the area of static electricity including atmospheric effects. Recently he has hypothesized that perchlorate in Mars could be produced by electrolysis of sodium chloride following static electrification regolith and moisture condensation. Aluminum Leaching: Tennakone observed that fluoride enhance leaching of aluminum from cooking utensils. A subsequent work and repetition of the experiments by Tennakone et al. found that at 1ppm of F− leaching is not high as reported previously to pose a major toxicity issue. Later work of Tennakone and several other investigators have confirmed the enhancement Al leaching under culinary conditions, when F− concentration is 10 ppm or more. References External links 1940 births Living people Sinhalese physicists Deshabandu Sri Lankan expatriates in the United States University of Hawaiʻi alumni