Physics Asked on June 24, 2021
At around 33:20 to 33:37 of this video, It is said that biotic processes prefer right-handed molecules and this preference is one which can not exist in regular euclidean space.
Sure I’ve heard about all the curved space-time stuff in relativity but how on earth does the preference for certain handed molecules by biological process relate to the nature of ambient space?
For reference, here is a definition of Euclidean space from Britannica:
Euclidean space, In geometry, a two- or three-dimensional space in which the axioms and postulates of Euclidean geometry apply; also, a space in any finite number of dimensions, in which points are designated by coordinates (one for each dimension) and the distance between two points is given by a distance formula.
Left and right hand figure is same in Euclidean space, just take a shape L, if right hand and left hand almost identical in Euclidean space, now imagine that in non Euclidean space, eg, geodesic the same L shape both horizontal and vertical segment of L shape is bend inwards and now imagine is left hand image both arms of L bend outwards,(if imagine the same plane) biological molecules cannot form by combining both left handed and right handed molecule because of this , so they prefer either left hand or right handedness that is exactly seen in nature . If we live in Euclidian world both left and right hand molecule has no difference and easy to combine , but since not, we seen a specific preference for either right or left handed molecule .
Answered by babu thomas on June 24, 2021
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