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2

On a larger scale, the direction of stirring can be used to optimize homogenization of complex mixtures. For instance, paint-like products can be mixed with a propellor-type blade. When the direction of rotation orients the blade pitch so as to force liquid down and around, a vortex is created which may dip so low as to allow air to be incorporated into the ...


8

No, for three reasons: Firstly, you need a relatively large molecule and/or a high viscosity and/or a strong shear/extensional flow, before the molecule even notices that it´s in a nonuniform environment. The molecule, if it has an elongated form, will then align perpendicular to the normal vector of that flow field. That only occurs for sufficiently ...


6

In short: if the direction of stirring were a both reproducible and highly significant parameter for the synthesis of chiral molecules, the manufacturers would offer a back- and forward direction of stirring by default all across their stirrers. But no, I'm not aware that there is such an effect. Note, however, beside the stirring plate in the (small scale) ...


13

Circularly polarized light is like a helix that twists through space. The two components are mirror images of each other. Now, every molecule interacts with both the left-handed twisting light and the right handed twisting light. The interactions differ. Every molecule, in different orientations, interact differently with the left-handed and the right-handed ...


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