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The direction a bicycle has traveled can be determined by examining its tracks and thinking about tangent lines, geometric constraints and the bike's steering mechanism
Objects with icosahedral symmetry occur in nature only at microscopic scales, including quasicrystals, many viruses and some beautiful protozoa in the radiolarian family
The exact angles of crystals reveals their underlying structure as given by repeating lattices of atoms and molecules, as explained in this video by geometer George Hart
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BoraZ Why Do Top Athletes Suddenly Develop “the Yips”—a Tendency to Choke under Pressure? http://t.co/ujtnhm5pHI BoraZ Artist Goes Through His "Sloth Period" http://t.co/WW12cpUJ94
Myrmecos Thanks @RelUnrelated @JDF279, but @JamieFrater has not answered previous emails, and nothing I send gets through to anyone else, either.
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The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
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