In my earlier post I made the egregious mistake of calling atomic numbers "atomic weights".
(This doesn't change the terms of the sequences that I gave.)
Further, I now know that, as Ed Severn said, brass is an alloy of copper and zinc (not tin, as I thought).
As a puzzle, this one is not quite up to others, in that there is no term to compare with brass=? We could just as well add the values for copper and zinc as multiply them, per Ed's suggestion. Maybe more logically, since an alloy is more like an addition than a multiplication.
Still puzzling over first and fifth sequence. Someone else will have to supply the word to follow "stable" in the third. Located? Standing? Found? Is it a quotation?
At 05:57 AM 04/17/2000 -0700, you wrote: > At 04:38 AM 04/17/2000 -0700, you wrote: >>At 08:58 AM 04/16/2000 -0400, you [MIKE BISHOP] wrote: > >Explanations and further ideas re the sequences. > >>>"864 17280 144000 756000 ?" > >This seems to involve products of a number of powers of integers in some >increasing sequence, e.g. 5 is a factor of the second term but not of the >first, 7 is a factor of the last term given but of no previous terms. > >>>"1854 151811475 25512121523 7185514 212215 91449715 ?" >> >>NEXT TERM: 2191512520 > >Arrive at this by observing that the letters of "red" are the 18th, fifth, >fourth letters of the alphabet; the letters of "orange" are the 15th, 18th, >1st, 14th 7th, 5th letters, etc. Rainbow colors are often as red, orange, >yellow, green, blue, indigo, violet. >>> >>>"145118 238938 13152114201914 919 2085 192012125?" > >Using the same system of associating letters with integers, we read >"Near which mountain is the stable?" >Anyone have an idea for the next word? >>> >>>"10000000000 1101221 13044 2000 60A ?" >> >>NEXT TERM: 26G > >These are all expressions for the decimal number 1064. The first uses 2 as >base, the second 3, the next 5, followed by 8 and 13. Continuing to use the >bases found in the Fibonacci series, the next term is 1024 expressed with >base 21. >>> >>>"red=2065, blue=30814, green=1540903, yellow=2033794091, >>>?=20920192231" > >My guess is that these again use integers for letters, but there is another >twist I don't see yet. >>> >>>"Messenger, Peace, War, Jollity, Old Age, Magician, ?" >>> > >Still working on this, with hardly a clue. > >>>"silver=7, gold=21, iron=30, copper=63, brass=?" > >Someone has answered this. I don't believe there is an inarguable next term >in view of his observation that brass is not an element, but an alloy of >tin and copper (I think). > >>>"scy, tizr, vnb, crmo, mntc, feru, corh, nipd, cuag, ?" >> >>NEXT TERM: zncd >>> > >Again, chemical elements. sc is the symbol for scandium with atomic weight >of 21, y the symbol for yttrium, atomic weight 39. ti is titanium, weight >22; zr is zirconium, weight 40. Continue with the symbols of elements by >increasing weight. 23, 41 translates to vnb, 24, 42 to crmo, ... until we >get to 30, 48 which are the weights of zinc and cadmium or zncd. > >>>Thanks a lot for any help :) >> >>You're welcome. I like these!!! Still working on the others, have several >>ideas, will let you know progress. > >>Also will let you know the logic of my suggestions/solutions for the next >>terms I have given. > >Where did you get these? Any more similar challenges? They are fun. > >Mary Krimmel > > > >