skipper

skipper

Member

Member since
Jun 4, 2009
Last active
Oct 16, 2010
Total activities
0

Activity feed

Recent contributions

  1. #Threads

    9fbea41d-90fa-411f-8a49-52d8e5481a86

    1) You can adjust the audio level with the volume control. As stated earlier this gives a qualitative measurement of the field...

  2. #Threads

    e15ed761-3775-41c0-a7e1-578fc12b7bc7

    Well, I was kind of hoping someone would raise an objection to using a radio receiver like this. Determining the total background...

  3. #Threads

    125020e4-1259-427e-b383-573918280e46

    radio volume will be the internal control of amplifier right? how does it being maintained constant at various frequencies/power, convey the strength...

  4. #Threads

    e41c6c53-b96f-4c14-bbf7-a590c0938130

    Can you think of a way to use a multimeter as a signal meter that measures field strength? If you attach an...

  5. #Threads

    0dc8f9ce-ea2f-4c21-93fe-90a1c338c2b7

    Mass is conserved. An electron has, like all massive particles, a rest mass. But electrons can only truly be at rest at...

  6. #Threads

    a39f9b68-ccc9-439f-8605-b793084de1b9

    durgais it measuring the received power or frequency?By "it" I assume you mean the radio? The power depends on the strength of...

  7. #Threads

    Measuring an electric field

    Riddle me this: If you have a battery-powered radio, can you think of a way to use it to get a qualitative...

  8. #Threads

    5ca3b380-d895-4adf-9599-098955dbf00b

    I assume you mean a waveform generator? A piece of equipment that has sine, sawtooth, square, etc waveforms at various amplitudes and...

  9. #Threads

    Hypercubic computers

    You may have heard of the Connection Machine. This was/is a massively parallel system in which the processors communicate with each other...

  10. #Threads

    53f9f599-395b-4c0d-b4d6-24436f853a2a

    Compressing files is about redundant codes. What counts as redundant depends on the file. Check out what MPEG and JPEG compression is...

  11. #Threads

    35f53ce8-6870-4615-9ddb-5043e3063fb1

    Okey dokey. I think I've managed to finally see the connection between the puzzles (starting with the Pocket Cube) and Riemann space...

  12. #Threads

    efa23417-76c1-4ad2-912a-2888dce35350

    One other detail I think is important: the figure I keep mentioning which you can form with an algorithm: "X,Y',Z',X", as long...

  13. #Threads

    a13dfa52-5736-4c80-8ab2-59cea36326f4

    Suppose there is a word, or 'work' W, in several parts (here, any sort of construction that be considered "computational" is possible,...

  14. #Threads

    ffd2f241-dfc0-4536-bb0d-65ea2b6569e4

    Hmm. I would say that the movie used a "toy model" of quantum physics.... Put it this way, if you see a...

  15. #Threads

    ceebfe81-fc38-4830-a58a-ee0d352b4638

    Ok, another clue for mathematicians. If you imagine the numbers are piles or stacks of Rubik's cubes, each looks different, but some...

  16. #Threads

    066ffff6-7037-4ba9-a40b-d2b289898020

    Let's look at the first few members of each sequence. 1 9 54 321 1,847 1 6 27 120 534 If I...

  17. #Threads

    77fec134-7903-4435-a78b-3d9c44733b9f

    Have you tried wikipedia, or google? A metric is just another term for a standard measurement or "distance generator". A space with...

  18. #Threads

    33ef9a5b-9716-44a2-a818-c91ec3bdc21b

    A Fibonacci series (recurrence) is: a[sub]n[/sub] = a[sub]n-1[/sub] + a[sub]n-2[/sub], with a[sub]1[/sub]= a[sub]2[/sub] = 1. So a[sub]3[/sub]= 1 + 1, a[sub]4[...

  19. #Threads

    0c2955d6-1f17-413e-bc9d-17b980478d07

    Oops, the second sequence isn't complete, I missed some terms at the end: 1 6 27 120 534 2,256 8,969 33,058 114,149...

  20. #Threads

    c4321bcf-2ff2-4319-bb79-6812b2db3a0f

    Ok both series are what "falls out" of the Pocket Cube. The second is formed by using only quarter turns (QTM), and...

  21. #Threads

    c2e8f97b-92ef-464f-82ae-eba5c1c11674

    This is another sequence that adds to the same total. 1 6 27 120 534 2,256 8,969 33,058 114,149 360,508 930,588 1,350,652...

  22. #Threads

    Recurrence algorithms, logarithmic series etc

    Is there anyone here good at finding recurrence formulas in algorithm design? Or with a good grasp of a logarithmic series like:...

  23. #Threads

    2a7fe060-bef9-4e50-ad15-6b40c32f99e8

    Ok, apologies for the long absence. I have news from the front - the war is going well. No, wait, that was...

  24. #Threads

    17d2f048-6275-4c54-9a72-55f5e3522bb1

    With the T in hysteresis it's usually heat or electromagnetic energy, so abstracting this means going all the way to computational space...

  25. #Threads

    ab5c15cb-a4c4-4281-b4c4-38458a782da4

    You see, tensor calculus lets you do stuff like imagine what a tank of water, or its pressure gradient is like at...

  26. #Threads

    a0695da4-4034-43ec-9c63-a00730fa19bd

    Well, in Newton's time they were still searching for the "essence" of metals - the Philosopher's Stone - and using the forerunner...

  27. #Threads

    Crazy Cubology

    Our generator, who art in the group, give us this day our daily cube. And forgive our trespasses into the Moebius domain,...

  28. #Threads

    77b4d576-24bd-4f7f-8e9f-dd536cceb8d7

    Ok, check this out. If T = -T so the "-" vanishes, when you "rewrite" -T as T and the arrow changes...

  29. #Threads

    b2c1ee15-6355-4749-a364-36f2bfcd812a

    Hmm. A gravitational force exists because of a field. The earth's field is distorted by the moon's. Far away from the earth-moon...

  30. #Threads

    Gravity account

    What does gravity mean to an engineer? They have to make sure all materials will withstand "the force" of gravity that pulls...

  31. #Threads

    b4a2df22-b51c-40e3-a626-480dd7a1218e

    Factorial 0 is 1. Then there is some argument about 0[sup]0[/sup]. Zero is a quotient group in the integers as Z/nZ, n...

  32. #Threads

    Languages, theories, and a theory of languages

    Language is the medium of theory; although we "react" unconsciously to a lot of "theoretical" information, most of it is discarded (from...

  33. #Threads

    Hysteresis model

    Who can guess what this resembles? Is there a "word" in a general (or special) group, which is normal to an hysteresis...

  34. #Threads

    e25e9ada-bf83-4149-b4fc-6dce194e6cbb

    There are a lot of memonics "buried" in these things; apart from building patterns and finding words that preserve them there is...

  35. #Threads

    85166d0d-09dd-4961-936b-0472cc7bc793

    Ah, you see, any letter in the basic alphabet is a number in 4 places, as mentioned. In fact, each "X" an...

  36. #Threads

    c528b636-d97b-4061-a563-b0146ad29643

    Now suppose I want to think about "heat and temperature". There is an obvious "work function" which is rotation of any face,...

  37. #Threads

    30baebf5-28a0-4f8a-a76f-5b92b777bbfa

    Hmm. The title "Turing numbers and geometry" implies a connection between the two subjects. This connection is to the numbers in the...

  38. #Threads

    eb39a4d0-c14d-454c-b1ac-0e71f8cc5acc

    I'm trying to parameterize the space (of stacks of cubes). Obviously the N[sup]3[/sup] geometric parameter, when N = 2 is the number...

  39. #Threads

    cf192ab2-65cd-4f1f-96c2-68f8f607ef38

    There might be a problem or two with the above formulations; the reason 8!3[sup]7[/sup] is divided by 24 is that the 2-cube...

  40. #Threads

    dbdbfdc0-4eac-4bd8-a3a6-6cf97bf22a14

    What is a Turing number? Well, Alan Turing picked up a sheet of paper one day and had a think about what...

  41. #Threads

    Turing numbers and geometry

    Here's some more stuff on the group of cube puzzles: Stacking cubes together is where Erno Rubik started with his eventual design...

  42. #Threads

    f1a9abee-4504-407d-901c-f6833ab45863

    My synth's keyboard is really clunky. I've thought about using some kind of filler in the big gap above the keys (in...

  43. #Threads

    Pressure in liquids

    There were some queries a while back about liquids and the Venturi effect; why pressure is lower when a fluid is compressed...

  44. #Threads

    96c9d0cd-afcd-4250-ad2f-f5be0dd7051c

    Questions: 1) Why was the particular set of puzzles - corresponding to sliced and sectioned Platonic solids, the cube, the dodecahedron, the...

  45. #Threads

    77b57e6c-1146-4390-8b68-2bafd081f89c

    Symmetry: The mechanism of each individual face is a rotor r, which is 'sign-extended' because a conjugation (i.e. a number of places)...

  46. #Threads

    5c041808-e88d-4c41-86df-ced41b03c542

    Here is where I would like to directly connect the algorithmic side of the puzzles in play, to digital computers that use...

  47. #Threads

    1324bb14-b47d-49c5-a13d-2b3039ec781b

    I could keep this up for a while; but I can recommend that interested parties use google and try terms like "rubik's...

  48. #Threads

    eb64a8ef-4e80-4787-8603-ff420d179ec1

    Can you explain what the "*" operator does? Usually this is used to signify conjugation, or multiplication.

  49. #Threads

    fe782a1b-f7e7-4cef-8eaa-7219cd2ee055

    Correction: there are 4 places for the digits, r[sup]1[/sup]r[sup]2[/sup]r[sup]3[/sup]r[sup]4[/sup]. But the last digit = r[sup]0[/sup] = 1, the multiplicative...

  50. #Threads

    ca19d67f-7a8c-4ffb-a990-5dc3ea16cfa2

    Now I have several sequences in hand for the cube groups. The questions in Rubik's permutation puzzles are along the lines: "how...

  51. #Threads

    ed91607e-92dd-47ca-a4e0-294062c5e4ee

    Uh hm. So, if you get your hands on a couple of cube puzzles you can do the "twist" move that builds...

  52. #Threads

    2e3a546d-36ea-4ae2-8601-3d2df67f91ba

    I once agonized over which path to take in the CS domain. But here's the thing: if you have good programming skills...

  53. #Threads

    39334a06-67fc-431a-bd3c-ad3ec5cabfc9

    Another thing I could mention: the generators I've listed are a way to solve a scrambled cube. The "trivial step" in reconstructing...

  54. #Threads

    3e0f07a4-599d-4a25-9a89-6a5a3249411c

    Well, it would take a long time to enumerate all the 4.3 quintillion possible permutations of the 3x3x3 Rubik's cube; however calculating...

  55. #Threads

    8feb349b-387a-4bb9-ae78-b1324446798a

    I should add to this that I did a postgrad in parallel computation, in which an assignment was to design and implement...

  56. #Threads

    75daaa77-e127-4d34-bfba-61870562be07

    Well, thanks to Cube Explorer I now know the length of the "word" that corresponds to my stack-generator: R'FDR' which I label...

  57. #Threads

    9f2b3128-27f1-444c-9a7b-6c27b5352c18

    From wikipedia's <a href="https://en.wikipedia.org/wiki/Clos_network" target="_blank" rel="nofollow noopener noreferrer">Clos Network</a> on Clos switching nets...

  58. #Threads

    e6d6b5eb-db39-4e84-9e8a-bab9f2042e74

    I should be more specific with the term "handle"; I mean by this that a given switching network can switch an input...

  59. #Threads

    d36fd796-df1f-4deb-acbf-8723d99e5a15

    Switching theory: The Rubik's cubes are all made so you can rotate any face, clockwise or anticlockwise. This is equivalent to inverting...

  60. #Threads

    3221f8c4-3a3d-4a12-af70-c1c75dc3ce5f

    Some group theory: The set that generates the first step - of which R'FDR' is a member is a g which is...

  61. #Threads

    Exact sequence question

    This is actually something you can puzzle out on a Rubik's cube, starting with the 2x2x2, although a 3x3x3 is better because...

  62. #Threads

    01d8cd8d-1ccd-4e88-824e-da245842dab1

    Can I ask what led you to guess it was length of English words, just a hunch? Actually when you think about...

  63. #Threads

    a8806c8e-fb73-408c-b587-fbaf0fe9c20f

    Have you looked at GAP or Matlab programs for Golay codes?

  64. #Threads

    57e918d1-a381-42d6-883f-75e41e9415e1

    uh huh. How do you have any idea that you can try English words, and the numbers are the numbers of letters?...

  65. #Threads

    dac37125-91af-4edf-8b1d-3f0b44a2f479

    1,13,2 1,5,3,2 1,4,4,7,3 1,5,3,5,?,? Write it in binary: 1,1101,10 1,101,11,10 1,100,100,111,11 1,101,11,101,?? Rewrite as sums of powers of 2: 0,3+2+0,1 0,2+...

  66. #Threads

    8b5340dc-8535-41a1-9c56-babef717aeb9

    This is 1st year calculus. To calculate a solid of revolution first define the "y" curve that will be revolved around the...

  67. #Threads

    9fda0461-82c0-42b2-aa92-9144961f5487

    Look at subgroups starting with 1: 1,13,2 1,5,3,2 1,4,4,7,3 1,5,3,5,?,?

  68. #Threads

    e93a6d7b-702c-459f-955f-642851f5bc0f

    It's called a bipolar device because there are two kinds of differently polarized material elements in the device. A bipolar transistor has...

  69. #Threads

    1db740a7-69e3-487f-89c6-3aa0ee192c53

    Here's the algebraic part: each half of the R' figure is a product of a triangle and a rectangle. There is a...

  70. #Threads

    2992d617-2853-4755-a0f2-dc729da037b7

    Right, if you look closely at the colored triangles, you can see where the thick black line on the right side of...

  71. #Threads

    5d5c8506-f20f-41e8-b03d-d207a79d583a

    I gave up using Microsoft OS, and gave up trying to use it for internet access. It's still the only game in...

  72. #Threads

    a595725b-5c1d-4b44-8f97-288f4bf0dd90

    Here you can see where the extra unit is; rearranging the triangles (which appear to be similar, but aren't) makes the unit...

  73. #Threads

    PM messaging

    I had a recent PM from durga about a survey; I cannot reply to this poster they have their inbox set to...

  74. #Threads

    4c02c158-a1c3-4568-80ba-2c5c79247476

    OK I've been and made a fool of myself at another site, and so the outcome is that you can't make an...

  75. #Threads

    df9b3450-cba2-493e-a985-ddd73db490ba

    I found this, which shows the illusion up close. I should add I've been a bad robot; you can't really do this...

  76. #Threads

    b6b2cac8-63d2-4009-be03-270ff09e8b00

    This extra square "function" kind of does your head in. You start with a square (which can be a unit square) and...

  77. #Threads

    e8626f9d-afec-445f-8a1e-98cb4378a86d

    The 13*5 factor is the key, yes. You first make a cut straight across the square at a height of 5". Then...

  78. #Threads

    Squares puzzle

    A square of paper is 8 by 8 inches. Section the square so that the sections can be reassembled into a rectangle...

  79. #Threads

    b784dc61-a3d8-4fe7-aae9-2468f882ac1f

    "Array" is a very general term for a lot of things, from a switching circuit to a solar system.

  80. #Threads

    39c35a9d-36b6-442c-b74b-0703376c7e20

    I'm not sure if I'm going the right way, or if it is a valid model but here goes anyway. Triangles with...

  81. #Threads

    311b60b7-0ae0-49a1-93bb-b04820cf4db3

    If anyone is still following this "quiz", the connections to graph theory, complexity and spatial reasoning are these: anyone who resolves a...

  82. #Threads

    999dc808-f50d-4712-9886-c2766b9ce5fe

    I like writing poetry; I like it most when I can come up with something "weird' that appears to correspond to reality...

  83. #Threads

    f75fa8cc-44f8-42a5-bba7-f85f7acd9579

    Gyroscopic motion is angular momentum; since a body can have momentum and not have linear motion, gyroscopes "store" momentum (energy). This is...

  84. #Threads

    ed5c16da-580e-4642-8704-c81c4f63a2a3

    To bring this idea of a kind of musical notation in the cube group* like notes on a keyboard, into a little...

  85. #Threads

    51b73e47-5caa-4a3d-8c98-d5e715661099

    Hmm. The original question was about thinking out the difference between the number of rotations for a single slice of a cube,...

  86. #Threads

    Music and recursive descent

    I've been trying to understand the concept of "geometric algebra" for a while. This discipline was developed by Clifford, hence the alternate...

  87. #Threads

    0fdd0308-7406-4d04-a1d7-b151126577aa

    Guys, I think the riddle is: "why is music - on a violin, or a piano or guitar - and general relativity...

  88. #Threads

    01d63e4a-2f6a-4893-9241-829d7b4b0769

    Now I need to know if I can make a triangle that has interchangeable edges and vertices (I can swap the vertices...

  89. #Threads

    2658d6b7-e8fe-4981-b517-227b8966011b

    Capacitance and inductance are inverses, but with different integrals in VI. Think about how work is done transporting a charge, as current....

  90. #Threads

    403a0f9d-a64a-4af3-97df-3acd9b142161

    Next clue: assume the "P-cube" is isomorphic to the open ball B(r) on the real line R. Prove this is true by...

  91. #Threads

    Spatial reasoning quiz

    The Pocket Cube has 6 faces each with two slices through them, "into plane"; each slice divides the cube in half. If...

  92. #Threads

    a3c2a47a-2055-467b-9485-226c0b972f29

    If it's a security lock, maybe the optical coupler is the switch that's opened when you go through? So the alarm goes...

  93. #Threads

    06eda18b-0ce9-4be8-85f5-c017b41a6018

    Oh man, this is getting complex; the two series (f and g) are generator groups. Group theory (or symmetry groups) is, like,...

  94. #Threads

    ba20fda7-5bad-4250-920b-838863ea755a

    What the chart from the wiki page shows is the distribution of the two functions in Q, the "total space", which is...

  95. #Threads

    e1b88df3-e427-4285-8207-9726698b6eb0

    This is really about symmetry groups - i saw I need to do a spot of group theory; I wouldn't pass a...

  96. #Threads

    d5ca2160-2409-40fd-91c9-d6c0b3ca93ab

    Big_K, have you played with Rubik's puzzles, or those Chinese cube puzzles? I first solved a 3x3x3 a long time ago and...

  97. #Threads

    428d66ef-110d-411c-9fc0-afd6ad8fe09e

    So, yadayada; I have, and so does anyone who can buy these puzzles, an algebraic phase-space, of which the above map is...

  98. #Threads

    a8872122-9999-4e4f-bcc1-1c6f4151c830

    Dang, I doubled the cube. It's a V8, the shaft has three subshafts; it outputs a "power distribution", which has the greatest...

  99. #Threads

    d029fdd8-49fe-4b87-8ce1-12bfc8f11135

    Just to keep everyone up to date: I've realized that "numbers" when it comes to numbered (or colored, or "shaped") puzzles, are...

  100. #Threads

    5785e960-13d9-49eb-aacc-66a817c9063f

    Note (ii): this enumeration of ALL states in the Pocket (2-slice) cube with 6 colors, would be possible if you purchased about...

  101. #Threads

    a8ad6766-c510-4077-bbd6-0faef938ec28

    ..doubled up post

  102. #Threads

    f41083e8-49eb-4942-bf71-c389a45ebbb2

    The question is really asking about what we can classify as music. For instance "a sound library" can mean various things; "sampling"...

  103. #Threads

    70fb272e-abf3-47ce-ab3a-549e4788facd

    Right, I have a better picture of this whole puzzle thing now. We can do these puzzles - i.e. solve a scrambled...

  104. #Threads

    a568e50b-f961-40b6-ae87-8e4343f2f7a2

    Ok, so this extreme is beyond q[sub]14[/sub] in the quotient space. This is isomorphic to a path with 14 connections in it...

  105. #Threads

    29d0cb71-e9bc-4c12-a051-a0591e71fc4e

    Ah cha, suppose we place q[sub]15[/sub] at infinity since 0 states are generated beyond q[sub]15[/sub]; which I will label the edge or...

  106. #Threads

    06ccc801-98b3-45a5-9b55-095ff179b19c

    Now, the Indian hero Ramunajan turns up, with his factorization of pi - the ratio of a circle to its radius. Interestingly...

  107. #Threads

    ab942cdd-6657-495c-ae28-a5c155d7e722

    N is the total space of states, in the "manifold". It's a thing you can fold together (by rotating corners in SO(3)...

  108. #Threads

    001b0cee-3b10-4b24-b531-ceba8cf6021e

    OK; I'm actually looking at the Rubik's cube (group), for the 2x2x2 "Pocket Cube" puzzle. The number of symmetry groups in the...

  109. #Threads

    85e23e94-63ab-44fb-b05c-6c973adfa409

    It's a problem of "least and most" in terms of magnitude. This is what Riemann was using as an abstraction of distance...

  110. #Threads

    f935dbb7-3cda-4a38-ab5c-ba7e2c490463

    Phase is generally the difference between two waves - of any kind. In electrical systems the phase is (of) AC; this is...

  111. #Threads

    92184d00-7e26-4613-b45c-3afe48f9c313

    Here's some more clues: The list or series is bidirectional; the 'integers' are as noted, actually the number of states (eigenstates) in...

  112. #Threads

    d11d06c2-b271-4099-ab9a-95b34ef13a11

    First obvious point, the formula for N can be reduced to (K-1)!.D[sup]6[/sup], eliminating the denominator. This can be rewritten: (K-1)!.D[sup](K-2)[/sup]. Sec...

  113. #Threads

    Tough algebraic sequence of integers

    I've been working on a certain problem for some time, trying to decompose a series (I have the range of the function),...

  114. #Threads

    0f51cf06-8202-4218-9109-3d118a66c5b3

    It's actually the same thing as in set theory. You map two or more structures (abstract) to the same physical values -...

  115. #Threads

    551baab3-66a1-4fe5-8fb3-b935652eeccf

    Order notation is an approximation of the amount of time it will take, for an algorithm to process some input. Approximate because...

  116. #Threads

    64f71aa9-0907-43c3-87ab-2eeab67fd49d

    Well, there is no such thing for starters; I would say it's a term used to mean the point of failure for...

  117. #Threads

    c95977e9-f01e-4cc0-b024-918e82ede089

    <a href="https://en.wikipedia.org/wiki/Truss" target="_blank" rel="nofollow noopener noreferrer">Truss</a> might be a starting point...

  118. #Threads

    67c28746-5d86-40b4-b2e6-7be5fa9f0635

    Well, it's really about a way to connect certain concepts together, and understand tensor calculus at the same time. What does an...

  119. #Threads

    9e57d904-dfa2-428b-be83-6bb806ac945a

    I would say it means the stress limit, for safety limit of the construction. Do the requirements mean that a 20mm section...

  120. #Threads

    b6744413-eced-4c5d-8ec0-0bfd4d6ba641

    If you mean a unix/linux kernel or embedded kernel, it's a copy of all the code & data an OS uses to...

  121. #Threads

    44cfffc9-57a4-4e67-b2a4-94b0411e488e

    As others have pointed out an ideal gas is isothermal (is an isotropic medium). An ideal gas can be compressed without heating,...

  122. #Threads

    64ab0eb9-87d0-4104-a672-be158c89fd6e

    That eqn is for a beam with uniform stiffness/elasticity. The PDE version is more general. Are you familiar with the various methods...

  123. #Threads

    c9f9f62e-dd47-40f7-9681-a86fac5b4832

    Have you looked at the differential solutions that correspond to Bernoulli-Euler equations? Can you extrapolate on the double integral formula you're looking...

  124. #Threads

    078cb6f2-100b-45df-a4c2-fc5062a820de

    I think I can explain why pressure decreases in fluid flow. If you force a liquid through an aperture it has to...

  125. #Threads

    7f0f2524-c647-4f6c-aeb1-d2f071103c34

    Another tip: use light or extra light gauge strings, and lower the string height if you can by adjusting the bridge. The...

  126. #Threads

    e69ee23b-5000-4161-9d8d-6a095239b6e8

    You can convert kinetic energy into electrical energy, as mentioned with turbines (hydraulic, aerodynamic) but only to a limit of efficiency. When...

  127. #Threads

    6afc1a85-1dc2-490a-9e51-c3d688a1af35

    Try this: A gas is "ruled" by the gas law PV = nRT. This relates pressure-volume to a density-temperature product (a compression/expansion...

  128. #Threads

    32740ec1-f6d6-49f8-a06d-d4fcf1459fa0

    Note that, numbers are dimensionless, but also "dimension-ful", in the sense they are "capacitive". The reflection of this capacity is obvious when...

  129. #Threads

    d3b5a8b5-9606-4c98-a1da-0fe745552aa3

    Ahem; there are several ways to approach this. One is to get a good engineering calc, like a HP say, and download...

  130. #Threads

    71d0966f-d812-40db-a1ca-43f1e830e3a3

    After a think about all the confusing language, I suppose a simple way to visualise the pressure and density thing, is as...

  131. #Threads

    7d585fe2-3478-4c1f-a18c-9363f6cb896e

    Well, I've tried; you appear to be disagreeing in some respects, and agreeing in others. As you say there's a distribution of...

  132. #Threads

    406b9c7e-117a-4965-b4b6-361d650bb56a

    I was (probably still am) a big fan of Total War, after I purchased the original Medieval (TW orig.) and found out...

  133. #Threads

    588a30aa-c46f-4cd1-a8c7-106dd697307f

    Rohan_sKThe Velocity of flow and the pressure are two seperate parameters. And the fluids pressure cannot remain constant during a varying diameter...

  134. #Threads

    e94cd87e-62f4-446f-8271-fac917277741

    The expansion or Flexibility of the container has got nothing to do with the Normal Reaction. Thre Reaction would still remain the...

  135. #Threads

    5e5ea2b2-0279-4df7-a63c-d70947049648

    Yup; set up a data type with 3 elements, two are addresses and the third is data (arbitrarily sized). You can now...

  136. #Threads

    595b1b68-dab1-4091-8d21-d9b38dab6902

    Rohan@ Skipper : In the first place Thank you for responding to the question and commenting on it. There are certain things...

  137. #Threads

    f5b12d5e-3d38-4028-9f61-332f2a0f643a

    It's a mechanical problem. The pressure and volume are restricted by the diameter of the channel; there's a nearly constant cross-section, for...

  138. #Threads

    111b102d-bda8-4b11-9b9d-546ddc5ee0a6

    I think physics teachers and lecturers should talk more about how the idea of a force is tied to the idea of...

  139. #Threads

    05277226-7733-40e6-8ea8-4563abf0a1a6

    Sorry for being too abstract, I can make it a little more straightforward: logic arrays you can program are like having a...

  140. #Threads

    34762bdd-cb66-4ede-b94f-2a5cec99225d

    Ok here goes: if I stay with tectonics, then I can model earthquakes as the edges (on the Brain Racker) sliding past...

  141. #Threads

    11ca1528-0b02-40ab-8734-0cb1afbb4dc2

    I like to start with the most abstract level of description possible, when it comes to design. If you know about spectral...

  142. #Threads

    fb5ae829-40ce-4535-afd5-a3f7ad0db0c0

    I'm running out of steam a little here; I'd like to point out that 2 years ago I had an encounter of...

  143. #Threads

    76012ee8-7204-48ca-bea5-56c417e8cc36

    Alright, I'm going to try modeling a flow-relation of some kind for the "toy" devices I have. Now I know I can...

  144. #Threads

    e3ea26ad-9108-4a21-aec3-27b7e926615f

    Ok, so I have my collection of "devices", including a computer that can solve arbitrary algebraic equations (across an extended alphabet of...

  145. #Threads

    5bd5941c-6af1-43bc-9bbe-6008233002d5

    I recommend the following literature (if you can find it): AT&T Unix User's Guide, Programmer's Manual, and Commands (1979). It has a...

  146. #Threads

    7f25a147-ecb6-437d-b9fe-7697ea098bb7

    Linux and (previous) small distros like it which are all Unix-clones, have been a very big deal in comms, routers and firewalls...

  147. #Threads

    11411d61-6607-451e-8397-b54fd8aab8e8

    The container will resonate with or without gas in it. You might want to determine as much as possible about the response...

  148. #Threads

    1fa3972a-cf6a-44c6-95a7-7ebfd8f52969

    Hm. What sort of resonance do you mean? What do you intend to use to make the gas "resonate"? Note: there are...

  149. #Threads

    851f638a-aa83-4aee-a7ab-b9aeecad5435

    I still haven't done a lot with the abstract spaces represented by Rubik's cubes and the "Brain Racker" which is an interesting...

  150. #Threads

    61319ded-3eea-4fc4-9fd0-ac50dabd0330

    Now to try tying all this together, since I've done a bit of a tour. My backyard device generates "inertial motion", under...