damathacus

Congratulatory remarks, all. Of course, I've won the only category that really matters.

Had game two against kamoh. ;Title: Yahoo! Chess Game ;White: metzgerism ;Black: damathacus ;Date: Wed Dec 27 06:23:01 GMT 2006 1. g1-f3 d7-d5 2. d2-d4 c8-g4 3. h2-h3 g4xf3 4. e2xf3 c7-c5 5. d4xc5 e7-e5 6. f1-b5+ b8-c6 7. f3-f4 e5-e4 8. f4-f5 f8xc5 9. o-o g8-f6 10. c1-e3 c5xe3 11. f2xe3 o-o 12. c2-c4 d5-d4 13. e3xd4 d8xd4+ 14. d1xd4 c6xd4 15. b1-a3 a7-a6 16. b5-a4 d4-e2+ 17. g1-f2 e2-d4 18. f1-d1 d4xf5 19. c4-c5 a8-d8 20. d1xd8 f8xd8 21. g2-g4 f5-h4 22. a4-b3 g7-g5 23. a1-d1 d8xd1 24. b3xd1 g8-g7 25. b2-b4 g7-g6 26. d1-c2 h7-h5 27. g4xh5+ g6xh5 28. c2-d1+ h5-g6 29. b4-b5 a6xb5 30. a3xb5 f6-d7 31. b5-d6 d7xc5 32. d1-c2 f7-f5 33. a2-a4 g6-f6 34. d6-e8+ f6-e5 35. a4-a5 f5-f4 36. e8-c7 e4-e3+ 37. f2-e2 h4-f5 38. c2xf5 e5xf5 39. c7-e8 f5-e4 40. e8-d6+ e4-d4 41. d6-f5+ d4-e4 42. h3-h4 f4-f3+ 43. e2-f1 g5xh4 44. f5xh4 e3-e2+ 45. f1-f2 c5-d3+ 46. f2-g3 e2-e1+ 47. g3-h3 d3-f2+ 48. h3-g3 e1-g1+ 49. h4-g2 g1xg2+ 50. g3-h4 g2-g4++ He forewent finishing game one, where he would have been playing for the draw, so the score is 2-0 for me and I advance to play . . . someone else. But not today. Or tomorrow.

Pfft. I'm not falling for that. We all know you're a good Christian boy. I on the other hand do have a lady to entertain tomorrow night, and by entertain, I mean removal of clothing is intended. So, yeah. I can't play tomorrow at all. Kamoh where are you? I'm online and ready. Damn you, spoiling all my fun! But it would mean that I'd be out of commission because I'd be spending time with close friends. It does sound like your holiday season is better than mine, on the whole. I'm working every day this week, and what's more, I have to, because I'm in hock with Visa over all my Xmas shopping. It'll be nice to graduate and stop spending 80% of my time on something that not only doesn't pay me, but costs me a substantial amount of money. The life of a poor student. Prolonged adolescence. Meh.

Pfft. I'm not falling for that. We all know you're a good Christian boy. I on the other hand do have a lady to entertain tomorrow night, and by entertain, I mean removal of clothing is intended. So, yeah. I can't play tomorrow at all. Kamoh where are you? I'm online and ready.

Status update: Nothing new to report.

Man, okay. Sign me up. But I'm gonna be busy the next three or four days. It's crunch time for me.

I won my games against Snerrak. I'm done now.

It was never eppy, formidable though he may be. Eppy, if anything, is our chosen hero. The one that came along and improved, eventually to give the titans a run for their money. When he first started, he was simply very, very good.

2-0 for Margoute. She beat me soundly the first game and I forfeited the second. Good luck in the tournament everyone. Personally, I'm glad for the break.

If the metal is left in there until equilibrium is reached, the metal and water will eventually be the same temperature. In other words, you set up two equations, one for the metal with the initial temperature at 30, and the final temperature being what you want to calculate, and the water with an initial temperature at 100, and the final temperature being the same value. You can manipulate the equations so that you are trying to calculate the final temperature for each, then set them equal to each other. I'm guessing the only unknown in the equation will be the change in heat energy on each side. Since the energy will be lost in one equation and gained on the other, you probably will be able to move them both to the same side of the equation and end up with 2 times the unknown energy, divide both sides by two, and sort out what the heat transfer is from the masses of metal and water and the specific heats and initial temperatures of both substances. I'm doing this without actually seeing the equations in front of me, but I'm betting that's it. There could also potentially be a twist. If the water is boiling, some of the water in an enclosed beaker could potentially be steam. Steam at the same temperature as water has higher thermal energy, because energy is required to make a phase change from liquid to gas state. In that case you'd have to take into account the proportion of water that is steam and add that energy in to your equation. If there's steam in the beaker, it can't transfer to the piece of metal. If the steam isn't in contact with the metal, there's no means for a heat transfer to occur. If the metal was half submerged, you would have to worry about it. If the system is closed, the steam-water mixture will have to turn fully to water before the heat transfer to the metal will allow the temperature to start decreasing. If the problem is one of equilibrium, you can't end up with non-boiling water and steam in the same closed system at equilibrium. The original poster was nowhere near specific enough on the terms of the question to settle exactly what we are trying to solve and under what conditions, however. Details are important in physics. You can't half-tell someone about a question and don't tell them all your information or the actual wording of what is being asked and expect to get a single, straightforward answer. Maybe it's heat transferred after a period of time, in which case you were probably on the right track, maybe it's heat transfer after equilibrium has been reached, in which case I was probably on the right track. Original poster, are you following this, or what?

If the metal is left in there until equilibrium is reached, the metal and water will eventually be the same temperature. In other words, you set up two equations, one for the metal with the initial temperature at 30, and the final temperature being what you want to calculate, and the water with an initial temperature at 100, and the final temperature being the same value. You can manipulate the equations so that you are trying to calculate the final temperature for each, then set them equal to each other. I'm guessing the only unknown in the equation will be the change in heat energy on each side. Since the energy will be lost in one equation and gained on the other, you probably will be able to move them both to the same side of the equation and end up with 2 times the unknown energy, divide both sides by two, and sort out what the heat transfer is from the masses of metal and water and the specific heats and initial temperatures of both substances. I'm doing this without actually seeing the equations in front of me, but I'm betting that's it. There could also potentially be a twist. If the water is boiling, some of the water in an enclosed beaker could potentially be steam. Steam at the same temperature as water has higher thermal energy, because energy is required to make a phase change from liquid to gas state. In that case you'd have to take into account the proportion of water that is steam and add that energy in to your equation.

I think you're onto something there. You could also pre-fold the lower half of the cone so that it would be more pre-disposed to crumple, depending on how stiff the material was to begin with. Given that it's computer paper, that may not be necessary, but since there are several sheets, maybe it would be. We don't want the cone to stop dead and the egg to crack while trying to keep moving and squeeze through the tapering tunnel. The crumpling is crucial. Or even better, stuff the bottom of the cone with paper. But if you use a cone, the egg will only be able to fall so far before it'll be squeezed too much. If you put the egg higher up, the centre of mass will likely cause the cone to flip over upside down. For that reason, I prefer the crumple-zone idea. You make better use of the full stopping distance.

I think you're onto something there. You could also pre-fold the lower half of the cone so that it would be more pre-disposed to crumple, depending on how stiff the material was to begin with. Given that it's computer paper, that may not be necessary, but since there are several sheets, maybe it would be. We don't want the cone to stop dead and the egg to crack while trying to keep moving and squeeze through the tapering tunnel. The crumpling is crucial.

There's a future lawyer, but not an engineer or physicist. Re: the parachute. I've never done this or seen it done, although of course I've heard of the infamous egg-drop before. I was thinking ahead to the drop off the gym bleachers. It seems that the parachute ought to slow it down a little, but more important is assuring that the contraption lands right-side-up when you drop it from a greater height. Otherwise you have to account for the possibility of impact occuring from any side, and with the limited materials, that makes this a major challenge. How would you do it Bahamut?

To prevent the egg from breaking, you want to reduce the amount of force it experiences on impact. When the egg reaches the ground, it is going to stop, one way or another, and if it is stopped suddenly, by a large force, it will probably break in the process. There are two ways to do this: Firstly, you can minimize the force necessary to stop the egg in the first place, by counteracting the accelerating force of gravity during the entire descent, i.e., a parachute. Secondly, you can counteract the acceleration of the egg upon reaching the ground by applying a smaller force over a longer period of time, i.e., a cushioning effect. The momentum and energy the egg will gain from falling a particular distance will be the same, but rather than stopping the egg in a very short time with a large force, you can provide the same impulse and counteract the same momentum with a longer time spent decelerating and a smaller force applied over that time. That's the difference between punching a pillow and punching a brick wall. The pillow gives, it lets your fist sink into it and decelerate at a lesser rate, rather than a brick wall that stops your fast in a fraction of a second with a much larger reactive force. If you combine both of these ideas, you can not only slow the descent, but control it, as a parachute should assure that your contraption lands bottom-side down. If you can control which way your egg contraption will land, then you can place your egg at the top, and allow it to pass through several crash sheets of paper before hitting the ground. I might try something like a long tube of paper, suspended from a paper parachute, with the egg taped to the top of the tube and shredded paper filling the tube to the brim. A tube just wide enough to fit the egg will provide additional resistance to slow it, besides making the most effective use of your limited materials, and if the tape is strong enough to suspend the tube while the whole apparatus is falling with a somewhat slowed descent, then it shouldn't break free from the tape until you actually hit ground, and at this point, the egg can slide into the tube and into all the shredded paper (I'm thinking anywhere from half a metre to a metre long), which ought to be enough to slow it down without braeking it from any height.

Margo and I haven't played yet. She's been too busy giving me life advice. We'll play soon.

I had my two optionals against Keegan. He was bloody efficient, to say the least. I wasn't expecting the games to be over that quickly. Two wins for him, and some ineffectual attempts at defending myself which he batted away like the blows of an infant.

Rainman and I played. First game we agreed to a draw. ;Title: Yahoo! Chess Game ;White: rainmanr2d2 ;Black: damathacus ;Date: Tue Nov 21 06:06:40 GMT 2006 1. d2-d4 d7-d5 2. c1-f4 c7-c5 3. c2-c3 b8-c6 4. e2-e3 e7-e6 5. f1-b5 f8-d6 6. f4xd6 d8xd6 7. g1-f3 c8-d7 8. f3-e5 c6xe5 9. d4xe5 d6xe5 10. b5xd7+ e8xd7 11. o-o g8-f6 12. b1-d2 d7-e7 13. a1-b1 h8-d8 14. d2-f3 e5-c7 15. d1-b3 d8-d7 16. c3-c4 d5-d4 17. e3xd4 c5xd4 18. b1-d1 a8-d8 19. f1-e1 d4-d3 20. f3-e5 d3-d2 21. e1-e2 d7-d4 22. b3-b4+ d8-d6 23. d1xd2 f6-d5 24. b4-a3 d4xd2 25. e2xd2 d5-f4 26. e5xf7 f4-e2+ 27. g1-f1 b7-b5 28. f1xe2 c7xc4+ 29. e2-e1 c4-e4+ 30. e1-d1 e4-b1+ 31. d1-e2 b1-e4+ Our second game Rainman made a hell of a comeback. No tricks, no really stupid mistakes on my part. His playing was simply amazing. It's a monster, but worth checking out. ;Title: Yahoo! Chess Game ;White: damathacus ;Black: rainmanr2d2 ;Date: Tue Nov 21 06:51:32 GMT 2006 1. d2-d4 d7-d5 2. c2-c4 c7-c5 3. d4xc5 d8-a5+ 4. b1-c3 a5xc5 5. d1xd5 c5-b4 6. d5-b5+ b8-c6 7. b5xb4 c6xb4 8. c3-b5 e8-d7 9. e1-d1 b7-b6 10. c1-f4 c8-a6 11. b5-c7 a8-d8 12. c7xa6 d7-e8+ 13. f4-d2 b4xa6 14. g1-f3 e7-e6 15. d1-c2 f8-b4 16. a1-d1 b4xd2 17. d1xd2 a6-b4+ 18. c2-b3 d8xd2 19. f3xd2 a7-a5 20. a2-a3 b4-c6 21. e2-e3 g8-f6 22. f2-f3 e8-e7 23. f1-d3 h8-d8 24. b3-c3 h7-h5 25. h1-d1 c6-e5 26. d2-b3 h5-h4 27. b3-d4 f6-d7 28. f3-f4 e5xd3 29. d4-c6+ e7-e8 30. c6xd8 e8xd8 31. d1xd3 d8-c7 32. g2-g3 h4-h3 33. e3-e4 e6-e5 34. b2-b4 a5xb4+ 35. a3xb4 g7-g6 36. d3-d5 e5xf4 37. g3xf4 d7-f6 38. d5-d4 f6-g4 39. d4-d3 g4-f2 40. d3-d4 f2-g4 41. c4-c5 b6xc5 42. d4-c4 g4xh2 43. c4xc5+ c7-b6 44. c5-a5 h2-g4 45. f4-f5 h3-h2 46. a5-a1 g4-f2 47. f5xg6 f7xg6 48. e4-e5 h2-h1 49. a1xh1 f2xh1 50. e5-e6 b6-c6 51. c3-d4 c6-d6 52. b4-b5 h1-g3 53. b5-b6 g3-f5+ 54. d4-c4 d6-c6 55. b6-b7 c6xb7 56. c4-d5 b7-c7 57. d5-e5 f5-e7 58. e5-f6 c7-d6 59. f6-g5 d6xe6 60. g5-g4 e6-f6 61. g4-f4 g6-g5+ 62. f4-g4 f6-g6 63. g4-f3 g6-f5 64. f3-g3 g5-g4 65. g3-f2 f5-f4 66. f2-g2 g4-g3 67. g2-f1 f4-f3 68. f1-g1 g3-g2 69. g1-h2 f3-f2 70. h2-h3 g2-g1 71. h3-h2 e7-f5 72. h2-h3 f5-e3 73. h3-h2 g1-g8 74. h2-h3 g8-h8++ So, to summarize, dama vs. Rainman, one draw, one loss for me.

Kamoh, you still haven't recorded my wins against Setz.

Thanks for the reminder. I'm kinda bad about this stuff now That's gonna give you 36 pts. By the way, I have no idea how the points system works. What's everything worth?

Kamoh, don't forget.

Keegan took two wins from me. The second game was pretty good. Here it is. ;Title: Yahoo! Chess Game ;White: damathacus ;Black: keegan_the_fox ;Date: Thu Nov 16 02:52:21 GMT 2006 1. d2-d4 g8-f6 2. c2-c4 e7-e6 3. e2-e3 d7-d5 4. g1-f3 c8-d7 5. c4xd5 e6xd5 6. f1-d3 b8-c6 7. o-o f8-d6 8. d3-b5 a7-a6 9. b5xc6 d7xc6 10. b1-c3 o-o 11. f3-e5 c6-b5 12. c3xb5 a6xb5 13. d1-b3 c7-c5 14. b3xb5 d8-c7 15. c1-d2 f6-e4 16. d2-c3 e4xc3 17. b2xc3 a8-a5 18. b5-b3 c5-c4 19. b3-c2 f8-a8 20. f1-b1 b7-b5 21. b1-b2 d6-a3 22. b2-b1 a3-d6 23. f2-f3 f7-f6 24. e5-g4 h7-h5 25. g4-f2 d6xh2+ 26. g1-f1 c7-d7 27. e3-e4 f6-f5 28. e4xf5 h2-f4 29. b1-e1 b5-b4 30. c3xb4 a5-a3 31. e1-e6 d7-a7 32. e6-g6 g8-f7 33. c2-e2 a3-e3 34. e2-c2 a7xd4 35. a1-e1 e3xe1+ 36. f1xe1 d4-e5+ 37. c2-e2 f4-d2+ 38. e1-f1 e5xe2+ 39. f1xe2 a8xa2 40. e2-d1 d2xb4 41. g2-g4 a2xf2

Yeah, I know. And again, I'm sorry Bahamut for making you play a game that didn't count. I wasn't trying to have a second optional, I thought we were actually scheduled to play that week. I already had played the first game of my optional match against Greyfox at the time I played you. I'll pay more attention in the future.

John got two quick wins on me.

What? I don't follow. You're saying the optional match is supposed to be a single game? Edit: Oh, I see the problem. Bahamut wasn't my scheduled match for this week. John and Clef are. I knew I was playing two titans and I got them mixed up. Okay, well, I think we'll have to count my optionals against Greyfox and not the one against Bahamut, because I already played an optional against Bahamut last week. Sorry, I'll try to pay more attention in the future.