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If both engineers in the Great Heck train wreck (What the Heck, no article?! This can't be -- it's on the main page!) were killed in the collision, then how did Andrew Hill, the instructor who was riding in the cab of the freight train, manage to survive? 24.5.122.13 ( talk) 06:08, 28 February 2014 (UTC)
( edit conflict) Yes it's linked to the article, as Shantavira says above. I've just scanned through The track obstruction by a road vehicle and subsequent train collisions at Great Heck 28 February 2001: A report of the Health and Safety Executive investigation and although it states that the instructor survived (p. 30), it doesn't say why specifically. It does say "It [the freight locomotive] was heavily damaged on the front and right side, and below the cab in the vicinity of the missing right buffer, with part of the DVT [the passenger loco] embedded below the right front window. The interior of the leading cab was mainly intact, but all the windows were broken. The two drivers seats were undamaged and fixed to the floor. The survival space about the right-hand seat had been reduced below waist level" (p. 28). It goes on to say that "The exit for drivers from the locomotive cab is not easy. The driver has to move forward, around the control pedestal, before gaining access to the inward opening door in the rear wall of the cab. This opens into a cross passage that could be used as a refuge during a collision" (p. 29) It seems to me that the damage was all on the driver's side (the right) and the instructor on the left was saved by not being directly involved in the impact. An alternative is that the instructor got up and ran back into the "refuge", but I think that they would have mentioned this were it the case. Alansplodge ( talk) 20:31, 28 February 2014 (UTC)
This is not a request for medical advice, it's a request for information about something I'm curious about from personal observation. That said: at one point in time, I had an anxiety disorder, I've noticed that now, years later, various anxiety attack effects can sometimes trigger a small anxiety attack. For example, I'd feel cold and a bit shaky when I had an episode, if I go outside and there is an extreme temperature differential, I get cold and shaky, which sometimes makes me feel like I'm having an anxiety attack. The same thing can happen if I purposely hyperventilate. Etc. This is not a constant thing, and when it does trigger anything, it's relatively minor; I'd be curious if any research has ever been done on this, the mechanisms for it, etc. Thank you for any help:-) *And, again: I'm not looking for a diagnosis, cure, etc. I'm quite fine; just curious about how it all works under the hood. Phoenixia1177 ( talk) 10:54, 28 February 2014 (UTC)
We can answer medical questions, but we can't give medical advice. Looie496 ( talk) 14:45, 1 March 2014 (UTC) |
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The following discussion has been closed. Please do not modify it. |
This type of generalisation of symptomology is common in anxiety problems. Your reaction to the sensation of shivering is recalling a time when such shivering was a part of panic/anxiety. This is a learned behaviour and will take some time to unlearn. Recognise what is happening and allow yourself to feel the reaction while keeping calm. Self-analysis of your reaction sometimes helps. If however the reaction triggers real panic it may be advisable to seek some support with a professional. Think clearly about what occurs, try to acknowledge to yourself that it is a memory of anxiety not actual anxiety. After encountering the stimulus several time without getting badly anxious the stimulus should stop being so worrying. Try looking for reports on controlled breathing and positive visualisation to provide techniques to sooth anxiety reactions. shad darra---- — Preceding unsigned comment added by Shaddarra ( talk • contribs) 05:27 1 Mar 2014 |
I would like to use a sump pump to drain water off my sidewalk where it accumulates during snow melt. However, it doesn't seem to work unless I have several inches of water there. It sucks in air instead. So I have to find other ways to clear the water. I know that digging a pit off the edge of the sidewalk on the lowest spot and putting the sump pump down there would work, but is there any way to get one to work short of excavations ? Do they make any designed for this situation ? StuRat ( talk) 14:45, 28 February 2014 (UTC)
The sidewalk has several low spots, and I'd like to be able to pump water out of those before it freezes into ice. I suppose I could dig several trenches, one by each low spot, and put a sump pump into each, but that doesn't seem very practical. Same with connecting the various low spots with a long trench. The low spots all tend to be at seams between slabs of cement, so there is a "micro-trench" between each seam, and a small enough tube sucking in water slowly enough might work there, although it would take hours at that rate, especially if more melt-water was pouring in.
So far I've just been pouring salt on the ice when it forms, but that kills the adjacent plants. StuRat ( talk) 23:24, 1 March 2014 (UTC)
Why are used needles such a large risk for HIV if the only method of transmission, during sexual activity is direct contact between blood, Semen or vaginal fluid or a mucous membrane. Surely the risk is lower for needles as the virus is unlikely to have survived on it. — Preceding unsigned comment added by 94.13.141.182 ( talk • contribs)
Science desk | ||
---|---|---|
< February 27 | << Jan | February | Mar >> | March 1 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
If both engineers in the Great Heck train wreck (What the Heck, no article?! This can't be -- it's on the main page!) were killed in the collision, then how did Andrew Hill, the instructor who was riding in the cab of the freight train, manage to survive? 24.5.122.13 ( talk) 06:08, 28 February 2014 (UTC)
( edit conflict) Yes it's linked to the article, as Shantavira says above. I've just scanned through The track obstruction by a road vehicle and subsequent train collisions at Great Heck 28 February 2001: A report of the Health and Safety Executive investigation and although it states that the instructor survived (p. 30), it doesn't say why specifically. It does say "It [the freight locomotive] was heavily damaged on the front and right side, and below the cab in the vicinity of the missing right buffer, with part of the DVT [the passenger loco] embedded below the right front window. The interior of the leading cab was mainly intact, but all the windows were broken. The two drivers seats were undamaged and fixed to the floor. The survival space about the right-hand seat had been reduced below waist level" (p. 28). It goes on to say that "The exit for drivers from the locomotive cab is not easy. The driver has to move forward, around the control pedestal, before gaining access to the inward opening door in the rear wall of the cab. This opens into a cross passage that could be used as a refuge during a collision" (p. 29) It seems to me that the damage was all on the driver's side (the right) and the instructor on the left was saved by not being directly involved in the impact. An alternative is that the instructor got up and ran back into the "refuge", but I think that they would have mentioned this were it the case. Alansplodge ( talk) 20:31, 28 February 2014 (UTC)
This is not a request for medical advice, it's a request for information about something I'm curious about from personal observation. That said: at one point in time, I had an anxiety disorder, I've noticed that now, years later, various anxiety attack effects can sometimes trigger a small anxiety attack. For example, I'd feel cold and a bit shaky when I had an episode, if I go outside and there is an extreme temperature differential, I get cold and shaky, which sometimes makes me feel like I'm having an anxiety attack. The same thing can happen if I purposely hyperventilate. Etc. This is not a constant thing, and when it does trigger anything, it's relatively minor; I'd be curious if any research has ever been done on this, the mechanisms for it, etc. Thank you for any help:-) *And, again: I'm not looking for a diagnosis, cure, etc. I'm quite fine; just curious about how it all works under the hood. Phoenixia1177 ( talk) 10:54, 28 February 2014 (UTC)
We can answer medical questions, but we can't give medical advice. Looie496 ( talk) 14:45, 1 March 2014 (UTC) |
---|
The following discussion has been closed. Please do not modify it. |
This type of generalisation of symptomology is common in anxiety problems. Your reaction to the sensation of shivering is recalling a time when such shivering was a part of panic/anxiety. This is a learned behaviour and will take some time to unlearn. Recognise what is happening and allow yourself to feel the reaction while keeping calm. Self-analysis of your reaction sometimes helps. If however the reaction triggers real panic it may be advisable to seek some support with a professional. Think clearly about what occurs, try to acknowledge to yourself that it is a memory of anxiety not actual anxiety. After encountering the stimulus several time without getting badly anxious the stimulus should stop being so worrying. Try looking for reports on controlled breathing and positive visualisation to provide techniques to sooth anxiety reactions. shad darra---- — Preceding unsigned comment added by Shaddarra ( talk • contribs) 05:27 1 Mar 2014 |
I would like to use a sump pump to drain water off my sidewalk where it accumulates during snow melt. However, it doesn't seem to work unless I have several inches of water there. It sucks in air instead. So I have to find other ways to clear the water. I know that digging a pit off the edge of the sidewalk on the lowest spot and putting the sump pump down there would work, but is there any way to get one to work short of excavations ? Do they make any designed for this situation ? StuRat ( talk) 14:45, 28 February 2014 (UTC)
The sidewalk has several low spots, and I'd like to be able to pump water out of those before it freezes into ice. I suppose I could dig several trenches, one by each low spot, and put a sump pump into each, but that doesn't seem very practical. Same with connecting the various low spots with a long trench. The low spots all tend to be at seams between slabs of cement, so there is a "micro-trench" between each seam, and a small enough tube sucking in water slowly enough might work there, although it would take hours at that rate, especially if more melt-water was pouring in.
So far I've just been pouring salt on the ice when it forms, but that kills the adjacent plants. StuRat ( talk) 23:24, 1 March 2014 (UTC)
Why are used needles such a large risk for HIV if the only method of transmission, during sexual activity is direct contact between blood, Semen or vaginal fluid or a mucous membrane. Surely the risk is lower for needles as the virus is unlikely to have survived on it. — Preceding unsigned comment added by 94.13.141.182 ( talk • contribs)