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On an episode of NCIS, it was mentioned that an old naval punishment involved feeding offending sailors only bread and water for a week, in order to plug up their gastrointestinal tracts. In real life, will such a diet really have the aforementioned consequences? 173.68.173.114 ( talk) 03:41, 25 June 2016 (UTC)
I studied the design of T-14 and I found a problem , the designers made an unmanned turret so they put the commander`s position in the front , but I imagined a scenario as this : the tank`s panoramic sight is disabled , the driver`s rear camera is disabled , the crew can`t see what`s behind them , do you consider this a big problem ? 94.249.115.70 ( talk) 10:39, 25 June 2016 (UTC)
So it`s an impractical tank as I supposed. 94.249.115.70 ( talk) 11:40, 25 June 2016 (UTC)
That`s it . 94.249.115.70 ( talk) 20:58, 25 June 2016 (UTC)
As they almost said in The Matrix, for this mission we're going to need drugs... lots of drugs. Or science, if you're into the hard stuff. Pass those red pills and buckle up, cause Kansas is going bye-bye!
From
"String Theory Co-Founder: Sub-Atomic Particles Are Evidence the Universe Was Created", CBS News:CNS News!
CBS refers me to a paper that I'm not getting in a readable form and this blog which makes its own curious claims like
But what is this stuff? I mean, how are "primitive semi-radius tachyons" defined, what does that even mean? What is the new technology from 2005? What the hell is taking off? And so on... Wnt ( talk) 14:42, 25 June 2016 (UTC)
Trying to get data to fill out the description for File:North Livingston Baptist Church.jpg, I found their Facebook page, which had a request for people to be tested for a bone marrow donation. Part of that statement says This drive was set up for Mason, a local boy with NEMO, which is even more rare than HLH. HLH I suppose is Hemophagocytic lymphohistiocytosis, but what could NEMO be? NEMO lists a lot of things that aren't relevant; I suppose it could be a reference to a problem with IKBKG, but that seems a bit of a stretch. Nyttend ( talk) 14:54, 25 June 2016 (UTC)
This discussion has been closed. Please do not modify it. |
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The following discussion has been closed. Please do not modify it. |
[The Supplement]
However, only in case of a physical system (called a newly semi or sub-closed system) that does allow certain types of transfers (such as transfer of mass and/or matter) inside the closed system,
There are the following justifiable reasons. In the first place, the law of momentum conservation has been implied by a principally action-reaction law as below. [The mainly existing definition of the Newton’s third law] ~When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.~ However, the above law should be reformed (revised) as follows because it isn't so easy to distinguish the action-reaction forces from the equilibrium of forces in the above fixed definition. ~When one body (A) exerts an action force on a second body (B),
And when A body’s action force interacts with B body’s action force, the equilibrium of forces between A & B are lost in case of (the initial) unbalanced momentums of the both bodies. But, each body receives a reaction force equivalent to the action force by its body from the other body.~ Note : The force (F or -F)’s reference value for an equation of momentum conservation in a collision of two bodies is chiefly based on a measure of one body’s action force (F) or reaction force (-F).
So, it is necessary to be careful of being in “uniform motion”, not “at rest” in the law of inertia for the united body in case of causing a perfectly inelastic collision by unbalanced action forces of the two bodies. As for the above important matter, even a main (hollow) body in the sub-closed system (just like EmDriving machine)
That means one and the same body may move at a constant velocity, not remaining at rest, once it produces some internal pressure difference (unbalanced forces) inside (at both ends of) the hollow body.
A's "action force" on B should be distinguished from B's "reaction? force" on A?? That isn't true. A's "action force" on B should be distinguished from B's "action force" on A. Read the following sentences. ~When one body (A) exerts an action force on a second body (B), the second body (which does not exert an action force by itself) simultaneously exerts a reaction force equal in magnitude and opposite in direction on the first body.
But, each body receives a reaction force equivalent to the action force by its body from the other body.~ — Preceding unsigned comment added by More-kenlouise ( talk • contribs) 06:15, 26 June 2016 (UTC)
And still, you cannot correct ... at all???? If so, you are disqualified for blaming me!!! — Preceding unsigned comment added by More-kenlouise ( talk • contribs) 13:42, 26 June 2016 (UTC) Could an uninvolved editor please close this thread? Clearly we have WP:CIR and WP:IDHT issues here, and any further disruptive behavior should be be addressed at WP:ANI Disruptive behavior!? That's a bit much. How did More-kenlouise take any more of such a behavior? Do explain it before the closing!! — Preceding unsigned comment added by More-kenlouise ( talk • contribs) 18:37, 26 June 2016 (UTC) |
Here's something I wasn't taught in chemistry class: I have a peptide containing serine, tyrosine and a C-terminal proline. I wish to amidate this proline residue with ethylamine (not necessarily directly), but without functionalizing the tyrosine and serine residues. Is this possible without use of expensive protecting groups? Yanping Nora Soong ( talk) 18:16, 25 June 2016 (UTC)
I recently installed an electrical outlet on my outdoor deck. Naturally I used an outlet with an integral Ground Fault Circuit Interrupter. (110 VAC, North American practice.) It's a brand-new, commercial grade, heavy-duty, 20 amp, outdoor-rated outlet. I assume it has the latest and greatest circuitry, it even has a little LED indicator that glows green when it's working correctly. I installed it in a weatherproof outdoor box with a weatherproof outdoor cover, whole nine yards.
But the first time I tried to use my portable circular saw with it, it tripped immediately. This was 100% repeatable: every time I reset it and tried the saw again, it tripped again.
The saw works fine in a different GFCI outlet, and it's a double-insulated saw with a 2-wire plug, so it's unlikely to have a ground fault. I considered that I might have wired the outlet incorrectly (it's all too easy to wrongly connect the supply lines to the downstream load terminals), but I double checked, and it's fine.
I wondered if commutator noise from the saw's 15-amp motor might be tricking the GFCI's sensitive detection circuit into tripping. I grabbed a heavy-duty extension cord (12 gauge wire, 25 or so feet long) and plugged the saw into that and the cord into the outlet, imagining that perhaps the cord's inductance might be enough to filter out the noise and keep the GFCI from tripping.
It worked! I've been using the saw all afternoon, and the GFCI has only tripped once.
So my questions are, has anyone heard of this problem, is my diagnosis accurate, and is the extension cord's inductance likely to be helping? (Or is there something else completely different going on?) — Steve Summit ( talk) 18:59, 25 June 2016 (UTC)
Science desk | ||
---|---|---|
< June 24 | << May | June | Jul >> | June 26 > |
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. |
On an episode of NCIS, it was mentioned that an old naval punishment involved feeding offending sailors only bread and water for a week, in order to plug up their gastrointestinal tracts. In real life, will such a diet really have the aforementioned consequences? 173.68.173.114 ( talk) 03:41, 25 June 2016 (UTC)
I studied the design of T-14 and I found a problem , the designers made an unmanned turret so they put the commander`s position in the front , but I imagined a scenario as this : the tank`s panoramic sight is disabled , the driver`s rear camera is disabled , the crew can`t see what`s behind them , do you consider this a big problem ? 94.249.115.70 ( talk) 10:39, 25 June 2016 (UTC)
So it`s an impractical tank as I supposed. 94.249.115.70 ( talk) 11:40, 25 June 2016 (UTC)
That`s it . 94.249.115.70 ( talk) 20:58, 25 June 2016 (UTC)
As they almost said in The Matrix, for this mission we're going to need drugs... lots of drugs. Or science, if you're into the hard stuff. Pass those red pills and buckle up, cause Kansas is going bye-bye!
From
"String Theory Co-Founder: Sub-Atomic Particles Are Evidence the Universe Was Created", CBS News:CNS News!
CBS refers me to a paper that I'm not getting in a readable form and this blog which makes its own curious claims like
But what is this stuff? I mean, how are "primitive semi-radius tachyons" defined, what does that even mean? What is the new technology from 2005? What the hell is taking off? And so on... Wnt ( talk) 14:42, 25 June 2016 (UTC)
Trying to get data to fill out the description for File:North Livingston Baptist Church.jpg, I found their Facebook page, which had a request for people to be tested for a bone marrow donation. Part of that statement says This drive was set up for Mason, a local boy with NEMO, which is even more rare than HLH. HLH I suppose is Hemophagocytic lymphohistiocytosis, but what could NEMO be? NEMO lists a lot of things that aren't relevant; I suppose it could be a reference to a problem with IKBKG, but that seems a bit of a stretch. Nyttend ( talk) 14:54, 25 June 2016 (UTC)
This discussion has been closed. Please do not modify it. |
---|
The following discussion has been closed. Please do not modify it. |
[The Supplement]
However, only in case of a physical system (called a newly semi or sub-closed system) that does allow certain types of transfers (such as transfer of mass and/or matter) inside the closed system,
There are the following justifiable reasons. In the first place, the law of momentum conservation has been implied by a principally action-reaction law as below. [The mainly existing definition of the Newton’s third law] ~When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.~ However, the above law should be reformed (revised) as follows because it isn't so easy to distinguish the action-reaction forces from the equilibrium of forces in the above fixed definition. ~When one body (A) exerts an action force on a second body (B),
And when A body’s action force interacts with B body’s action force, the equilibrium of forces between A & B are lost in case of (the initial) unbalanced momentums of the both bodies. But, each body receives a reaction force equivalent to the action force by its body from the other body.~ Note : The force (F or -F)’s reference value for an equation of momentum conservation in a collision of two bodies is chiefly based on a measure of one body’s action force (F) or reaction force (-F).
So, it is necessary to be careful of being in “uniform motion”, not “at rest” in the law of inertia for the united body in case of causing a perfectly inelastic collision by unbalanced action forces of the two bodies. As for the above important matter, even a main (hollow) body in the sub-closed system (just like EmDriving machine)
That means one and the same body may move at a constant velocity, not remaining at rest, once it produces some internal pressure difference (unbalanced forces) inside (at both ends of) the hollow body.
A's "action force" on B should be distinguished from B's "reaction? force" on A?? That isn't true. A's "action force" on B should be distinguished from B's "action force" on A. Read the following sentences. ~When one body (A) exerts an action force on a second body (B), the second body (which does not exert an action force by itself) simultaneously exerts a reaction force equal in magnitude and opposite in direction on the first body.
But, each body receives a reaction force equivalent to the action force by its body from the other body.~ — Preceding unsigned comment added by More-kenlouise ( talk • contribs) 06:15, 26 June 2016 (UTC)
And still, you cannot correct ... at all???? If so, you are disqualified for blaming me!!! — Preceding unsigned comment added by More-kenlouise ( talk • contribs) 13:42, 26 June 2016 (UTC) Could an uninvolved editor please close this thread? Clearly we have WP:CIR and WP:IDHT issues here, and any further disruptive behavior should be be addressed at WP:ANI Disruptive behavior!? That's a bit much. How did More-kenlouise take any more of such a behavior? Do explain it before the closing!! — Preceding unsigned comment added by More-kenlouise ( talk • contribs) 18:37, 26 June 2016 (UTC) |
Here's something I wasn't taught in chemistry class: I have a peptide containing serine, tyrosine and a C-terminal proline. I wish to amidate this proline residue with ethylamine (not necessarily directly), but without functionalizing the tyrosine and serine residues. Is this possible without use of expensive protecting groups? Yanping Nora Soong ( talk) 18:16, 25 June 2016 (UTC)
I recently installed an electrical outlet on my outdoor deck. Naturally I used an outlet with an integral Ground Fault Circuit Interrupter. (110 VAC, North American practice.) It's a brand-new, commercial grade, heavy-duty, 20 amp, outdoor-rated outlet. I assume it has the latest and greatest circuitry, it even has a little LED indicator that glows green when it's working correctly. I installed it in a weatherproof outdoor box with a weatherproof outdoor cover, whole nine yards.
But the first time I tried to use my portable circular saw with it, it tripped immediately. This was 100% repeatable: every time I reset it and tried the saw again, it tripped again.
The saw works fine in a different GFCI outlet, and it's a double-insulated saw with a 2-wire plug, so it's unlikely to have a ground fault. I considered that I might have wired the outlet incorrectly (it's all too easy to wrongly connect the supply lines to the downstream load terminals), but I double checked, and it's fine.
I wondered if commutator noise from the saw's 15-amp motor might be tricking the GFCI's sensitive detection circuit into tripping. I grabbed a heavy-duty extension cord (12 gauge wire, 25 or so feet long) and plugged the saw into that and the cord into the outlet, imagining that perhaps the cord's inductance might be enough to filter out the noise and keep the GFCI from tripping.
It worked! I've been using the saw all afternoon, and the GFCI has only tripped once.
So my questions are, has anyone heard of this problem, is my diagnosis accurate, and is the extension cord's inductance likely to be helping? (Or is there something else completely different going on?) — Steve Summit ( talk) 18:59, 25 June 2016 (UTC)