LaurieAG

I remember reading about a global survey in 2004 where the south Korean people regarded the US as being much more dangerous to them than North Korea.  Unfortunately it looks like Google has lost everything but the links with the title only as a reference or those that don't work or have been removed or lead to pages that may be harmful to your pc etc etc. 

https://www.google.com.au/search?rlz=1C1CHBF_en-gbAU727AU727&biw=1366&bih=627&q="US+more+dangerous+than+north+korea"+%2B+2004

Can anybody else remember this?

10 hours ago, Cap'n Refsmmat said:

You should still be able to use the math BBCode tags: x=−b±b2−4ac√2a

Could you be more specific about the other issues you're experiencing?

Compare the above quote with your original post. In your original post it appears as Tex while in my posted quote it appears as BBCode. 

7 hours ago, Mordred said:

Title says it all.

 

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K math command works but latex and tex don't 

The K math command doesn't appear correctly when quoted either.

Edit: It didn't render correctly in the edit preview window before posting. It wasn't me.

1. get to know hbar (Planck's constant)

Think of hbar as being the product of amounts of energy and time. Check that by typing things like this into google

It's more correct to think of hbar as the REDUCED Planck constant or Dirac constant Martin.

When you divide the STANDARD Planck constant h by 2 * Pi you get hbar.

https://en.wikipedia.org/wiki/Planck_constant

Just add each of the elements of the row to the end of a string (after converting from numbers), add the sum (ditto) onto the end and print the string after processing each row. Do the same for the column totals at the bottom and you're done.

Years ago I owned a nifty little SEIKO Translator that had about 1500 words in English, French, German, Spanish, Japanese Romanji and Kana script. It translated 'hai' as 'lung' and 'ku' as 'phrase' so a haiku is more specifically a lung phrase. i.e. a phrase that can be spoken in one breath. I used a 17 word rule consistently below as that is close to the average number of words that anybody would say in one breath while speaking normally.

You can have your magic beans Jack,

your children are hungry and we need the cow back.

The lack of just terms and equitable or fair pacts,

expose all crooked beanstalks to concerted attacks.

Unless obsessive cycles are stopped in their tracks,

our towns will again be as flat as tacks.

You have been too trusting Jack,

your children's futures remain black,

while current problems compound through lack.

Struggle earnestly against the pack,

repudiate rights to depreciatingly retract,

as giants fortress lie ripe for sack.

For only fair shares of the golden goose Jack,

will save beanstalks and giants from the axe.

While we're thinking about dark matter, I always find it interesting that our total calculated matter, dark matter + ordinary matter, equals our ordinary matter times [latex]2 \pi[/latex] within the error bars of our observations. Call it numerology if you like but I think it's an interesting property, especially on a universal scale, as no other constants are involved.

https://en.wikipedia.org/wiki/Numerology#To_describe_questionable_concepts_based_on_possibly_coincidental_numerical_patterns

The best known example of "numerology" in science involves the coincidental resemblance of certain large numbers that intrigued such eminent men as mathematical physicistPaul Dirac, mathematician Hermann Weyl and astronomer Arthur Stanley Eddington. These numerical coincidences refer to such quantities as the ratio of the age of the universe to the atomic unit of time, the number of electrons in the universe, and the difference in strengths between gravity and the electric force for the electron and proton. ("Is the Universe Fine Tuned for Us?", Stenger, V.J., page 3^[13]).

The discovery of atomic triads (dealing with elements primarily in the same group or column of the periodic table) was considered a form of numerology, and yet ultimately led to the construction of the periodic table. Here the atomic weight of the lightest element and the heaviest are summed, and averaged, and the average is found to be very close to that of the intermediate weight element. This didn't work with every triplet in the same group, but worked often enough to allow later workers to create generalizations. SeeDöbereiner's triads

Large number co-incidences continue to fascinate many mathematical physicists. For instance, James G. Gilson has constructed a "Quantum Theory of Gravity" based loosely on Dirac's large number hypothesis.^[14]

Wolfgang Pauli was also fascinated by the appearance of certain numbers, including 137, in physics.^[15] British mathematician I. J. Good wrote:

 

There have been a few examples of numerology that have led to theories that transformed society: see the mention of Kirchhoff and Balmer in Good (1962, p. 316) ... and one can well include Kepler on account of his third law. It would be fair enough to say that numerology was the origin of the theories of electromagnetism, quantum mechanics, gravitation.... So I intend no disparagement when I describe a formula as numerological. When a numerological formula is proposed, then we may ask whether it is correct. ... I think an appropriate definition of correctness is that the formula has a good explanation, in a Platonic sense, that is, the explanation could be based on a good theory that is not yet known but ‘exists’ in the universe of possible reasonable ideas.

 

— I. J. Good^[16]

Cycloid arcs, while an old concept, provide some interesting insights into circles and [math]\pi[/math], especially when you consider that the area of a complete cycloid plot equals the surface area of a sphere.

http://quadrivium.info/MathInt/Notes/Cycloid.pdf

In a complete cycloid plot (length [math]2 {\pi} r[/math], height [math]2 r[/math], area [math]4 {\pi} r^2 [/math]) (1) the area above the cycloid curve is equal to the area of the circle that created the cycloid and (2) the area below the cycloid curve is equal to 3 times the area of the circle that created the cycloid.

[math] {\bar \lambda} = \frac {\lambda}{2 \pi} = \frac{\hbar}{m c}[/math]

Fair enough, but the larger point is that it's a relatively minuscule total area that's required to generate enough energy to meet the demands of the entire planet. Further, that tiny bit of land can be anywhere and everywhere and can easily be scaled up, dispersed, and distributed. I don't believe anyone involved with those graphics was arguing that all energy should be generated only in one spot then distributed outward from there, which is what your point ultimately requires to become a valid criticism.

Hi iNow,

Centralised energy generation and distribution systems have the same massive losses during transmission. That's why rooftop/local solar is the best option as there is no transmission from generation to use.

While the solar panel areas shown on the graphics may be equivalent to current energy consumption there is no allowance made for the (massive) energy loss during its transmission to Germany, Europe or the rest of the world.

Just for comparison.

Hubble’s resolution in visible light is about 0.05 arcseconds (where 1 arcsecond = 1/60 arcminute = 1/3600 degree). To give some idea of what this means, if the Hubble Space Telescope were in Washington DC, it could distinguish two objects in New York City if they were separated by a distance of just 3 inches:

 

Everything. I took a quick look at integrals and thought it wasn't so hard, but I don't get any of it. I should probably just take my time to learn integrals properly.

The integral is just the opposite of the derivative so the tutorials on this forum should give you a helping hand.

http://www.scienceforums.net/topic/29473-introduction-to-calculus-differentiation/

http://www.scienceforums.net/topic/4108-calculus-i-lesson-1-a-background-to-differentation/

http://www.scienceforums.net/topic/4182-calculus-i-lesson-2-a-continuation-from-first-principles/

It is a thought experiment not a exercise in reality!

I prefer thought experiments that could be tested as opposed to ones that cannot, especially if the difference is minor.

Yes to the first, it's also called null like. Not sure how to answer your second question

The second question is because an observer right beside the track would suffer from whiplash if the experiment was observed in real time. Either that or they would require a close to 180 degrees view to capture all the different events as they occurred.

Have you ever been around a women of advanced years who feels she's lost status, and takes it out on you just for having seen? There are at least four genders if you ask me.

No randomc, I haven't. In the latter example I gave the industry was rife with bullying fraud and theft.

I'll try to dig up a link to a Phd paper I came across a couple of years ago as it may contribute to this discussion. The thesis was about the generic technical differences between corrupt organisations (CO) and organisations of corrupt individuals (OCI) operating within non corrupt organisations. While the corruption in CO's grew from the top down OCI's tended to grow from the bottom up and management indifference and/or complacency were the key things that allowed them to flourish. The two organisations referred to in the thesis were an international sporting body and the US Catholic church and the contents of reports produced after official investigations into these organisations was used extensively in the thesis.

I only found out later that the author had been an employee at a public organisation in another state for 20 years and that the results of an official corruption inquiry into this particular public organisation was the main driver for my states Public Interest Disclosure (PID) regime.

I think it was just her style... she was what... passive aggressive becomes when you give it authority? I've come across guys like that (phi, for eg) who have been my boss but they don't piss me off to the same extent.

 

inows see previous comment is where this has to end....

randomc, I found the following on Wikipedia with regards to passive aggressiveness that I can directly relate to non technical bosses managing technical professionals, especially in female dominated work environments. The strange thing is that I have also worked in both male and female dominated work groups, in similar technical capacities, and have never had any issues like this in male dominated groups, mainly because that type of behavior would be regarded as bullying, including in the ones I've worked in with female bosses.

http://en.wikipedia.org/wiki/Passive-aggressive_behavior

In conflict theory[edit]

In conflict theory, passive resistance is a rational response to demands that may simply be disagreed with. Passive-aggressive behavior can resemble a behavior better described as catty, as it consists of deliberate, active, but carefully veiled hostile acts which are distinctively different in character from the non-assertive style of passive aggression.^[4]

I can understand why you don't want to go into details so I'll supply you with a few examples from my own past experience, that you might be able to relate to.

When I started in a projects team in a female dominated (90%) section of 50 people in a 3K+ employee organisation I had a female technical boss who had a good understanding of the technical issues at hand and we worked well together and had a good rapport due to mutual respect. That changed after a couple of months when a non technical female was rotated into my bosses position and my technical minded female boss was rotated elsewhere.

Initially I would just give my new boss the same executive summary type information that I gave my previous boss and reserved the technical detail for the technical people I worked with. Unfortunately she questioned everything so each small paragraph or sentence became a detailed novella with many chapters, and very quickly she was in over her head, multiple times. If she had only trusted that the information I communicated to her in good faith was correct she would not have had the breakdown.

After her breakdown she changed and showed assertive passive aggression that matched the bolded points from the Wki above.

Shortly after at my first one on one meeting alone with her she said that she and the team did not want to receive any emails or speak to me with regards to the work I was doing in the team, even my designated backup. I just continued working with everybody else in the team in the same way I always did because they were technical people who didn't have a problem, but whenever I came near her she would put up the barriers and smother any attempt at communication.

At my second (six months later) one on one meeting alone with her she told me that my contract would not be extended when it finished in 4 months time. I didn't think that what my boss told me was false (my contract was extended another 2 times for 1.25 years, 4 months later) so I never realised that she was bullying me until much later on. I honestly believed what she told me to the extent that 3 months later, I responded via email to the CEO's secretary with regards to a CEO request for an update on my project, with a final paragraph that I had been informed by my boss that my contract would not be renewed.

I didn't realise that I was being bullied for about a year because I was so busy working. Over that year I attended 2 team meetings where my boss organised for another female employee to assist me and both times, 10 months apart, the other employee was allowed to take 4 weeks of annual leave when the time came along. I was exhausted due to not being able to take any holidays but glad because everything was rolling out smoothly without any help. This was just when she revealed her hidden hand.

Bullying behavior by males or females only has one end randomc, it should not be allowed to survive in any responsible organisation.

If you have problems that are anything remotely like the above, check if your organisation has some sort of Public Interest Disclosure (PID) system in place where bullying etc can be reported by employees and investigated internally without disclosure. In some countries, state or federal legislation can require organisations of certain sizes to have these types of systems in place. An organisation usually needs some sort of a PID if it has systems whose access is incumbent on employees signing confidentiality undertakings, with dob clauses, (due to state/federal Info Privacy and/or Info Sec legislation) if they become aware of unauthorised disclosures or modifications of system information by other employees or third parties.

Please note that all of my comments above are related to non technical females 45+ working in technical roles. I regularly work with female inspectors/engineers doing QA on major infrastructure projects and have never been bullied in any way shape or form. I give her the QA test results and she decides whether the job continues or not based on those results so she may as well be the boss.

One way that bullying can be detected is through unusual rosters singling out individual employees. From personal experience, and unfortunately after the event, I can say to watch out if 1/ you are given a 2 week roster with 2 days off at either end and work 10 days straight, then have 2 consecutive 2/ 2 week rosters without more than a single day off in a row where you finish late before your day off and start early straight after your day off. This gets really interesting if you rotate between 5 different shift start times: 2am, 5am, 7am, 11am and 2pm and roll out the final 5 consecutive days 3/ by starting the first shift at 2pm, the next at 11am, the next at 7am, the next at 5am and the final shift at 2am. I was positively jet lagged by the end so I didn't notice the roster pattern described above.

The disturbing thing was that the boss who designed these rosters was a white haired 60 year old grandmother, in a female dominant industry, who knew exactly what she was doing.

So for objects separated by L and at a speed of c, it matters whether dt is larger or smaller than L/c.

 

I'm missing where this is different than what was claimed.

If v = c, dx/dt = (c^2)/v = c so is it lightlike?

Also, if the observer was far enough away so it could observe all 3 events without moving, what would be the minimum distance to that point.

I have just corrected the image above and swapped the apparent shift colors for paths A and C.

Everything so far has been based on Einstein's original thought experiment with a train frame, an embankment frame and an observer so what happens when we move the observer to different locations?

If you extend the basic train experiment to use a circular track you can use SR based relativistic rolling wheel solutions that have a wheel, a road and an axle or carriage frame. The points in the wheel frame rotate around the circumference and the road sits stationary as the wheel rolls by. The axle frame is different from the wheel frame in that it doesn't rotate with the wheel but stays at the same location as the axle while the carriage frame is any other frame that is fixed with respect to the axle frame/location and its movement at any time.

If the observer moved directly backwards to the center of the circular track it would be equidistant from both the front and the back of the train. If the track has sensors that are triggered by switches built into the front middle and rear of the train as it travels past and these ground switches turn on a light at the side of the track pointed directly at the observer when triggered then how would the pattern of lights appear at the observer?

From this location would you see the first image with 2 lights and then a later image with 1 or would you see 1 then 2 then 3 lights?

Hi I_Zeratul,

Wikipedia has some good information and the 2 links below cover over half of your questions.

http://en.wikipedia.org/wiki/GUID_Partition_Table

http://en.wikipedia.org/wiki/Parallel_ATA

Thanks Janus and pantheory,

It will be interesting to see what the new calculations say as I was told on another forum that there would be no change..

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