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What did the Math Book say to its counselor?
How are the symbols accessed?
How can I generate/create a symbol?
The only way to end all war is not fight back. Thus when someone visits (the way the soviets came to Georgia), conflict can be avoided by not making a fuss.
When some person takes control of country and proceeds to kill or destroy a specific segment of that society, we should be very adamant and say: You are mean and must stop the killing. And to really make it hurt, you have to shake your finger.
It should be very obvious that such a method works. I have not found an example of it actually working, but I was instructed that it does.
You just have to tell a bully to stop, and they will always stop their silly behaviour and be super good after that.
If that person has a gun (or atomic bomb) you merely have to stand on your principles. You tell that person that God does not approve of such actions. If that persons starts shooting at you and says "God directed me to kill you", then if might be time to re-think ending all wars.
Hitler really did not want a war. But all those English people did not understand his manner of ending all wars, and look at what happened. Hitler only wanted to get rid of those that he felt were not in his best interest. If there had been no resistance, there would not have been that nasty war in which many died.
Obama will remove all U.S. troops, and then all wars around the globe will cease.
The most important result of the LHC [Large Hadron Collider] will be our ability to phrase the questions better. Better questions seem to provide better answers.
We really do not know what questions we need to ask. The LHC will give insight about how the questions could be stated.
We will get an enormous amount of data. It will be a little bit like getting all the sand on your local beach delivered to your lab, but in manageable boxes. After examining a few thousand boxes, it may be possible to explain some transformations. But most likely, we will discover questions that were never thought of. That's the real value, and it is worth the cost.
By my definition, math is a science.
The word science is derived from the French word scire (to know).
Thus, if you acquire knowledge about something in a systematic way, you have a science.
If the information cannot be verified independently, then you do not have a science.
See this
http://en.wikipedia.org/wiki/Mathematics
This quote is from there:
Carl Friedrich Gauss referred to mathematics as "the Queen of the Sciences". the word corresponding to science means (field of) knowledge there is no doubt that mathematics is in this sense a science. The specialization restricting the meaning to natural science is of later date. If one considers science to be strictly about the physical world, then mathematics, or at least pure mathematics, is not a science.
JaneFairfax I am enarmored of your talents.
I spotted a mistake in John Wyndhams novel
There are many who would have phrased it:
John Wyndham made a mistake in his novel
I have not read enough of Wyndham's novels to make a judgement about his style or use of words. I have seen a lot of errors by editors, proof readers imposing their ideas of what is right. My thoughts are that Wyndham used arrogate but a proofreader fixed it to
abrogate.
Keep up the good work.
what does it mean to learn by doing?
this approach called "Learn by Doing", ... you basically do ... the exercises enough times so that you know the rules
It may only require someone (usually a teacher/professor) to state the problem and a normally expected solution for a person to understand the concept. However, there are some students that cannot grasp some complex problems. Often an instructor will give an incomplete statement of the problem and a solution. The student will then misunderstand why what occurs. If you are adept at grasping (that is you can wrap your head around the idea) the basics then you wil require only a few exercises. However, there are some who will struggle there entire lives doing exercises and will never completely understand the fundamentals of the terminology.
the other notion I've been getting, is that only through struggling through problems do you really gain a deeper understanding.
You can bench press a two-pound weight all want, but that is unlikely to prepare you for championship bench pressing. You will get better by doing more difficult problems than the ones you have previously done. You may gain an extremely deep understanding by doing easy examples. But most likely intricate problems will provide multiple doors through which you can gain entrance into the area where the light bulb flashes bright.
Memorization/drills are important. They explain the best/correct method to bench press a small weight, so that when you want to bench press a hundred kilograms you have the knowledge to do it in a safe and correct manner.
If you do not know what you are doing, it is unlikely that anyone else will either.
Yeah, that's a typical woman.
You ask a woman a simple question and she'll give a smart alec reply but not actually answer the question.
The "quickest way" but NOT the best way.
BTW JaneFairfax IS THE ONLY WOMAN IN THE WORLD WHO IS NOT TYPICAL.
That should keep her from kicking me in the asterisks.
careless25
Full Member
wrote
"Einstein wrote this quiz last century."
Could you cite the source that attributes this puzzle to Einstein?
This is shown by WIKIPEDIA
http://en.wikipedia.org/wiki/Zebra_Puzzle
Zebra Puzzle
From Wikipedia, the free encyclopedia
Jump to: navigation, search
The Zebra Puzzle is a well-known logic puzzle.It is often called "Einstein's Puzzle" or "Einstein's Riddle" because it is said to have been invented by Albert Einstein as a boy. Some claim that Einstein said "only 2 percent of the world's population can solve it". It is also sometimes attributed to Lewis Carroll. However, there is no known evidence for Einstein's or Carroll's authorship.
There are several versions of this puzzle. The version below is quoted from the first known publication in Life International magazine on December 17, 1962. The March 25, 1963, issue contained the solution given below and the names of several hundred solvers from around the world.
There are two answers.
If you treat it as a 3-4-5 triangle, you don't need a calculator to get either result.
deus ex machina
Since no specific fuel was alluded to in the initial question, the correct assumption is that the train is electrical in nature and thus has no expendables aboard.
JaneFairfax actually had the most logical answer -- ALL trains carry champion swimmers!
The LHC (Large Hadron Collider) is too many orders of magnitude too small to generate a deformation in space. That means that it cannot possibly generate a "black hole".
The "idea" that there could possibly be such a thing as a "tiny black hole" should be avoided.
What happens to the space that was occupied by an atom after it passes the event horizon?
Some other atom will replace it.
If some other atom replaces it, then the fate of the 2nd atom will be the same.
Intuitively, the tiny black hole is no longer small.
That's assuming that Jack & Susan can type on the same page at the same time.
How old are you?
Long division is the stuff introduced in the 4th grade of elementary school.
Judging by the sentence structure it looks as if you are at least a 5th grader.
Anyway.
First you should (must) understand positional notation.
[I won't attempt to explain numbers & numerals or why you should know the difference.]
The same numeral in the ones, tens, hundreds, thousands positions will mean different numbers.
If you do not understand positional notation and what the numbers mean
you will need to do some study before comprehending division.
Simply: You have 180 divided by 250, short hand: 180/250
Your numerator is 180, denominator is 250.
Since this is elementary math, the concept of negative numbers will not be covered. That is, for this lesson you cannot take two apples if there is only one apple on the tree. That should make sense.
Now,
The 1 in the numerator represents hundreds.
How many times can you subtract 250 from 1. Answer: Zero. You have no hundreds in the result.
the 18 represents tens.
How many times can you subtract 250 from 18. Answer: Zero. You have no tens in the result.
the 180 represents units or ones.
How many times can you subtract 250 from 180. Answer: Zero. You have no ones or whole numbers in the result.
the 180.0 or 1800 represents tenths
How many times can you subtract 250 from 1800. Answer: seven. You have 7 tenths in the result.
7*250 = 1750
1800 - 7*250 = 50. 50 is your remainder. 50 tenths.
50 tenths is equivalent to 500 hundredths. Does that make sense.
How many times can you subtract 250 from 500. Answer: two. You have two hundredths in the result.
500 - 2*250 = 0 You have no remainder. You have an exact value.
To summarize. 0 hundreds, 0 tens, 0 ones, 7 tenths, 2 hundredths.
or: 000.72
graphically:
step 1.
0.7
_________________ 0.7 times 250 = 175.0
250 | 180.00000000
-175.00000000
-----------------
= 5.00000000
step 2.
0.72
_________________ 0.2 times 250 = 50.0
250 | 180.00000000
-175.00000000
-----------------
= 5.00000000
-5.00000000
-----------------
= 0.00000000
You can see the alignment of the numbers.
Multiplication is many additions or multiple additions.
Long division (or short division) is nothing more than extended subtraction.
Once you comprehend positional notation of numbers in the decimal system, then it is relatively easy to
transfer the concept to octal and hexadecimal numbering systems.
That's rather pedantic,
but that is just about the stuff that Mrs. Campbell taught when I was in the 4th grade of elementary school.
The cosine law does not easily apply, but the law of sines does.
It then becomes a simultaneous equation.
What if the Hybrid Chief does say "No."
He'd be lying & telling the truth at the same time.
blank_brunette
stated:
4.swimming, swimming, and more swimming! (i have an underground pool)
That is fantastic! I would love to see it.
How far underground is it?
Do you use stairs / elevator for access?
... I am so envious.
A few of my friends just have in ground pools.
x = DBtan54
x = [(350tan32)/(tan54 + tan32)]tan54
x = 138.043885km
x = [ (350tan32) / (tan54 + tan32) ] tan54 = 150.416
My calculator does not yield the 138.04 value.
Check your batteries
Incidental question:
For a really precise answer, what is the elevation of the points A and B?
When you say "above the ground" are you referring to see level, actual ground, or the earth gravity model? In any case what is the Latitude/Longitude of the observation points? Does Refraction need to be accounted for?
Just an observation:
point A is approx. 4.5 km above "ground" and point B is approx. 1 km above.
assuming they are earth based.
MathisFun::
I thought that was an unfair comment ...
What was unfair about it?
Actually, I just wish that the world could take a vote on which which musical instrument we should use, and get rid of all others. Seriously, how much more time could we spend becoming better musicans if we only had to learn one musical instrument?
Whats even funnier is, ... we could get rid of all those hemisemidemiquavers.
BTW
Some of you may not realize it, but I am not musical prodigy.
Fixed formatting - Ricky
John E. Franklin
Show your numbers (or hide 'em).
Your calculator needs batteries!.
Jenny's distance is 1 foot per seccond for t seconds.
Kenny's distance is 3*J.
Assume that Jenny's vision is cyclopic-laser (that is, no parallax, no stereoscopic, and field of vision is only a half-light wave frequency in width in a flat plane.)
Jenny will only see Kenny AFTER she passes the midpoint of the circular building.
The distance after the center point is some distance s.
Jenny will walk (100+s) feet before Jenny sees Kenny; and Kenny will have walked 3*(100+s) or (300 + 3s) feet.
At the instant Jenny sees Kenny, Jenny is SquareRoot(100^2+ s^2) distance from the center point of the circular building; Kenny is SquareRoot( ( 300+3s-100))^2 + 100^2 ) from the center point; Jenny and Kenny are SquareRoot( 200^2 + ( 300+3*s - (100+s) )^2 ) apart.
With that information you have this equation:
100 / ( 200 + 3s) = s / 100
thus:
3s^2 + 200s - 100^2 = 0
s = -200 + SquareRoot( 200^2 + 4*3*100^2 ) / (2*3)
s = (-100 + 200 ) / 3
s = 100/3 '<-- distance past center, NOT TIMEJohn E. Franklin could you post your step-by-step solution?
It is easy to generate the information you seek.
The best is to create your own.
The principle cryptographic problem is the method used to encipher the data.
If you do NOT know how the plain text was enciphered, you may expend enormous resources with no discernible benefit.
AFTER you know the method used to encipher the plain text, it is possible to "waste" a lifetime using an inefficient decryption procedure.
Many newspapers publish a daily puzzle called cryptoquip [that may be a registered trademark].
It is a simple substitution cipher.
This is one of the results from google: http://cryptoquip.qarchive.org/
spherical trigonometry!
You are viewing/measuring the angles in a plane normal to your line of sight.
The sum of the angles of a triangle on a sphere is greater than 180 degrees.
Thus, the sum of the angles of a quadrilateral on a sphere will be greater than 360 degrees.
The brilliance of your observation:
You can "prove" to some that the sum of the angle of a square is greater than 360 degrees.
Of course, those are then same persons who believe in the "proofs" that 1 = 2 and 1 = 0.
Actually, I just wish that the world could take a vote on which language we should use, and get rid of all others. Seriously, how much more time could we spend becoming better programmers and computer scientists if we only had to learn one universal programming language?
It appears as if you know little or nothing about computers.
To have a "universal" programming language, it becomes necessary to incorporate ALL computers languages into 1 language. The reason: TIME.
Use a simple word processor ( the old dos EDLIN ), type a single character, and save the file.
Then use a current word processor program ( microsoft WORD, or any text formatting program) and type a single character, then save.
The simple word processor's save file length: 1 (or perhaps) 3 characters in length.
The commercial complex word processor file length: most likely several hundred thousand bytes.
It requires more time to process more data.
I like C because it generates a very small 'exe' file.
C++ (with it greatly added features, that I like) will add 30 thousand to several hundred thousand bytes to the 'exe' file length.
At the present time, the entire RTL (run time library) for some languages will be appended to the executable, making it a BLOATED hog of a file.
I want programs to run/execute extremely fast.
I can type about 60 words a minute when creating letters/notes.
The text processor I use (microsoft WORD) is most irritating when I type several characters and then look at the screen and have to wait for a fraction of a second (or many times several seconds) before the characters appear on the screen. I'm using a 3.4 GHZ w/ 1000 MB ram.
The are some persons who like a Corvett, others a KIA, and some a Mack Truck. Would you even think that everyone would want to have the same type-kind-model-color vehicle?
Computer languages are here for a purpose: they apply to different requirements. Your operating system is effectively a compute language.
I like the differences.
More computer languages will be developed because they serve a purpose. A word processor itself is a "computer language" that handles/executes the text/instructions given to it.
Therefore, I say, more. Lets have thousands and thousands of different computer languages.
Languages evolve. I hope they never stop.
At some level I achieved the smarts of half a turnip.
There was a level that required the operator to click on the letter "v".
I tried everything else except the letter v.
NO response.
It was impossible to do anything else but click on the letter v.
The curtain opens and reveals a wall with only 1 door.
MontyHall: Which door do you want to choose? 1, 2, or 3?
Player: But there is ONLY 1 door.
MontyHall: So which door do you want to choose?
Player: I have no choice but to choose the ONLY door?
MontyHall: So that means that you are going to choose door number 1?
Player: No. I want door number 2.
MontyHall: Good Choice. Open door number 3!
end of scene.
At that point of the game, I realized that it was far above my intelligence level.
The game is so intelligently crafted & designed, I will never be able to approach the zenith.
If the levels are mapped to IQ, then mine equates to the turnip. Brilliant! oops. Half-turnip!
Which half of the intelligent turnip do I equal.
Left half or right half?
Front half or rear half?
Upper half or lower half?
Classical or Quantum?
Young turnip or old turnip?
Red turnip or blue turnip?
Trying to resolve these questions may take a week. Should I get back to you on this?
BTW
I was not bored.
Irritated is more descriptive.