Saturday, May 9, 2009

How to Improve Your Memory & Exercise Your Brain

Everyone can take steps to improve their memory, and with time and practice most people can gain the ability to memorize seemingly impossible amounts of information. Whether you want to win the World Memory Championships, ace your history test, or simply remember where you put your keys, this article can get you started. Scientists believe that exercising your brain can create a ‘cognitive reserve’ that will help you stay sharp as you age.

1. Convince yourself that you do have a good memory that will improve. Too many people get stuck here and convince themselves that their memory is bad, that they are just not good with names, that numbers just slip out of their minds for some reason. Erase those thoughts and vow to improve your memory. Commit yourself to the task and bask in your achievements — it’s hard to keep motivated if you beat yourself down every time you make a little bit of progress.

2. Keep your brain active. The brain is not a muscle, but regularly “exercising� the brain actually does keep it growing and spurs the development of new nerve connections that can help improve memory. By developing new mental skills—especially complex ones such as learning a new language or learning to play a new musical instrument—and challenging your brain with puzzles and games you can keep your brain active and improve its physiological functioning.

3. Exercise daily. Regular aerobic exercise improves circulation and efficiency throughout the body, including in the brain, and can help ward off the memory loss that comes with aging. Exercise also makes you more alert and relaxed, and can thereby improve your memory uptake, allowing you to take better mental “pictures.�

4. Reduce stress. Chronic stress, although it does not physically damage the brain, can make remembering much more difficult. Even temporary stresses can make it more difficult to effectively focus on concepts and observe things. Try to relax, regularly practice yoga or other stretching exercises, and see a doctor if you have severe chronic stress.

5. Eat well and eat right. There are a lot of herbal supplements on the market that claim to improve memory, but none have yet been shown to be effective in clinical tests (although small studies have shown some promising results for ginkgo biloba and phosphatidylserine) . A healthy diet, however, contributes to a healthy brain, and foods containing antioxidants—broccoli, blueberries, spinach, and berries, for example—and Omega-3 fatty acids appear to promote healthy brain functioning. Feed your brain with such supplements as Thiamine, Vitamin E, Niacin and Vitamin B-6. Grazing, eating 5 or 6 small meals throughout the day instead of 3 large meals, also seems to improve mental functioning (including memory) by limiting dips in blood sugar, which may negatively affect the brain.

6. Take better pictures. Often we forget things not because our memory is bad, but rather because our observational skills need work. One common situation where this occurs (and which almost everyone can relate to) is meeting new people. Often we don’t really learn people’s names at first because we aren’t really concentrating on remembering them. You’ll find that if you make a conscious effort to remember such things, you’ll do much better. One way to train yourself to be more observant is to look at an unfamiliar photograph for a few seconds and then turn the photograph over and describe or write down as many details as you can about the photograph. Try closing your eyes and picturing the photo in your mind. Use a new photograph each time you try this exercise, and with regular practice you will find you’re able to remember more details with even shorter glimpses of the photos.

7. Give yourself time to form a memory. Memories are very fragile in the short-term, and distractions can make you quickly forget something as simple as a phone number. The key to avoid losing memories before you can even form them is to be able to focus on the thing to be remembered for a while without thinking about other things, so when you’re trying to remember something, avoid distractions and complicated tasks for a few minutes.

8. Create vivid, memorable images. You remember information more easily if you can visualize it. If you want to associate a child with a book, try not to visualize the child reading the book – that’s too simple and forgettable. Instead, come up with something more jarring, something that sticks, like the book chasing the child, or the child eating the book. It’s your mind – make the images as shocking and emotional as possible to keep the associations strong.

9. Repeat things you need to learn. The more times you hear, see, or think about something, the more surely you’ll remember it, right? It’s a no-brainer. When you want to remember something, be it your new coworker’s name or your best friend’s birthday, repeat it, either out loud or silently. Try writing it down; think about it.

10. Group things you need to remember. Random lists of things (a shopping list, for example) can be especially difficult to remember. To make it easier, try categorizing the individual things from the list. If you can remember that, among other things, you wanted to buy four different kinds of vegetables, you’ll find it easier to remember all four.

11. Organize your life. Keep items that you frequently need, such as keys and eyeglasses, in the same place every time. Use an electronic organizer or daily planner to keep track of appointments, due dates for bills, and other tasks. Keep phone numbers and addresses in an address book or enter them into your computer or cell phone. Improved organization can help free up your powers of concentration so that you can remember less routine things. Even if being organized doesn’t improve your memory, you’ll receive a lot of the same benefits (i.e. you won’t have to search for your keys anymore).

12. Try meditation. Research now suggests that people who regularly practice “mindfulness� meditation are able to focus better and may have better memories. Mindfulness (also known as awareness or insight meditation) is the type commonly practiced in Western countries and is easy to learn. Studies at Massachusetts General Hospital show that regular meditation thickens the cerebral cortex in the brain by increasing the blood flow to that region. Some researchers believe this can enhance attention span, focus, and memory.

13. Sleep well. The amount of sleep we get affects the brain’s ability to recall recently learned information. Getting a good night’s sleep – a minimum of seven hours a night – may improve your short-term memory and long-term relational memory, according to recent studies conducted at the Harvard Medical School.

14. Build your memorization arsenal. Learn pegs, memory palaces, and the Dominic System. These techniques form the foundation for mnemonic techniques, and will visibly improve your memory.

15. Venture out and learn from your mistakes. Go ahead and take a stab at memorizing the first one hundred digits of pi, or, if you’ve done that already, the first one thousand. Memorize the monarchs of England through your memory palaces, or your grocery list through visualization. Through diligent effort you will eventually master the art of memorization

Thursday, March 26, 2009

Lateral thinking

Lateral thinking is a term coined by Edward de Bono. He defines it as a technique of problem solving by approaching problems indirectly at diverse angles instead of concentrating on one approach at length.

Check out your lateral thinking prowess! The first 4 images are the questions and the last four the answers.

Please do not look at the answers first, these are really good, try it out
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So, did u like it? please leave ur comments..

Who has fish at home? (only 2% could solve it)

This quiz was made up by Albert Einstein and according to him 98% willnot solve it.

There is a row of five houses, each having a different colour. In thesehouses live five people of various nationalities. Each of them nurturesa different beast, likes different drinks and smokes different brand ofcigars.

The Brit lives in the Red house.
The Swede keeps dogs as pets.
The Dane drinks tea.
The Green house is on the left of the White house.
The owner of the Green house drinks coffee.
The person who smokes Pall Mall rears birds.
The owner of the Yellow house smokes Dunhill.
The man living in the centre house drinks milk.
The Norwegian lives in the first house.
The man who smokes Blends lives next to the one who keeps cats.
The man who keeps horses lives next to the man who smokes Dunhill.
The man who smokes Blue Master drinks beer.
The German smokes Prince.
The Norwegian lives next to the Blue house.
The man who smokes Blends has a neighbour who drinks water.

Who has fish at home?(are you one of the 2% ?).

Give your answers and discuss with others why your answer is correct?

Wednesday, March 25, 2009

4 Squares- Amazing

The Figure shows four squares A,B,C,D

1/4th of the square A.B & C is shaded

Now, you will be asked to do something and every next image is answer to the question. So,dont look at the answers first and try it yourself. Question will keep on getting tricker yet easier but tuffer... :-)





Divide unshaded portion of square 'A' into TWO equal and identical parts....(dont look at below image and try it yourself)

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Now, Divide unshaded portion of square 'B' into THREE equal and identical parts...



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Divide unshaded portion of square 'C' into Four equal and identical parts....(try it yourself,then tally with below answer)Clues: Solution is not in the form of Triangles...The solution lies in the problem itself....



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Now, the tuffest one... Divide 'D' into SEVEN equal and identical parts....



Clues: Solution is not in the form of Triangles...This was done by Bill Gates in 7 Seconds, so how much would you take to answer....
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4 CRIMINALS...!!

4 criminals are caught and are to be punished. The Judge allows them to be freed if they can solve a puzzle. If they do not, they will be hung. They agreed.

The 4 criminals are lined up on some steps (shown in picture). They are all facing in the same direction. A wall separates the fourth man from the other three.

So to summarize:-
Man 1 can see men 2 and 3.
Man 2 can see man 3.
Man 3 can see none of the others.
Man 4 can see none of the others.

The criminals are wearing hats. They are told that there are two white hats and two black hats. The men initially don't know what colour hat they are wearing. They are told to shout out the color of the hat that they are wearing as soon as they know for certain what colour it is.

They are not allowed to turn round or move.
They are not allowed to talk to each other.
They are not allowed to take their hats off.

Who is the first person to shout out and why?

Tuesday, March 24, 2009

MNC's Aptitude Question and Answers

Aptitude Questions1.
If 2x-y=4 then 6x-3y=?
(a)15
(b)12
(c)18
(d)10
Ans. (b)
2.If x=y=2z and xyz=256 then what is the value of x?
(a)12
(b)8
(c)16
(d)6
Ans. (b)
3. (1/10)18 - (1/10)20 = ?
(a) 99/1020
(b) 99/10
(c) 0.9
(d) none of these
Ans. (a)
4.Pipe A can fill in 20 minutes and Pipe B in 30 minsand Pipe C canempty the same in 40 mins.If all of them worktogether, find the timetaken to fill the tank
(a) 17 1/7 mins
(b) 20 mins
(c) 8 mins
(d) none of these
Ans. (a)
5. Thirty men take 20 days to complete a job working 9hours a day.Howmany hour a day should 40 men work to complete thejob?
(a) 8 hrs
(b) 7 1/2 hrs
(c) 7 hrs
(d) 9 hrs
Ans. (b)
6. Find the smallest number in a GP whose sum is 38and product 1728
(a) 12
(b) 20
(c) 8
(d) none of these
Ans. (c)
7. A boat travels 20 kms upstream in 6 hrs and 18 kmsdownstream in 4hrs.Find the speed of the boat in still water and thespeed of thewater current?
(a) 1/2 kmph
(b) 7/12 kmph
(c) 5 kmph
(d) none of these
Ans. (b)
8. A goat is tied to one corner of a square plot ofside 12m by a rope7m long.Find the area it can graze?
(a) 38.5 sq.m
(b) 155 sq.m
(c) 144 sq.m
(d) 19.25 sq.m
Ans. (a)
9. Mr. Shah decided to walk down the escalator of atube station. Hefound that if he walks down 26 steps, he requires 30seconds toreach the bottom. However, if he steps down 34 stairshe would onlyrequire 18 seconds to get to the bottom. If the timeis measured fromthe moment the top step begins to descend to thetime he steps offthe last step at the bottom, find out the height ofthe stair way insteps?
Ans.46 steps.
10. The average age of 10 members of a committee isthe same as it was4 years ago, because an old member has been replacedby a youngmember. Find how much younger is the new member ?Ans.40 years.
11. Three containers A, B and C have volumes a, b, andc respectively;and container A is full of water while the other twoare empty. Iffrom container A water is poured into container Bwhich becomes 1/3full, and into container C which becomes 1/2 full, howmuch water isleft in container A?
12. ABCE is an isosceles trapezoid and ACDE is arectangle. AB = 10and EC = 20. What is the length of AE?
Ans. AE = 10.
13. Three cards are drawn at random from an ordinarypack of cards.Find the probability that they will consist of a king,a queen and an ace.
Ans. 64/2210.
14. A number of cats got together and decided to killbetween them999919 mice. Every cat killed an equal number ofmice. Each catkilled more mice than there were cats. How many catsdo you thinkthere were ?Ans. 991.
15. If Log2 x - 5 Log x + 6 = 0, then what would thevalue / values ofx be?
Ans. x = e2 or e3.
16. The square of a two digit number is divided byhalf the number.After 36 is added to the quotient, this sum is thendivided by 2.The digits of the resulting number are the same asthose in theoriginal number, but they are in reverse order. Theten's place ofthe original number is equal to twice the differencebetween itsdigits. What is the number?
Ans. 46
17.Can you tender a one rupee note in such a mannerthat there shallbe total 50 coins but none of them would be 2 paisecoins.?
Ans. 45 one paisa coins, 2 five paise coins, 2 tenpaise coins, and 1twenty-five paise coins.
18.A monkey starts climbing up a tree 20ft. tall. Eachhour, it hops3ft. and slips back 2ft. How much time would it takethe monkey toreach the top?
Ans.18 hours.
19. What is the missing number in this series? 8 214 6 11 ? 14 6 18 12
Ans. 9
20. A certain type of mixture is prepared by mixingbrand A at Rs.9 akg. with brand B at Rs.4 a kg. If the mixture is worthRs.7 a kg., howmany kgs. of brand A are needed to make 40kgs. ofthe mixture?
Ans. Brand A needed is 24kgs.
21. A wizard named Nepo says "I am only three times myson's age. Myfather is 40 years more than twice my age. Togetherthe three of usare a mere 1240 years old." How old is Nepo?
Ans. 360 years old.
22. One dog tells the other that there are two dogs infront of me.The other one also shouts that he too had two behindhim. How many arethey?
Ans. Three.
23. A man ate 100 bananas in five days, each dayeating 6 more thanthe previous day. How many bananas did he eat on thefirst day?
Ans. Eight.
24. If it takes five minutes to boil one egg, how longwill it take toboil four eggs?
Ans. Five minutes.
25. The minute hand of a clock overtakes the hour handat intervals of64 minutes of correct time. How much a day does theclock gain or lose?
Ans. 32 8/11 minutes.
26. Solve for x and y: 1/x - 1/y = 1/3, 1/x2 + 1/y2= 5/9.Ans. x = 3/2 or -3 and y = 3 or -3/2.29. Daal is now being sold at Rs. 20 a kg. During lastmonth its ratewas Rs. 16 per kg. By how much percent should a familyreduce itsconsumption so as to keep the expenditure fixed?
Ans. 20 %.
27. Find the least value of 3x + 4y if x2y3 = 6.
Ans. 10.
28. Can you find out what day of the week was January12, 1979?
Ans. Friday.
29. A garrison of 3300 men has provisions for 32 days,when given at arate of 850 grams per head. At the end of 7 days areinforcementarrives and it was found that now the provisions willlast 8 daysless, when given at the rate of 825 grams per head.How, many more mencan it feed?
Ans. 1700 men.
30. From 5 different green balls, four different blueballs and threedifferent red balls, how many combinations of ballscan be chosentaking at least one green and one blue ball?
Ans. 3720.
31. Three pipes, A, B, & C are attached to a tank. A &B can fill itin 20 & 30 minutes respectively while C can empty itin 15 minutes.If A, B & C are kept open successively for 1 minuteeach, how soonwill the tank be filled?
Ans. 167 minutes.
32. A person walking 5/6 of his usual rate is 40minutes late. What ishis usual time?
Ans. 3 hours 20 minutes.
36.For a motorist there are three ways going from CityA to City C. Byway of bridge the distance is 20 miles and toll is$0.75. A tunnelbetween the two cities is a distance of 10 miles andtoll is $1.00 forthe vehicle and driver and $0.10 for each passenger. Atwo-lanehighway without toll goes east for 30 miles to city Band then 20miles in a northwest direction to City C.
1. Which is the shortest route from B to C
(a) Directly on toll free highway to City C
(b) The bridge
(c) The Tunnel
(d) The bridge or the tunnel
(e) The bridge only if traffic is heavy on the tollfree highway
Ans. (a)
2. The most economical way of going from City A toCity B, in terms oftoll and distance is to use the(
a) tunnel
(b) bridge
(c) bridge or tunnel
(d) toll free highway
(e) bridge and highway
Ans. (a)
3. Jim usually drives alone from City C to City Aevery working day.His firm deducts a percentage of employee pay forlateness. Whichfactor would most influence his choice of the bridgeor the tunnel ?
(a) Whether his wife goes with him
(b) scenic beauty on the route
(c) Traffic conditions on the road, bridge and tunnel
(d) saving $0.25 in tolls
(e) price of gasoline consumed in covering additional10 miles on thebridge
Ans. (a)4.
In choosing between the use of the bridge and thetunnel the chieffactor(s) would be:
I. Traffic and road conditions
II. Number of passengers in the car
III. Location of one's homes in the center oroutskirts of one of thecities
IV. Desire to save $0.25
(a) I only(b) II only(c) II and III only(d) III and IV only(e) I and II only
Ans. (a)
34.The letters A, B, C, D, E, F and G, not necessarilyin that order,stand for seven consecutive integers from 1 to 10D is 3 less than AB is the middle termF is as much less than B as C is greater than DG is greater than F1. The fifth integer is
(a) A
(b) C
(c) D
(d) E
(e) F
Ans. (a)
2. A is as much greater than F as which integer isless than G
(a) A
(b) B
(c) C
(d)D
(e)E
Ans. (a)
3. If A = 7, the sum of E and G is
(a) 8
(b) 10
(c) 12
(d) 14
(e) 16
Ans. (a)
4. A - F = ?
(a) 1
(b) 2
(c) 3
(d) 4
(e) Cannot be determined
Ans. (a)
5. An integer T is as much greater than C as C isgreater than E. Tcan be written as A + E. What is D?
(a) 2
(b) 3
(c) 4
(d) 5
(e) Cannot be determined
Ans. (a)
6. The greatest possible value of C is how muchgreater than thesmallest possible value of D?
(a) 2
(b) 3
(c) 4
(d) 5
(e) 6
Ans. (a)
35.1. All G's are H's2. All G's are J's or K's3. All J's and K's are G's4. All L's are K's5. All N's are M's6. No M's are G's1. If no P's are K's, which of the following must betrue?
(a) All P's are J's
(b) No P is a G
(c) No P is an H
(d) If any P is an H it is a G
(e) If any P is a G it is a J
Ans.(a)
2. Which of the following can be logically deducedfrom the conditionsstated?
(a) No M's are H's
(b) No M's that are not N's are H's
(c) No H's are M's
(d) Some M's are H's
(e) All M's are H's
Ans. (a)
3. Which of the following is inconsistent with one ormore of theconditions?
(a) All H's are G's
(b) All H's that are not G's are M's
(c) Some H's are both M's and G's
(d) No M's are H's(e) All M's are H's
Ans. (a)
4. The statement "No L's are J's" is
I. Logically deducible from the conditions stated
II. Consistent with but not deducible from theconditions stated
III. Deducible from the stated conditions togetherwith the additionalstatement "No J's are K's"
(a) I only
(b) II only
(c) III only
(d) II and III only
(e) Neither I, II nor III
Ans. (a)

Monday, March 23, 2009

Wednesday, February 11, 2009

Free javascripts codes and readymade project

If you are looking for free javascript codes and cut-paste project for small assignments,then visit
www.javascriptfreekit.com