No one likes to make mistakes. But a new study says organizations learn more from their failures than from their successes, and keep that knowledge longer.

One of the researchers was Vinit Desai, an assistant professor at the University of Colorado Denver Business School. He worked with Peter Madsen from the Marriott School of Management at Brigham Young University in Utah.

They did not find much long-term "organizational learning" from success. It is possible, they say. But Professor Desai says they found that knowledge gained from failure lasts for years. He says organizations should treat failures as a learning opportunity and not try to ignore them.

The study looked at companies and organizations that launch satellites--and other space vehicles. Professor Desai compared two shuttle flights.

In two thousand two, a piece of insulating material broke off during launch and damaged a rocket on the Atlantis. Still, the flight was considered a success.

Then, in early two thousand three, a piece of insulation struck the Columbia during launch. This time, the shuttle broke apart on re-entry and the seven crew members died. NASA officials suspended all flights and an investigation led to suggested changes.

Professor Desai says the search for solutions after a failure can make leaders more open-minded. He points to airlines as an example of an industry that has learned from failures in the past.

He advises organizations to look for useful information in small failures and failures they avoided. He also urges leaders to encourage the open sharing of information. The study appeared in the Academy of Management Journal.

The mistakes we learn from do not have to be our own. We recently asked people on our Facebook page to tell us a time they had done something really silly.

Fabricio Cmino wrote: Not long ago I wanted to watch TV, but it wouldn't turn on, so I did everything I could to start it. Thirty minutes later my mum showed up and, passing by, said to me "Did you try plugging it'? I'm just dusting, Mum!"So she wouldn't notice how dumb I am sometimes!

Bruno Kanieski da Silva told about a time he looked everywhere for his key. It was in hispocket. He wrote: I always promise I will never do it again, but after-a few weeks,where is mywallet? For sure it will be in a very logical place. What are the answers to this following set of questions: 1. Who headed the study?
2. What does he want to prove?
3. How long does this type of learning last?
Answer: 1. Vinit Desai
2. He says organizations should treat failures as a learning opportunity and not try to ignore them.
3. lasts for years.

(CNN) -- They share the same surname -- Djokovic -- but for now at least, that is where the similarity ends.

Novak is at the pinnacle of his sport and was the center of attention in Dubai after completing in his first victory since winning the Australian Open in January.

At 20, Marko is four years younger, and 868 places further down the rankings -- and on Monday he slumped to an opening-round defeat in front of his elder sibling.

Djokovic senior was on hand to watch his brother's elimination, at the hands of Russian qualifier Andrey Golubev, but says that Marko can make his mark in the upper echelons of the game.

Del Potro too strong for Llodra in Marseille final

"He has to face the pressure of having the Djokovic surname," Novak said in quotes carried by AFP.

"He's trying to fight with his mind more than with his game. When he is able to focus on that and not on his doubts he can become a world-class player."

He admitted it was tough to watch Marko's 6-3 6-2 reverse. "It was difficult for me to sit courtside," he said. "I have not done it too much.

"At least when I'm playing I know what's going on. But I was happy my brother got a wild card. He is not at his level yet, but he's getting there."

As for Marko, he said there were plenty of positives and negatives to being the brother of the world's No. 1 player. What are the answers to this following set of questions: 1. did someone win something?
2. who?
3. what did he win?
4. where did the event take place?
Answer: 1. Yes
2. Novak
3. his first victory since winning the Australian Open
4. Marseille

Unlike the Spanish milled dollar the U.S. dollar is based upon a decimal system of values. In addition to the dollar the coinage act officially established monetary units of mill or one-thousandth of a dollar (symbol ), cent or one-hundredth of a dollar (symbol ), dime or one-tenth of a dollar, and eagle or ten dollars, with prescribed weights and composition of gold, silver, or copper for each. It was proposed in the mid-1800s that one hundred dollars be known as a union, but no union coins were ever struck and only patterns for the $50 half union exist. However, only cents are in everyday use as divisions of the dollar; "dime" is used solely as the name of the coin with the value of 10, while "eagle" and "mill" are largely unknown to the general public, though mills are sometimes used in matters of tax levies, and gasoline prices are usually in the form of $X.XX9 per gallon, e.g., $3.599, sometimes written as $3.59910. When currently issued in circulating form, denominations equal to or less than a dollar are emitted as U.S. coins while denominations equal to or greater than a dollar are emitted as Federal Reserve notes (with the exception of gold, silver and platinum coins valued up to $100 as legal tender, but worth far more as bullion). Both one-dollar coins and notes are produced today, although the note form is significantly more common. In the past, "paper money" was occasionally issued in denominations less than a dollar (fractional currency) and gold coins were issued for circulation up to the value of $20 (known as the "double eagle", discontinued in the 1930s). The term eagle was used in the Coinage Act of 1792 for the denomination of ten dollars, and subsequently was used in naming gold coins. Paper currency less than one dollar in denomination, known as "fractional currency", was also sometimes pejoratively referred to as "shinplasters". In 1854, James Guthrie, then Secretary of the Treasury, proposed creating $100, $50 and $25 gold coins, which were referred to as a "Union", "Half Union", and "Quarter Union", thus implying a denomination of 1 Union = $100. What are the answers to this following set of questions: 1. Is the US dollar on a decimal system?
2. What country's dollar is not?
3. What is a mill?
4. And a cent?
5. And the dime?
6. What's the symbol for a mill?
7. And that for cent?
8. How much is an eagle?
9. What are these coins made of?
10. When was making $100 as a union proposed?
11. Were union coins made?
12. Were there patterns for it?
13. What about for the half union?
14. When are mills used in regular life?
15. When else?
16. How are values less than a dollar given out?
17. Are there one dollar coins?
18. Are they common?
19. What was occasionally issued for values under a dollar?
20. How much is a double eagle?
Answer:
1. yes
2. Spain
3. 1/1000 of a dollar
4. 1/100
5. 1/10
6.
7.
8. ten dollars
9. gold, silver, or copper
10. mid-1800s
11. no
12. no
13. yes
14. tax levies
15. gasoline prices
16. coins
17. yes
18. no
19. paper money
20. $20