The speed of forgetting depends on a number of factors such as the difficulty of the learned material (e.g. how meaningful it is), its representation and physiological factors such as stress and sleep. Furthermore higher original learning also reduces forgetting. The rate differs little between individuals.

Perhaps the most important discoveries are those which relate to the appropriate distribution of the periods of study...Acts of revision should be spaced in gradually increasing intervals, roughly intervals of one day, two days, four days, eight days, and so on.

The forgetting curve hypothesizes the decline of memory retention in time. This curve shows how information is lost over time when there is no attempt to retain it.

From 1880 to 1885, Hermann Ebbinghaus ran a study about the memorisation of nonsense syllables, such as "WID" and "ZOF" by repeatedly testing himself after various time periods and recording the results. He plotted these results on a graph creating what is now known as the "forgetting curve".

Murre and Dros present a successful replication of Ebbinghaus’ classic forgetting curve from 1880 based on the method of savings. The forgetting curve has indeed been replicated and that it is not completely smooth but most probably shows a jump upwards starting at the 24 hour data point.

Spitzer tested 1939 the effects of a type of spaced repetition with over 3600 students who were learning science facts and showed that spaced repetition was effective.

Spaced practice is a feasible and cost-effective way to improve the effectiveness and efficiency of learning, and has tremendous potential to improve educational outcomes.

Memory formation becomes more effective with longer inter-stimulus intervals between training sessions because of decreasing temporal overlap between successive, short-lived learning traces.

I came to dedicate my life to opening space to the average person and crafting designs for new spaceships that could take us far from home. But since Apollo ended, such travels were only in our collective memory.

Our championship committee pledged to review entry conditions and to assess how women golfers might compete on equal terms with men for a place in the Open.

In the past, geneticists have looked at so-called disease genes, but a lot of people have changes in their genes and don't get these diseases. There have to be other parts of physiology and genetics that compensate.

The greatest gift is a portion of thyself.

I modeled from the time I was 15 until I was 20.

Doing any job for too long limits your possibilities.

I built a baseball field in the lower part of our property and I'm always working on that. I got a wheelbarrow, a pick and a shovel, and I started to build a baseball field during writers' strike. We have boys and girls come over and we have clinics in the spring. It's called The Strike because it's named for the writers' strike.

Life is the flower for which love is the honey.

Have a good cry wash out your heart. If you keep it inside itll tear you apart. Sometimes you lose but youre gonna win if you just hang in.

I don't want to be alone, I want to be left alone.

It must have been so impossible to think about it and dare to do that, so they feel compassionate for her. I don't think the movie would work otherwise.

I have to have breakfast, and breakfast has to be eggs, whether in omelet form, hard-boiled, or over-easy.

Women's tennis is two sets of rubbish that lasts only half an hour.

I love the unknown. I love the discovery of what will be happening and just kind of sitting back and not knowing.

The most important thing is to enjoy your life - to be happy - it's all that matters.

I am my own superhero.

I know I have this level of celebrity, of fame, international, national, whatever you want to call it, but it's a pretty surreal thing to think sometimes that you're in the middle of another famous person's life and you think to yourself, 'How the hell did I get famous? What is this some weird club that we're in?'

I love playing characters with different accents. It's a lot of fun.

In many ways, when you're young and sexy, it's very annoying to be whistled at and to have someone always trying to attract your attention, but now when it happens I find myself registering the fact almost warmly.

Art is a kind of illness.

I think most defense attorneys honestly believe the principle that says, 'Better 10 guilty go free than even one possibly innocent person be convicted.'

It is vital that the United States maintains open lines of communication with our allies. We must assure them of our commitment to eradicating global terrorism wherever it may reside or wherever it's given haven.

I have lost friends some by death...others by sheer inability to cross the street

While there are no easy solutions to this problem, the Deficit Reduction Act gets us started in the right direction by beginning with the most obvious, commonsense reforms to save taxpayer dollars.