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And We have placed within the heaven great stars and have beautified it for the observers. 16 And (moreover) We have guarded them from every cursed devil: 17 But any that gains a hearing by stealth, is pursued by a flaming fire, bright (to see). 18 And the earth have We spread out, and placed therein firm hills, and caused each seemly thing to grow therein. 19 And We have provided therein means of living, for you and for those whom you provide not [moving (living) creatures, cattle, beasts, and other animals]. 20 And there is not of aught but with Us are the treasures thereof, and We send it not down save in a measure known 21 We send the winds fertilizing, and We send down out of heaven water, from which you drink and you are not its treasurers. 22 And indeed, it is We who give life and cause death, and We are the Inheritor. 23 And certainly We know those of you who have gone before and We certainly know those who shall come later. 24 And verily thy Lord! He will gather them, and verily He is Wise, Knowing. 25
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ملاحظات وتعليمات
Notes and Instructions
كيف تعمل منظومة تمارين الحفظ؟ عند أدنى مستوى 0، تكون كل الكلمات ظاهرة. بينما يُخفي أعلى مستوى 9 كل الكلمات. فكيف تعمل المستويات المتوسطة، مثل 3، على سبيل المثال؟ قد تعتقد بأن المنظومة تخفي 3 من كل تسع كلمات بدقة. ليس تماما! في المستوى 3، لكل كلمة فرصة اختفاء بنسبة 3 من 9، و6 من 9 لتكون ظاهرة. بمعنى آخر، من الممكن، ولكن باحتمال شبة معدوم، أن تكون جميع كلمات المستوى 3 مخفية، أو أن تكون جميعها ظاهرة! وكذلك أيضًا، ففي المستويات المتوسطة، وبما يتناسب مع مستوى الصعوبة، يمكن أن تكون المخابئ غير كاملة أو شفافة جزئيًا بحيث تظهر الكلمات جزئيًا تحتها.
How does the memorization exercise algorithm work? At the lowest level 0, all words are visible. While the highest level 9 hides all words. What about at mid-level, like 3, for example? You might think that the algorithm hides precisely 3 out of every nine words. Not quite! At level 3, each word has a 3 out of 9 chance to hide, and 6 out of 9 to be visible. In other words, it is possible, but highly unlikely, for all words at level 3 to be hidden, or, that all of them to be visible! Also, at mid-levels, and in proportion to the difficulty level, hideouts can be partially incomplete or transparent so that words may be partially visible underneath.