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And certainly We have made strongholds in the heaven and We have made it fair seeming to the beholders. 16 And We guard it against every accursed Shaitan, 17 Except him (devil) that gains hearing by stealing, he is pursued by a clear flaming fire. 18 And the earth - We have spread it out wide, and placed on it mountains firm, and caused [life] of every kind to grow on it in a balanced manner, 19 And we have given unto you livelihoods therein, and unto those for whom ye provide not. 20 And there is not a thing, but with Us are the stores thereof. And We send it not down except in a known measure. 21 And We sent the winds that relieve the clouds’ burden, therefore caused water to descend from the sky, then give it to you to drink; and you are not at all its treasurers. 22 Lo! and it is We, even We, Who quicken and give death, and We are the Inheritor. 23 And assuredly We know those of you who have gone before and those who will come hereafter. 24 Indeed your Lord only will raise them all on the Day of Resurrection; indeed only He is Wise, All 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.