MbrlCatalogueTitleDetail

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عن التقويم الشمسي
عن التقويم الشمسي
Hey, we have placed the reservation for you!
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By the way, why not check out events that you can attend while you pick your title.
You are currently in the queue to collect this book. You will be notified once it is your turn to collect the book.
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عن التقويم الشمسي
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Do you wish to request the book?
عن التقويم الشمسي
عن التقويم الشمسي

Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
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عن التقويم الشمسي
عن التقويم الشمسي
Journal Article

عن التقويم الشمسي

2021
Request Book From Autostore and Choose the Collection Method
Overview
سلط المقال الضوء على التقويم الشمسي. تحدث المقال عن السنة الشمسية والتقويم الميلادي؛ فالسنة الشمسية تساوي (365.25) يوما تقريبًا أي (52 أسبوعًا)؛ وبسبب اليوم الزائد على الأسابيع تبدأ السنة التالية بتكرار أو توالي أو تعاقب أيام رؤوس السنوات كل ( 7 سنوات) ، ثم إن تراكم ربع اليوم (0.25 يوم) ينشأ عنه يوم كامل كل (4 سنوات) يضاف إلى شهر شباط؛ فيصبح (29 يومًا) ويجعل السنة كبيسة (366 يومًا)، أما السنوات الكبيسة هي التي يقبل العدد المؤلف من آحادها وعشراتها القسمة على (4)، ولولا وجودها لما كانت سنوات الدهر كلها متماثلة تمامًا، وتوالى أيام سنة كبيسة أو بسيطة بتواريخها يتكرر كل (28 سنة)، واختتم المقال بالإشارة إلى أن المجالات الزمنية التي تبدأ بسنة كبيسة تنتهي بسنة عادية. كُتب هذا المستخلص من قِبل دار المنظومة 2022