الخميس، يناير 20
الخميس، يناير 13
صدق الله... صدق الله العظيم... اللهم اجز عنا سيدنا محمد خير ما يجزي نبى عن أمته
قال الله تعالى في قرآنه الكريم:
"هُوَ ٱلَّذِى يُرِيكُمُ ٱلْبَرْقَ خَوْفًا وَطَمَعًا وَيُنشِئُ ٱلسَّحَابَ ٱلثِّقَالَ" (الرعد ١٢)
“It is He who shows you lightening, [causing] fear and aspiration, and generates the heavy clouds” (Holy Quran; 13:12).
Have you ever wondered how much does a cloud weigh? As per research, an average cumulus cloud weighs an incredible 500,000 kg (or 1.1 million pounds!) - the equivalent weight of 100+ elephants - a lot more than you think right! Clouds may look so light and fluffy, but the fact is that they are actually quite heavy. But the reason why cloud doesn't fall on your head although it weighs tons is because the droplets that formed clouds are so small and can be spread out over miles. Since air has weight it must also have density, which is the weight for a chosen volume, such as a cubic inch or cubic meter. If clouds are made up of particles, then they must have weight and density. The key to why clouds float is that the density of the same volume of cloud material is less than the density of the same amount of dry air. Just as oil floats on water because it is less dense, clouds float on air because the moist air in clouds is less dense than dry air. We still need to answer the question of how much a cloud weighs. To confuse things more, the weight depends on how you define it: (a) The weight of the water droplets in the cloud; (b) The weight of the water droplets plus the weight of the air (mostly above the cloud, pressing down). We're only going to look at the weight of the actual cloud particles. One estimate of cumulus cloud density is given at https://www.sciencealert.com/this-is-how-much-a-cloud-weighs, as a density of about 0.5 gram per cubic meter. A 1 cubic kilometer (km3) cloud contains 1 billion cubic meters.
Doing the math: 1,000,000,000 x 0.5 = 500,000,000 grams of water droplets in our cloud. That is about 500,000 kilograms or 1.1 million pounds (about 551 tons). But, that "heavy" cloud is floating over your head because the air below it is even heavier— the lesser density of the cloud allows it to float on the dryer and more-dense air.
صدق رسول الله محمد صلى الله عليه وآله...كن رجلاً أمياً يرعى الغنم في صحراء قاحلة، فكيف لمثله أن يتفكر في وزن سحاب يمر فوق رؤوس ملايين البشر ولا يلقي له بالاً؟،
حتى ولو أن شاعراً نظر في السماء والسحاب، فأقصى ما يأتي به عقله أن يتغنى بجماله أو ظله أو جمال السماء دون أن يخطر بباله وزن ولا كثافة ولا كتله...فليس من تفسير سوى أن من أوحى للنبي محمد هذا الكلام هو خالق هذا الكون العظيم وصدق الله حين قال:
"لَخَلْقُ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ أَكْبَرُ مِنْ خَلْقِ ٱلنَّاسِ وَلَٰكِنَّ أَكْثَرَ ٱلنَّاسِ لَا يَعْلَمُونَ" غافر: 57
Muhammad, the Messenger of Allah, may God’s prayers and peace be upon him and his family, was right...Being an illiterate man who used to herd sheep in a barren desert. How can someone like him contemplate the weight of clouds passing over the heads of millions of people since millions of years without paying any attention to such thing?, Even if a poet looks at the cloud in the sky, as much as his mind can bring him is to sing its beauty, shadow, or the beauty of the sky without ever thinking about weight, density, or mass...there is no explanation other than that whoever revealed these words to the Prophet Muhammad is the Creator of this great universe. Allah (God) is truthful when he says in the Holy Quran: “The creation of the heavens and earth is greater than the creation of mankind, but most of the people do not know” (The Holy Quran 40:57).
السبت، يناير 8
الأربعاء، يناير 5
Breaking news
The FDA has approved tralokinumab (Adbry) for the treatment of moderate to severe atopic dermatitis (AD) in adults whose disease is not well controlled with topical prescription therapies or when those therapies are not advisable. Administered SC, tralokinumab is a fully human IgG4 monoclonal antibody that specifically binds to interleukin-13, a key driver of underlying inflammation in AD. The drug, which has been developed by LEO Pharma, comes as a single-dose (150 mg) prefilled syringe with needle guard. Between 25% and 33% of patients treated with tralokinumab 300 mg every other week achieved an improvement of 75% or more in the Eczema Area and Severity Index score (EASI-75) versus 13% and 10% with placebo. It can be used with or without topical corticosteroids. Upper respiratory tract infections (23.8%), and conjunctivitis (13.6%) were the most reported side effects (Jan, 2022).
الأحد، يناير 2
السبت، يناير 1
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