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Solar electric propulsion (SEP) is the use of solar cells in conjunction with electric thrusters to drive a spaceship through space. The European Space Agency (ESA), the Japanese Space Agency (JAXA), the Indian Space Research Organization (ISRO), and NASA have…
What Is a Black Hole? A black hole is a vicinity of space time wherein gravity is so sturdy that not anything — no debris or maybe electromagnetic radiation inclusive of light — can break out from it. The idea…
A helicopter is a sort of rotorcraft which elevates, and thrusts are provided through horizontally-spinning rotors. This lets in the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes permit helicopters…
The water cycle, additionally referred to as the hydrologic cycle or the hydrological cycle, is a biogeochemical cycle that describes the non-stop motion of water on, above and beneath the ground of the Earth. The mass of water on Earth…
Class 7-Download Free Books Class 7 | Punjab Textbook Board: It is necessary for students to well prepare for their annual exams in middle Standard classes before moving on to higher classes (Class 9, Class 10). At this site www.Quranmualim.com…
KPK (Khyber Pakhtunkhwa) Class 6 is an important role of a student’s life. In this class six, the students are introduced with new concepts, new chapter which prepare them for higher classes studies. Students need to learn the basic concepts…
A Moon landing is the advent of a spacecraft at the ground of the Moon. This consists of each crew and robot missions. The first human-made item to the touch the Moon becomes the Soviet Union’s Luna 2, on thirteen…
How is light formed is not a puzzle now a days. Lightning is a clearly going on electrostatic discharge at some stage in which electrically charged area, each within the surroundings or with one at the ground, briefly equalize themselves,…
Flying in the air has been the unfinished longing of the human beings since time immemorial. Many attempts have been made to make this wish fact but were not awarded in term of physical shape until the Right Brothers. They…
An aircraft in flight is acted on via way of means of 4 forces: carry, the upward performing force; gravity, the downward performing force; thrust, the ahead performing force; and drag, the backward performing force (additionally referred to as wind…
An area station additionally referred to as an orbital station or an orbital area station, is a spacecraft able to assisting a human group in orbit for a prolonged duration of time, and is consequently a form of station habitat.…
The Great Wall of China is a chain of fortifications that have been constructed throughout the ancient northern borders of historical Chinese states and Imperial China as safety towards diverse nomadic evaders from the Eurasian Steppe. Map of Great Wall…
مقدمة ابن خلدون: ابن خلدون من أكثر مؤرخي العالم الإسلامي مصداقية. كتب التاريخ في كتاب المسمى. المقدمة تعني مقدمة لبعض الموضوعات. كان التقليد في وقت سابق من التاريخ أن الكتب كتبت بنفس الشكل. وقد تم ذلك لإعطاء تفاصيل عن بعض…
Ibn al-Haytham Alhazen: ابن الهيثم الحسن: ابن الهيثم مؤسس ورائد العلم الحديث. لقد كان الرسول الأكبر لأهمية التجارب لإثبات النظريات التي اعتبرها العلماء اليونانيون أقل من القيم والعظمة. يُعرف ابن الهيثم في أوروبا والعالم الحديث باسم الحكيم والحاسم أو الحازم.…
Men under the Sun: كان غسان كنفاني كاتبًا عظيمًا وكتب بعض الروايات المتميزة التي نالت له شهرة طويلة الأمد ليس فقط في البلدان العربية ولكن أيضًا في الدول الأوروبية حيث تتم قراءة العمل الأدبي الجيد وتقديره. رواية “رجال في الشمس”…
Diary Of a Wimpy Kid: كان الاحتفاظ بمذكرات مصدر إلهام شخصي وتحفيز. سجل الحياة اليومية يجلب العديد من الأحداث المثيرة للاهتمام والأحداث غير المتوقعة خلال حياة المرء. كل يوميات هي سجل ومرآة للشخص الذي هو في مأوى لحفظ وتدوين كل…
Ancient Egypt: The land of Egypt has always been the place of attraction for the visitors and the writes of the entire world. Associated with the strange myths and magic, the Egyptian kingdom is one of the oldest kingdoms. Even…
: أبو عبد الله محمد بن إدريس الشافعي المطلبي القرشي (150-204 هـ / 767-820 م) هو أحد الأئمة الأربعة في المذهب السني وهو صاحب المذهب الشافعي للفقه الإسلامي. وهو الإمام الشافعي ، وهو أيضًا منحدر من شيخ الإسلام. وكان أيضًا…