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History of Rocketry Ancient Rockets Rockets for Warfare - ppt download

History of Rocketry Ancient Rockets Rockets for Warfare - ppt download: Ancient Rockets B.C. to 17th Century Ancient Rockets B.C. to 17th Century The Dream to Fly Ever since humans first saw birds soar through the sky, they have wanted to fly. The ancient Greeks and Romans pictured many of their gods with winged feet, and imagined mythological winged animals. According to the legend of Daedalus and Icarus, the father and son escaped prison by attaching wings made of wax and feathers to their bodies. Unfortunately, Icarus flew too near the sun, and the heat caused the wax and feathers to melt. The feathers fell off, and Icarus plummeted to the sea. Daedalus landed safely in Sicily. Hero’s Engine About 100 BC, a Greek inventor known as Hero of Alexandria came up with a new invention that depended on the mechanical interaction of heat and water. He invented a rocket-like device called an aeolipile. It used steam for propulsion. Hero mounted a sphere on top of a water kettle. A fire below the kettle turned the water into steam, and the gas traveled through the pipes to the sphere. Two L-shaped tubes on opposite sides of the sphere allowed the gas to escape, giving a thrust to the sphere, causing it to rotate.
cikguhairulpelangi 9w2cbp cikguhairulpelangi 9w2cbp Author

Mesej

Abu Ad Darda lalu berkata, "Aku mendengar Rasulullah SAW bersabda: "Barangsiapa melalui jalan untuk menuntut ilmu, maka Allah akan mempermudahnya jalan ke syurga. Sungguh, para Malaikat merendahkan sayapnya sebagai keredhaan kepada penuntut ilmu. Penduduk langit dan bumi hingga ikan yang ada di dasar laut akan mendoakan keampunan kepada orang yang menuntut ilmu. Kelebihan serang alim dibanding ahli ibadah seperti keutamaan rembulan pada malam purnama atas seluruh bintang. Para ulama adalah pewaris para nabi, dan para nabi tidak mewariskan dinar dan dirham, mereka hanyalah mewariskan ilmu. Barangsiapa mengambilnya maka ia telah mengambil bahagian yang banyak." (HR Abu Daud No: 3157) Status: Sahih

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