Detail Airships as satellites: Bladder control   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 395 no. 8681 (May 2010), page 79. Topik: Balloons; Stratosphere; Helium Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.60 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel ACCORDING to the old adage, what goes up must come down. But in the case of balloons, the descent sometimes comes sooner than expected. Although helium-filled weather balloons regularly launch instruments high into the stratosphere, at altitudes of 20km (65,000 feet) the air is 15 times less dense, causing the balloons to expand and ultimately burst. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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