Detail Coach Potatoes   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 406 no. 8826 (Mar. 2013), page SS4. Topik: Test Equipment; Wireless Access Points; Wireless Networks; Electromagnetism Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.75 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Human bodies act as dielectric materials, absorbing some of the electromagnetic radiation that passes through them. The mixture of water and salts in a human body is particularly good at attenuating signals in the 2.4GHz and 5.0GHz bands used for Wi-Fi networking. Wi-Fi is already in use aboard more than 1,600 planes that fly over the United States, so the problem is no longer academic. Until recently, firms had to use a combination of computer modelling and human testing in labs and cabins to simulate different conditions and determine how to design and position antennae. In December Boeing announced an alternative to human test subjects, in the form of sacks of spuds. When placed on aeroplane seats, potatoes turn out to affect Wi-Fi signals in much the same way that people do. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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