000			01089nam a2200157 4500
999			_c4955 _d4955
020			_a817236279X
040			_cCUS
082			_a828 _bPHO/H
245			_aHow?/ _cedited by Bal Phondke
250			_a2nd ed.
260			_aNew Delhi : _bNational Institute of Science Communication and Information Resources (CSIR), _c2004.
300			_a100 p.; 23 cm. : _bcol. ill.
505			_aHow are computer chips made ? -- How do radars work? -- How do cordless phones work? -- How is colour TV picture produced? -- How do fire alarms work? -- How do fire extinguishers work -- How do hovercrafts move? -- How do lie detectors work? -- How do zippers work? -- How are musical instruments tuned? -- How do storage batteries work? -- How do microwave ovens work? -- How do gas masks work? -- How do loudspeakers work? -- How do aeroplanes fly? -- How do helicopters remain stationary in mid-air? -- How do parachutes work? -- How do submarines dive and surface? -- How do common locks work -- How do metal detectors work? -- How do night-vision glasses work?
650			_aScience Fiction
650			_aComputer
650			_aMicrowave ovens
700			_aPhondke, Bal, ed.
942			_cWB16