Hasil Pencarian  ::  Simpan CSV :: Kembali

"This book celebrates the lesser-known inventions of such versatile innovators as James Watt, Alexander Graham Bell and Edmond Halley. Includes detailed illustrations and much more. James Watt, is known for inventing the steam engine, yet most people do not know that he also invented the copier. Alexander Graham Bell of course invented the telephone, but only few know that he invented artificial breathing equipment, a prototype of the ‘iron lung’. Edmond Halley, whose name is associated with the comet that visits earth every 75 years, produced the first mortality tables, used for life insurances. "