Both Mozart and Beehoven, it is said, upon discovering Bach's music, thought of them selves as failures (I paraphrase, and can't find the source). Perfection of composition - Bach, Bach was the first computer. Easy of creation. Bach whipped out masterpieces on a weekly basis (because it was his job as kapellmeister).
Ives W. McGaffney, of Chicago, created a mechanical machine in 1868. Hubert Cecil Booth, an English engineer, built an electric vacuum cleaner in 1901. Daniel Hess invented the vacuum cleaner in 1860. <b>Answer </b><br />Ives W. McGaffney, of Chicago, created a mechanical machine in 1868. <br /> Hubert Cecil Booth, an English engineer, built an electric vacuum cleaner in 1901. <br /><br /><br /><b>Answer </b><br />Daniel Hess invented the vacuum cleaner in 1860.
AT A GLANCE: In 1860, Joseph Swan was able to demonstrate a working device, and obtained a UK patent covering a partial vacuum, carbon filament incandescent lamp. However, the lack of good vacuum and an adequate electric source resulted in a short lifetime for the bulb and an inefficient light.