4 ms·
The point is, lots of inventions are not mentioned. This makes the sample size taken, too small. So, the conclusion made in this article might not be accurate.
by azazqadir 11y ago
The point is, lots of inventions are not mentioned. This makes the sample size taken, too small. So, the conclusion made in this article might not be accurate.
- DonaldFisk 11y agoThe inventions mentioned by perlgeek and karmacondon don't change things much: transistor (Bardeen 39, Brattain 47); laser: (Townes 43, Shawlow 37); IC (Kilby 34); microscope (unknown). Telescope (Lippershey 38). Phonograph (Edison 30); light bulb (Swan 32). The mean is 37.5. I thought I'd also see how my own, admittedly very minor, inventions (http://web.onetel.com/~hibou/Patents.html http://web.onetel.com/~hibou/Patents.html) fit into the pattern. Patents were filed when I was 32, 36, 36, 39, 44, and 55. So, 40.3, and that can only change upwards.
- jrapdx3 11y agoArguably the first US patent for a transistor, specifically the field effect transistor, was awarded in 1926 to Julius Lilienfeld, though the invention was not implemented back then. The later developers of transistors (Shockley, et.al.) built model devices using the ideas in these patents though never referenced or credited Lilienfeld's work. However, the later work was taken in a different direction and avoided conflict with the earlier patents. Lilienfeld went on to invent the electrolytic capacitor in 1931 when he was 51 years old. He was 44 years old when he patented the FET. This is very much in line with the other data.