Talk:Harvey Fletcher

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Millican oil drop experiment[edit]

A link to his posthumous article [[1]]

Fletcher wrote an interesting article about his work on the Millican oil drop experiment that was published in Physics Today shortly after his passing. It would be good to include this link if you have it. --Drswenson 15:27, 5 February 2007 (UTC)[reply]

A full history of Fletcher's contributions was published in: Allen, J. B. (1996) "Harvey Fletcher's role in the creation of communication acoustics"; J. Acoust. Soc. Am., 99 (4) pp 1825--1839, April ([pdf]); Invited: Rewrite of material from preface of the 1995 ASA Edition of Fletcher's 1953 book, with some important additions on Fletcher's critical band. — Preceding unsigned comment added by Nellatnoj (talk • contribs) 05:22, 27 October 2013 (UTC)[reply]

WikiProject class rating[edit]

This article was automatically assessed because at least one WikiProject had rated the article as stub, and the rating on other projects was brought up to Stub class. BetacommandBot 09:53, 10 November 2007 (UTC)[reply]

Credit for the audiometer[edit]

Several others are credited with the audiometer, such as Prof. Hughes as mentioned here in 1879。 The lede will need correction or rewording to elaborate on what type of audiometer he invented. HarryZilber (talk) 02:42, 3 December 2009 (UTC)[reply]

I clarified this to say he invented the 2-A audiometer and added a source for that information. Is that sufficient? Should I find more information about the 2-A audiometer? Rwelean (talk) 18:39, 19 January 2016 (UTC)[reply]

Other inventions[edit]

[2] lists the top 100 most influential LDS notables, and list #7: "Harvey Fletcher - inventor of the hearing aid, stereophonic sound, the audiometer, more than 20 other inventions." Charles Edwin Shipp (talk) 22:39, 8 February 2012 (UTC)[reply]

Fletcher did not invent 'the first' electronic hearing aid. (That word 'first' is always risky.) See for example US patent #1343717, applied for on 06/11/1919 by one Earl C. Hanson, a naval engineer who created a seven pound, battery-powered device he called a Vactuphone. It used a Western Electric 205-A 'peanut tube'. (More here) On the other hand, the multi-tube hearing aid Fletcher made for Alfred Dupont (at some point in the 1920s) was not portable. WP article History of hearing aids suggests that "The first electric hearing aid, called the Akouphone, was created by Miller Reese Hutchison in 1898"; whether that's the case is not the question here. Twang (talk) 00:30, 22 November 2015 (UTC)[reply]

A picture of professor Harvey Fletcher would be good[edit]

Either an action photo in the lab,or a portrait-picture would be nice. Charles Edwin Shipp (talk) 23:06, 3 January 2014 (UTC)[reply]

Agreed. I'd love to get the photo from this article, but the other photos from the U of U special collections appear to be copyright by the Utah State Historical Society. Some of the other photos on the web might be old enough to be in the public domain though? Rwelean (talk) 20:19, 19 January 2016 (UTC)[reply]