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Abby/Jimmy/Henry - Come To Life
Abby/Jimmy/Henry - Come To Life
Published: 2009/08/11
Channel: MrSpevin
Charles HENRY Live Casino de Deauville
Charles HENRY Live Casino de Deauville
Published: 2016/06/13
Channel: Sweet Lies
Ken Dixon vs Brandon Scott
Ken Dixon vs Brandon Scott
Published: 2017/04/24
Channel: Ken Dixon
Blues Legends Diaporama 1/2
Blues Legends Diaporama 1/2
Published: 2010/05/14
Channel: zeepoch
Harper
Harper's Island- Top 25 Characters
Published: 2010/02/10
Channel: 12sloana
Hedges Squiggle-Tasting
Hedges Squiggle-Tasting
Published: 2012/06/28
Channel: Christopher Fedosky
Sandy Sims and C.J. Thomas on Let
Sandy Sims and C.J. Thomas on Let's Get On The Same Page
Published: 2008/08/14
Channel: musiqinmyhead
Harpers Island-Magnificent
Harpers Island-Magnificent
Published: 2009/07/21
Channel: sharpshootkane
Dennis the Menace Reunion Interview Part 1 of 3
Dennis the Menace Reunion Interview Part 1 of 3
Published: 2011/09/30
Channel: producedinLA
Harper
Harper's Island - Pure Love
Published: 2011/01/08
Channel: FamaClamosa
Shattered | Henry Dunn.
Shattered | Henry Dunn.
Published: 2009/08/19
Channel: chrissiexmofo
Henry & Sully || This Is Why I
Henry & Sully || This Is Why I'm Hot
Published: 2009/11/14
Channel: MrsChloeButterfly
Chris Henry - Peak
Chris Henry - Peak
Published: 2016/09/27
Channel: Chris Henry
Judge Willie Lipscomb Jr. - Part II
Judge Willie Lipscomb Jr. - Part II
Published: 2007/08/20
Channel: Dan Diebolt
West Texas Blues by Charles Booker (1919, Blues piano)
West Texas Blues by Charles Booker (1919, Blues piano)
Published: 2015/05/01
Channel: RagtimeDorianHenry
Abby/Jimmy - Oh Gravity
Abby/Jimmy - Oh Gravity
Published: 2009/05/26
Channel: MrSpevin
Inside The Mind of Henry Dunn
Inside The Mind of Henry Dunn
Published: 2009/07/22
Channel: LadypenelopeSurvives
Harper
Harper's Island - Beautiful Dirty Rich - Lady Gaga
Published: 2010/04/22
Channel: TheClippah
Vindicated (AU) - Official Trailer
Vindicated (AU) - Official Trailer
Published: 2010/08/27
Channel: EmziJess
The Fantasticks by Tom Jones& Harvey Schmid
The Fantasticks by Tom Jones& Harvey Schmid
Published: 2009/01/10
Channel: Shalishasmcintosh09
Harper
Harper's Island - PromoPlot
Published: 2009/07/01
Channel: HarpersVids2009
Sunburst/Jubilation
Sunburst/Jubilation
Published: 2014/05/05
Channel: jostheemoes
Horny
Horny '98
Published: 2017/01/25
Channel: Chicago House Masterz - Topic
Study no. 15: Blues No. 1 - Christopher Norton - Piano Studies/Etudes 4
Study no. 15: Blues No. 1 - Christopher Norton - Piano Studies/Etudes 4
Published: 2016/01/03
Channel: Classical Sheet Music
Abby/Jimmy - Nothing But Love
Abby/Jimmy - Nothing But Love
Published: 2009/06/12
Channel: MrSpevin
CJ Thomason talks about 2620 Roadtrip 1st Segment
CJ Thomason talks about 2620 Roadtrip 1st Segment
Published: 2009/05/14
Channel: Jimmy Nelson
Religious Debate
Religious Debate
Published: 2010/07/12
Channel: Money Charts
harper
harper's island; what if jimmy died? (AU) // henry/abby/jimmy
Published: 2009/08/30
Channel: IMCRmy
my gay bro and other shit
my gay bro and other shit
Published: 2010/07/23
Channel: Brandon Miller
Sage Philips Speaks About Welterweight Wrestling iPPV 5-7-17
Sage Philips Speaks About Welterweight Wrestling iPPV 5-7-17
Published: 2017/05/03
Channel: Joe Dombrowski
SSW presents: ALL HALLOWS EVE | Live on YouTube
SSW presents: ALL HALLOWS EVE | Live on YouTube
Published: 2017/01/24
Channel: SSW Pro Wrestling Entertainment
Corey Harris - Take Me Back
Corey Harris - Take Me Back
Published: 2014/11/08
Channel: MyMoppet52
Cutting My ABC
Cutting My ABC's CHARLEY JORDAN, Blues Guitar Legend
Published: 2009/04/04
Channel: RagtimeDorianHenry
Heliograph
Heliograph
Published: 2014/11/17
Channel: Audiopedia
The Single Petal of a Rose - Chris Shuttleworth
The Single Petal of a Rose - Chris Shuttleworth
Published: 2015/06/24
Channel: Second State Media
Cristiano Ronaldo Vs Ronaldinho - Freestyle
Cristiano Ronaldo Vs Ronaldinho - Freestyle
Published: 2012/02/20
Channel: MrRemoomer
Corey Harris - Take Me Back.
Corey Harris - Take Me Back.
Published: 2013/12/23
Channel: Rifdy Rahmandhanu
Chloe&Cal + Trish&Henry + Abby&Jimmy - Set my heart free
Chloe&Cal + Trish&Henry + Abby&Jimmy - Set my heart free
Published: 2009/08/28
Channel: ElektraSkater
Harper
Harper's Island - Hoppipolla
Published: 2013/07/03
Channel: Wendy Darling
On the Way to Tibet (Cover)
On the Way to Tibet (Cover)
Published: 2012/03/05
Channel: Rain City Celtic
Rengaine (Composition) Ophélie
Rengaine (Composition) Ophélie
Published: 2011/06/04
Channel: Alceste Hypheurite
Harper
Harper's Island - Down
Published: 2010/07/30
Channel: xHeroGirlx
Telemann Fantasia for Violin Solo, Allegro: Cynthia Miller Freivogel
Telemann Fantasia for Violin Solo, Allegro: Cynthia Miller Freivogel
Published: 2010/06/06
Channel: Voices of Music
Ernie Hawkins  •  What
Ernie Hawkins • What'cha Gonna Do? • www.ErnieHawkins.com
Published: 2011/04/07
Channel: bluesadvice
The Clio Exchange-5 Minutes with Keter Betts   Part 3
The Clio Exchange-5 Minutes with Keter Betts Part 3
Published: 2009/03/31
Channel: Lou Phillips
Duc des Lombards - jazz jam, Paris France
Duc des Lombards - jazz jam, Paris France
Published: 2011/11/24
Channel: TheKlevagirl
Man of Steel   Teaser Trailer with Russell Crowe A HD
Man of Steel Teaser Trailer with Russell Crowe A HD
Published: 2012/08/05
Channel: Abradangelina
Animated Short-Film - "Pixels" - by Patrick Jean
Animated Short-Film - "Pixels" - by Patrick Jean
Published: 2010/04/30
Channel: GR4phiC4rNaGe
Cal U Fall 2011 Undergraduate Commencement Ceremony
Cal U Fall 2011 Undergraduate Commencement Ceremony
Published: 2012/02/07
Channel: California University of Pennsylvania
2012 Spring Undergraduate Commencement
2012 Spring Undergraduate Commencement
Published: 2012/08/02
Channel: California University of Pennsylvania
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Australian soldiers using a Mance heliograph in 1940

Sir Henry Christopher Mance,CIE (1840 – 21 April 1926), a British electrical engineer, was knighted for developing the heliograph and president of the Institution of Electrical Engineers. [1][2]

Born in Exeter, he was educated privately.

He joined the Persian Gulf Telegraph Department in 1863, and was employed on the laying of the first Persian Gulf submarine communications cable. In 1879, he was appointed electrician to the Department, which position he held throughout his working life. An inventive man, he was responsible for a number of important developments in the field of cable laying, testing and usage.

In 1869 he invented the heliograph, a wireless solar telegraph that signals by flashes of sunlight using Morse code reflected by a mirror[3]. The flashes were produced by momentarily pivoting the mirror[3]. Frustrated by Government lack of interest, he sent a number of his instruments to Lord Roberts for use during the second Afghan War, where the practical value of the invention was realised. It was subsequently adopted by military services worldwide and was still being used in World War II.

He was Vice-President of the Institution of Electrical Engineers from 1892 to 1896 and elected President in 1897. He was also a member of the Institution of Civil Engineers and the Physical Society.

He retired in 1885 but continued his interest in Electrical Engineering as Chairman of the Oxford Electric Company and board member of several other electrical companies. Practically blind for the last 10 years of his life, he learned to read Braille.

He was created a C.I.E. in 1883 and made a Knight Bachelor in 1885. [4][5]

He died in 1926. He had married Annie Sayer in 1874, and had three sons and two daughters. One son was Brigadier-General Henry Osborne Mance.

References[edit]

  1. ^ "Henry Christopher Mance". Graces Guide. Retrieved 16 July 2017. 
  2. ^ "The New President of the Institution of Electrical Engineers". The Electrical Review (999). 15 January 1897. p. 62. Retrieved 16 July 2017. 
  3. ^ a b War Office, General Staff (1911). Training Manual – Signalling, 1907 [ Reprinted, With Amendments, to 1st May, 1911]. London: His Majesty's Stationery Office. p. 64. Retrieved 16 July 2017. 
  4. ^ The India List and India Office List for 1905. p. 146. 
  5. ^ "Birthday Honours." Times [London, England] 6 June 1885: 7. The Times Digital Archive. Web. 13 June 2015

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