Ernest Wilmot Guptill (5 September 1919 – 20 March 1976) was a Canadian physicist . He spent his academic career at Dalhousie University , where he was department head for ten years. He was co-inventor of the slotted waveguide antenna.
14-658: Guptill is the surname of the following people: Ernest Wilmot Guptill (1919–1976), Canadian physicist Martin Guptill (born 1986), New Zealand cricketer Michael Guptill-Bunce (born 1989), New Zealand cricketer, cousin of Martin Nancy Guptill , (1941–2020), Canadian politician Scott D. Guptill (1889–1949), Canadian politician Stephen Guptill , American journalist and elderly advocate See also [ edit ] Watson-Guptill , American publisher of instructional books in
28-481: A Master of Science degree, and then went to McGill University for his doctoral studies. He was awarded a PhD by McGill in 1946. His doctoral dissertation was entitled A Linear Accelerator for Electrons . Between 1942 and 1944 Guptill worked on radar research, in which McGill was collaborating with the Canadian National Research Council as part of the war effort. He was the co-inventor of
42-467: A United States patent for the device, described as a "directive antenna for microwaves", in 1951. Guptill began teaching at Dalhousie University in 1947. After a sabbatical year at the University of Leiden he was named head of Dalhousie's physics department, a position he held for ten years before returning to teaching and research full-time. He was described as "that treasure, an excellent researcher and
56-515: A gifted teacher". Among his research specialties were high frequency sound waves in liquid and low temperature physics. Guptill, an experienced sailor, died in a boating accident on 20 March 1976. He and a friend were out in rowboat on the Northwest Arm in Halifax Harbour when the boat capsized. Guptill rescued his friend, a non-swimmer, and helped him to cling to the overturned boat, but by
70-472: Is different from Wikidata All set index articles Ernest Wilmot Guptill Guptill, the son of a fisherman, was born in the village of Grand Harbour on Grand Manan Island . He attended Acadia University in Wolfville , Nova Scotia as an undergraduate. After earning an Honours Bachelor of Science degree in physics from Acadia, he studied at the University of Western Ontario , where he earned
84-603: The slotted waveguide antenna. The antennas were first used for the air defense of Great Britain. After the war the technology was adapted for use in ocean-going vessels, including small fishing boats. It was also used in NORAD 's Pinetree Line , a series of radar stations built in Canada and the United States in the 1950s for the purpose of detecting Soviet bombers approaching North America. Guptill and co-inventor W.H. Watson were granted
98-639: The "Sandwich River" and also the "Hawkes River." The Mi'kmaq people attacked the British blockhouse on the Northwest Arm numerous times during Father Le Loutre's War . In 1751, there were two attacks on blockhouses surrounding Halifax. Mi'kmaq attacked the North Blockhouse (located at the north end of Joseph Howe Drive) and killed the men on guard. They also attacked near the South Blockhouse (located at
112-584: The Fyfe Breakwater after the late local naturalist TLC Ratt-Fyfe. There is a public beach (the only one on the Arm) located at Sir Sanford Fleming Park which has only recently been deemed safe for swimming since the Harbor Solutions Project began operations in 2008. The Mi'kmaq Nation called this water body "Waygwalteech" which translates to "salt water all the way up." Early English settlers called it
126-481: The arts [REDACTED] Surname list This page lists people with the surname Guptill . If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name (s) to the link. Retrieved from " https://en.wikipedia.org/w/index.php?title=Guptill&oldid=975099905 " Category : Surnames Hidden categories: Articles with short description Short description
140-460: The south end of Joseph Howe Drive), at a sawmill on a stream flowing out of Chocolate Lake into the Northwest Arm. They killed two men. ( Map of Halifax Blockhouses ) In 1753, when Lawrence became governor, the Mi'kmaq attacked again upon the sawmills near the South Blockhouse on the Northwest Arm, where they killed three British. The Mi'kmaq made three attempts to retrieve the bodies for their scalps. It
154-659: The time help arrived both men had died of hypothermia . He is commemorated by the annual "E.W. Guptill Memorial Lecture" series in Dalhousie's Department of Physics and Atmospheric Science. Northwest Arm The Northwest Arm , originally named Sandwich River, is an inlet in eastern Canada off the Atlantic Ocean in Nova Scotia 's Halifax Regional Municipality . Part of Halifax Harbour , it measures approximately 3.5 km in length and 0.5 km in width and defines
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#1732854901307168-634: The western shoreline contains the Dingle Memorial Tower which, in 1908, commemorated the 150th anniversary of the establishment of responsible government in Nova Scotia, the first colony in the British Empire to do so. Deadman's Island Park commemorates American soldiers who died while imprisoned on the island during the War of 1812 . The Atlantic School of Theology also maintains its campus along
182-524: The western side of the Halifax Peninsula . The waterway is oriented along a bearing of 135° (southeast) and 315° (northwest). The Northwest Arm contains several small islands including Melville Island, home of the Armdale Yacht Club , and Deadman's Island , at the northwestern end near Armdale . There is a large breakwater, constructed from slate bedrock, located adjacent to South Street called
196-562: Was officially named the North West Arm on 1 March 1921 and it was changed to Northwest Arm on 4 April 1933. Much of the shoreline of the Northwest Arm, referred to locally as "the Arm," is fronted by private residences. The Northwest Arm is the location of several parks. Point Pleasant Park at the southern entrance to the Arm on the Halifax Peninsula. Sir Sandford Fleming Park on
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