The 61st parallel north is a circle of latitude that is 61 degrees north of the Earth's equatorial plane. It crosses the Atlantic Ocean, Europe, Asia and North America. At this latitude the sun is visible for 19 hours, 16 minutes during the summer solstice and 5 hours, 32 minutes during the winter solstice. This latitude also roughly corresponds to the minimum latitude in which civil twilight can last all night near the summer solstice. (Wikipedia).
Bearings Example (1 of 2: Understanding the situation)
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From playlist Non-right-angled Trigonometry
Driving Downtown - Times Square 4K - New York City USA
Driving Downtown Streets - Seventh Avenue - Manhattan New York City New York USA - Episode 13. Starting Point: Seventh Avenue & 58th Street - https://goo.gl/maps/e1BHSBSVL112 . Seventh Avenue – co-named Fashion Avenue between West 26th Street and 42nd Streets, and known as Adam Clayton P
From playlist Location by City - New York City - J Utah
Solving Right Triangles - Part 2 Applications
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From playlist Trigonometry Introduction
Driving Downtown - Philadelphia 4K - USA
Top 10 Favorite Travel Channels on Youtube (3 of 10): Unique video format for those that want to travel. Check it out! - kees Colijn - https://www.youtube.com/channel/UC_dzDnUbyWGbuaUMcsnyRxA Driving Downtown Streets - Broad Street - Philadelphia Pennsylvania USA - Episode 3. Starting P
From playlist Location by Country - United States of America - J Utah
Driving Downtown 4K - Baltimore's Inner Harbor - USA
Driving Downtown Streets - Pratt Street - Baltimore Maryland USA - Episode 9. Starting Point: Pratt Street & Paca Street - https://goo.gl/maps/1XNEFsV3vX72 . Pratt Street is a major street in Baltimore. It forms a one-way pair of streets with Lombard Street that run west-east through dow
From playlist Location by Country - United States of America - J Utah
Driving Downtown - Toronto's Skyline 4K - Canada
Driving Downtown Streets - Front Street - Toronto Ontario Canada - Episode 61. Starting Point: https://goo.gl/maps/Z721ZaWM79S2 . Front Street is an east-west road in downtown Toronto, Ontario, Canada. First laid out in 1796, the street is one of the original streets of the Town of York.
From playlist Location by Continent - North America - J Utah
Driving Downtown - NYC Hell's Kitchen 4K - USA
Driving Downtown Streets - 9th Avenue - New York City New York USA Starting Point: 9th Avenue https://goo.gl/maps/vX2VSENfoto . Like the Upper East Side, the Upper West Side is an affluent, primarily residential area with many of its residents working in commercial areas of Midtown and Lo
From playlist Location by City - New York City - J Utah
DIRTY SECRETS of WW2: Men of the 10th Armored Division
Interviews with German & American tank commanders and solders explaining the operation in rare mechanized action footage of the siege and liberation of Bastogne city, Belgium.
From playlist Dirty Secrets of WW2
On Some Theories of Gauss Sums - Guy Henniart
Geometry and Arithmetic: 61st Birthday of Pierre Deligne Guy Henniart October 17, 2005 Pierre Deligne, Professor Emeritus, School of Mathematics. On the occasion of the sixty-first birthday of Pierre Deligne, the School of Mathematics will be hosting a four-day conference, "Geometry and
From playlist Pierre Deligne 61st Birthday
corresponding angles and straight lines - g5
using straight angles to find the values of different angles
From playlist Common Core Standards - 8th Grade
President Roosevelt's 61st Birthday (1943)
Full title reads: "PRESIDENT ROOSEVELT'S 61st BIRTHDAY". Washington D. C., United States of America (USA). In the White House - various shots of a group which includes Mrs Eleanor Roosevelt, wife of American President Franklin Delano Roosevelt, President's family and stars of the en
From playlist First Ladies of the USA | British Pathé
In Flight Scenery - Northwest Territories Canada and Alaska USA
The Northwest Territories (NWT; French: les Territoires du Nord-Ouest, TNO) is a territory of Canada. With a population of 41,462 in 2011 and an estimated population of 43,537 in 2013, the Northwest Territories is the most populous territory in Northern Canada.[6][8] Yellowknife became the
From playlist Planes
61st Edward H. Hume Memorial Lecture: A Kite Flies Against the Wind
The Council is pleased to present the 61st Edward H. Hume Memorial Lecture in Chinese Studies. Rana Mitter (Professor of the History and Politics of Modern China, University of Oxford) presented "A Kite Flies Against the Wind: Internationalism, identity, and ideology in the shaping of post
From playlist Council on East Asian Studies (CEAS)
Salesforce Tower: Building San Francisco's Vertical Village
San Francisco's Salesforce Tower is the first in a new generation of skyscrapers reshaping the city's skyline. For more by The B1M subscribe now - http://ow.ly/GxW7y Read the full story on this video, including images and useful links, here: http://www.theb1m.com/video/salesforce-tower-b
From playlist Skyscrapers - The B1M
Alexander Eskin - The SL(2,R) action on Moduli space
December 17, 2014 - Analysis, Spectra, and Number theory: A conference in honor of Peter Sarnak on his 61st birthday. This will be primarily a survey talk about recent developments in the area.
From playlist Analysis, Spectra, and Number Theory - A Conference in Honor of Peter Sarnak on His 61st Birthday
Matthew Emerton - The p-adic Langlands program: motivations and applications
December 18, 2014 - Analysis, Spectra, and Number theory: A conference in honor of Peter Sarnak on his 61st birthday. In this talk I will overview some of the local and global aspects of the p-adic Langlands program, with an emphasis on explaining and motivating the program and its resul
From playlist Analysis, Spectra, and Number Theory - A Conference in Honor of Peter Sarnak on His 61st Birthday
Henryk Iwaniec- The critical zeros - 100% sometimes
December 15, 2014 - Analysis, Spectra, and Number theory: A conference in honor of Peter Sarnak on his 61st birthday. The exceptional real characters have numerous impacts on the distribution of prime numbers and the zeros of L-functions. In this talk I will describe some recent results
From playlist Analysis, Spectra, and Number Theory - A Conference in Honor of Peter Sarnak on His 61st Birthday
Jon Keating - Arithmetic statistics and function fields
December 16, 2015 - Analysis, Spectra, and Number Theory: A Conference in Honor of Peter Sarnak on His 61st Birthday I will review recent results with Edva Roditty-Gershon and Zeev Rudnick concerning the function-field analogues of conjectures relating to sums of arithmetic functions in s
From playlist Analysis, Spectra, and Number Theory - A Conference in Honor of Peter Sarnak on His 61st Birthday
Exact Values of Trigonometric Ratios (2 of 2: 60° and 45°)
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From playlist Trigonometry
Alexander Lubotzky - From Ramanujan graphs to Ramanujan complexes
December 17, 2014 - Analysis, Spectra, and Number theory: A conference in honor of Peter Sarnak on his 61st birthday. Ramanujan graphs has been defined and constructed in the 80's by Lubotzky-Phillips-Sarnak and by Margulis. In recent years a high dimensional theory of expanders is emer
From playlist Analysis, Spectra, and Number Theory - A Conference in Honor of Peter Sarnak on His 61st Birthday