Circles of latitude

64th parallel north

The 64th parallel north is a circle of latitude that is 64 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 21 hours, 1 minute during the summer solstice and 4 hours, 12 minutes during the winter solstice. (Wikipedia).

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using exterior angles to find interior angles - g5

there are connections between exterior and interior angles

From playlist Common Core Standards - 8th Grade

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corresponding angles and straight lines - g5

using straight angles to find the values of different angles

From playlist Common Core Standards - 8th Grade

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Bearings Example (1 of 2: Understanding the situation)

More resources available at

From playlist Non-right-angled Trigonometry

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Solution #35 Walk Near North Pole and South Pole!

Solution #35 Walk Near North Pole and South Pole!

From playlist Solutions to Bi-weekly Physics Problems

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Solving Right Triangles - Part 2 Applications

From playlist Trigonometry Introduction

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Geodetic Coordinates: Computing Latitude and Longitude

In this video we show how to compute the geodetic latitude and terrestrial longitude if given the velocity north and east. This is useful for simulating a body moving over a spheroid Earth model. Topics and timestamps: 0:00 – Introduction 0:10 – Terrestrial longitude, geodetic latitude,

From playlist Flight Mechanics

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Where 2012, Harold Cooper, "Ignite - Extending the Manhattan Grid"

Harold Cooper Software Engineer, Hunch / eBay Harold Cooper is a software engineer at Hunch in New York City, now part of eBay's merchandising team. He is broadly interested in discovering and propagating patterns, from correlations in the social graph to natural geometries and music. H

From playlist Where 2012

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Vector App: Find the Eastern and Southern Displacement of a Walk

This video explains how to determine the Eastern and Southern displacement of a walk using a vector.

From playlist Applications of Vectors

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corresponding angles - g5

an example that using properties of corresponding angles

From playlist Common Core Standards - 8th Grade

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Computer History IBM SAGE Boeing BOMARC Missile Defense System 1950's Military MIT

Back-to-back, two “Cold War” computing films that complement each other. First, IBM’s commercial for the SAGE computer system built in the 1950’s for U.S. defense. SAGE was used by NORAD and included the BOMARC missile system, which is the subject of film #2 “The Armored Sky” from 1958.

From playlist IBM SAGE, World's Largest Computer AN/FSQ-7 1950's Cold War

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F-86 vs. Mig 15: The Knights of the Korean Skies

The Korean War was the first of the small wars that dragged the American flag through Vietnam, Afghanistan, and Iraq after 1945. In search of a decisive victory, Communist and UN armies surged clashed across the Korean hills and skies. Between December 1950 and July 1953, the northwest c

From playlist Combat Tech

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The Computer Chronicles - Computers and the Pentagon Part 1 (1986)

Special thanks to for hosting these episodes. Downloads of all these episodes and more can be found at:

From playlist The Computer Chronicles 1986 Episodes

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Determine the Percent of Data at or Above and at or Below a Percentile

This video explains how to determine the percent of data that fall above and below a given percentile.

From playlist Statistics: Describing Data

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[Rust Programming] Advent of Code 2016 Day 14 - One-Time Pad

My Rust solution for Day 14 of Advent of Code 2016. [NOTE: This video was streamed October 2022] I livestream these on twitch when I can, on occasional weekday mornings, starting between 7 and 7:30am Eastern/US time. I usually stream for about 1-2 hours, depending on how well my voice ho

From playlist Advent of Code 2016

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Lec 16 | MIT 6.172 Performance Engineering of Software Systems, Fall 2010

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From playlist MIT 6.172 Performance Engineering of Software Systems

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Launch of Jetstream and dedication of Big Red II+ and the Diet Testbed

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From playlist Jetstream - the first NSF-funded production cloud environment

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Adding Fraction Series - Zale's Question

A student asked about adding a sequence of fractions

From playlist Middle School This Year

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MAKE A FLOAT LOCK Drill Press Vise TIPS 581 pt 2 tubalcain

This is pt 2 of a 10 pt video series on HOW TO MAKE A FLOAT LOCK type drill press vise. Down load this file of the drawings (by Ken on DROPBOX--provided by THANKS - (DAVE) This is pt 1 of a 10 pt video series on HOW TO MAKE A FLOAT LOCK type drill press vise. Down load this file of the dr

From playlist MAKE A FLOAT LOCK Drill Press Vise tubalcain

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Learning to find the reference angle in the third quadrant

👉 Learn how to find the reference angle of a given angle. The reference angle is the acute angle formed by the terminal side of an angle and the x-axis. To find the reference angle, we determine the quadrant on which the given angle lies and use the reference angle formula for the quadrant

From playlist Find the Reference Angle

Related pages

Degree (angle) | Equator | Circle of latitude | 65th parallel north | 63rd parallel north | True north