The 81st parallel north is a circle of latitude that is 81 degrees north of the Earth's equatorial plane, in the Arctic. It crosses the Atlantic Ocean, the Arctic Ocean, Europe, Asia and North America. At this latitude the sun is always visible during the summer solstice and astronomical twilight during the winter solstice. (Wikipedia).

Irrational Roots to the nearest 10th #37

estimating an irrational root to the nearest tenth

From playlist Common Core Standards - 7th Grade

a problem dealing with parallel lines and transversals

From playlist Common Core Standards - 8th Grade

calendars and frequency tables

organizing data into a frequency table

From playlist Common Core Standards - 7th Grade

Long Multiplication - 3 x 3 Example Set 2

In this video, we get more practice with 3 by 3 digit multiplication combinations

From playlist Arithmetic

BATTLEFIELD WW2: The Battle of Angaur

Footage from 1944 of fighting between the United States and Japan.

From playlist FRONTLINE WORLD WAR 2

Find a Coterminal Angle from 0 to 360 degrees to a Given Angle in Degrees (Positive)

This video explains how to determine coterminal angles from 0 to 360 degrees for given angles. http://mathispower4u.com

From playlist Angles and Right Triangles

Statistics: Ch 2 Graphical Representation of Data (46 of 62) What is Percentile?

Visit http://ilectureonline.com for more math and science lectures! We will learn what is a percentile. To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 . Next video in this series can be seen at: https://youtu.be/ImeJFYlaGdw

From playlist STATISTICS CH 2 GRAPHICAL REPRESENTATION OF DATA

How to find the interquartile range using a TI 83.

From playlist TI 83 for Statistics

Rounding to the Nearest Whole Number (Ones Place Value)

This video explains how to round to the nearest whole number using the number line and formal rules. http://mathispower4u.com

From playlist Introduction to Decimals

Determine Relative Extrema of a Function of Two Variables

This video provides and example of how to determine critical points and determine if each point is a rel max, rel min, or saddle point.

From playlist Relative Extrema and Applications to Functions of Two Variables

Driving Downtown - Upper Manhattan 4K - USA

Driving Downtown Streets - Park Avenue - New York City New York USA - Episode 100. Starting Point: Park Avenue https://goo.gl/maps/XN7mw7WNm1n . The Upper East Side is a neighborhood in the borough of Manhattan in New York City, and is now one of the most affluent neighborhoods in New Yor

From playlist Location by City - New York City - J Utah

2018 Alumni Seminar Day Keynote: Growing Up Feynman - M. Feynman - 5/19/2018

"Growing Up Feynman, or: Michelle, Where Do We Keep the Spoons Around Here?" Alumni Seminar Day 2018 Keynote Address by Michelle Feynman Produced in association with Caltech Academic Media Technologies. ©2018 California Institute of Technology

From playlist Caltech Alumni Seminar Day

U.S. Civil War - Surprising Soldiers - Extra History

Watch this video ad-free on Nebula: https://nebula.tv/videos/extra-history-u-s-civil-war-surprising-soldiers-extra-history Historians have been learning that the US civil war armies were a lot more diverse than previously accounted for--partly because many soldiers who hailed from other c

From playlist Extra History: Chronological Order (1700 CE - Present)

Thomas Edison celebrates his 81st birthday and demonstrates a new lighting system. No titles. Florida, United States of America. C/U of inventor and physicist Thomas Alva Edison with his wife in their garden on Edison's 81st birthday. Various shots of Edison sitting at a table

From playlist NOT SO MODERN

2018 Alumni Seminar Day - Welcome - C. Bryant - 5/19/2018

Chris Bryant (BS '95) Vice President, Caltech Alumni Association

From playlist Caltech Alumni Seminar Day

Essentials of Neuroscience with MATLAB: Module 2-5 (EEG)

In this module, you will work with human EEG data recorded during a steady-state visual evoked potential study (SSVEP, aka flicker). You will learn about spectral analysis, alpha activity, and topographical mapping. The MATLAB code introduces functions, sorting, and correlation analysis.

From playlist Essentials of neuroscience with MATLAB

Watch more videos on http://www.brightstorm.com/math/geometry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https

From playlist Geometry

Astro Online: Manhattanhenge #LearnWithMe

For 2022, Manhattanhenge dates are: May 29th 8:13 pm (Half Sun) / May 30th 8:12pm (Full Sun) July 11th 8:20pm (Full Sun) / July 12th 8:21pm (Half Sun) In 2020, the Museum presented this live program about the phenomenon of the Sun aligning with Manhattan's street grid. Join us on this vi

From playlist #LearnWithMe from AMNH

corresponding angles and straight lines - g5

using straight angles to find the values of different angles

From playlist Common Core Standards - 8th Grade