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Seeing Equinoxes and Solstices from Space

From the Smithsonian Magazine: "

Today, March 20, is the vernal equinox, the official start of spring. (Or, in the southern hemisphere, autumn. Sorry.)  We celebrate two main sets of holidays pegged to the orientation of the Earth vis-à-vis the Sun—the “equinoxes” and the “solstices.” A few years ago the team at NASA's Earth Observatory used observations from a EUMETSAT meteorological satellite to make the video above, which shows what the solstices and equinoxes look like from space.

On the equinoxes, like the spring equinox today or the fall equinox in September, the length of the day and night are as close as they'll get. The northern hemisphere's summer solstice, in June, is the day with the most hours of sunlight. The winter solstice, in December, has the least daylight. All of it has to do with the fact that the Earth's rotation axis is tilted 23.5 degrees relative to the orbit we take as we circle the Sun.

For those inclined towards exploring Earth-Sun interactions, playing around with the University of Nebraska-Lincoln's Sun Simulator is a fun way to make a little more sense of the various factors that control how the Sun appears in the sky.


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What the loss of Crimea really means for Ukraine

What the loss of Crimea really means for Ukraine | Geography | Scoop.it

"In symbolic terms, it's a huge loss. The Crimean Peninsula holds an important place in the region's history, and the inability to prevent the region from joining Russia is a serious test of leadership for the new Ukrainian government in Kiev.

In practical terms, however, what Crimea means for Ukraine is less clear. In an article last week, The Post's Will Englund noted that Crimea may end up costing Russia more than it might like. And what does Ukraine really lose?"


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Seth Dixon's curator insight, March 24, 2014 12:35 PM

We often view global affairs through our own little prism, considering how it affects us.  So much of the discussion has revolved around Russia and the West in general (and the U.S. specifically), that Ukraine almost gets lost in the shuffle.  All this amid news that the acting Ukrainian Foreign Minister has said that the possibility of war "is growing."

Tag: Ukraine, political, conflict, devolution.

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Gastrodiplomacy: Cooking Up A Tasty Lesson On War And Peace

Gastrodiplomacy: Cooking Up A Tasty Lesson On War And Peace | Geography | Scoop.it
An international relations scholar is using her students' love of food to teach them about global conflicts. It's a form of winning hearts and minds that's gaining traction among world governments.

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Alison D. Gilbert's curator insight, March 25, 2014 3:37 PM

The way to world peace may be through our stomachs. Great idea!

Alison D. Gilbert's curator insight, March 25, 2014 3:38 PM

The way to world peace may be through our hearts and stomachs. Great idea!

Adilson Camacho's curator insight, March 30, 2014 7:58 PM

Vínculos Poderosos! Pilares da Geografia Vivida.

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What makes geography grads the most employable?

What makes geography grads the most employable? | Geography | Scoop.it
We asked our experts why they thought geography and psychology graduates were found to be least likely to be unemployed

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Seth Dixon's curator insight, March 29, 2014 11:23 AM

Some studies have shown that geography graduates are some of the least likely to be unemployed...what makes geography majors so employable?  The mix of skills without one career track makes geography majors able to land on their feet in a shifting economic landscape.  If you wondering about job possibilities for geography majors, here is a list designed to answer the question, "what can I do with a geography degree?"  More than you might think. 

s smith's curator insight, March 31, 2014 4:04 AM

Why study geography ? This is why

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Logging and Mudslides

Logging and Mudslides | Geography | Scoop.it
In recent decades the state allowed logging — with restrictions — on the plateau above the Snohomish County hillside that collapsed in last weekend’s deadly mudslide.

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Geofreak's curator insight, April 3, 2014 1:39 PM

Mijnbouw en aardverschuivingen, een goede combinatie ...... 

PIRatE Lab's curator insight, April 7, 2014 11:48 AM

There are several reasons for mudslides--some are purely a result of physical geography and others are related to land use patterns.  This last week's mudslide in Washington state was a combination of the two and although this impacts one place (see on map), it is a good teaching moment to discuss the environmental impacts of land use patterns and resource extraction projects.  As seen in this interactive, the river was cutting at the base of the hill, while loggers were clear-cutting at the top of the mountain.  Trees help prevent erosion as the roots hold the soil in place--a critical piece to the puzzle in a very rainy climate.  With $1 million worth of timber on the slope, logging companies persisted despite objections from the Department of Natural Resources and some restrictions (but in hindsight, those restrictions clearly were not enough). 

 

View the impact in ArcGIS online: Before and After Swipe, LiDAR I and II, and Imagery.

 

Questions to Consider: Other than economic worth, what other ways are there to value and evaluate the environment?  How could this landscape have been protected and managed better or was this mudslide inevitable?   

El Futuro deWaukesha's curator insight, April 18, 2014 12:03 AM

Working on an Inquiry of recent natural disasters with first grader.  

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If the Earth Stood Still

If the Earth Stood Still | Geography | Scoop.it

"The following is not a futuristic scenario. It is not science fiction. It is a demonstration of the results of an extremely unlikely, yet intellectually fascinating query: What would happen if the earth stopped spinning?  ArcGIS was used to perform complex raster analysis and volumetric computations and generate maps that visualize these results.


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Seth Dixon's curator insight, April 3, 2014 7:46 PM

I love a good "what if?" question and this one (including the GIS model-based analysis) is fascinating. 

Tracey M Benson's curator insight, April 4, 2014 4:49 PM

What a fascinating question, answered as a visualisation: What would happen if the earth stopped spinning? ArcGIS was used to perform complex raster analysis and volumetric computations and generate maps that visualise the results.

Melissa Marshall's curator insight, April 9, 2014 10:25 PM

How interesting! The detailed GIS is fascinating and although an unlikely scenario, is great for discussion and deeper thought. You could discuss with students how the world would cope or what sort of device could start it spinning again...?

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GeoFest

Strengthening Geographic Content in the Classroom South Carolina GeoFest

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Seth Dixon's curator insight, March 22, 2014 8:45 AM

I'm very pleased to be in South Carolina, presenting at their GeoFest on the importance of strengthening geographic content in the classroom and some practical examples of how to do so. 

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Using Scale in Elementary School

Using Scale in Elementary School | Geography | Scoop.it

Great idea to help early years learners understand their 'place'...


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Seth Dixon's curator insight, March 24, 2014 11:19 AM

This is would be a nice craft to help younger students understand the concept of scale.  This adapts some of the ideas from the classic picture book "Me on the Map" by Joan Sweeney.  


Tags: scale, K12, location.

Hoolee Nan's curator insight, March 30, 2014 5:17 PM

A great way for children to explore countries, areas, positions on maps and get a grasp of their surroundings! Also a fun and interactive idea for the classroom.

Jamie Mitchell's curator insight, March 8, 2016 12:05 AM

AC Geography key concepts Place, Space, Environment and Interconnection...all in a set of form cups! Love it...

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Circles of Latitude Craft

"Hands-on worksheet to play and review the circles of latitude from the Wise Nest."  


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Seth Dixon's curator insight, March 27, 2014 2:11 PM

I originally found this hands-on activity on Maps 101 wanted to make my own.   This is a fun way to make latitude more meaningful and memorable.  All the documents you need to recreate this, and to have your students make their own are available here


TagsfunartK12.

Ruth Reynolds's curator insight, March 28, 2014 7:28 PM

Easy to play with

Ms. Harrington's curator insight, March 30, 2014 10:08 AM

http://thewisenest.com/wp-content/uploads/2013/03/Latitude-Circles-Interactive-Lines-WN.pdf

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Yellowstone National Park rattled by largest earthquake in 34 years

Yellowstone National Park rattled by largest earthquake in 34 years | Geography | Scoop.it

"Yellowstone National Park, which sits atop one of the world's largest super-volcanoes, was struck on Sunday by a magnitude 4.8 earthquake, the biggest recorded there since February 1980, but no damage or injuries were immediately reported."


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Seth Dixon's curator insight, March 31, 2014 9:10 AM

The amazing geothermal activity in Yellowstone National park annually brings thousands of tourists to the region.  The reason why these geysers, hot springs and fumaroles are there is because of the what is just below the surface.  Watch a video (the 2 minute version or a 44 minute version) to see why this natural wonder is also a major geologic threat for earthquake and volcanic activity, which explains the reasons for this weekend's earthquake.   Not to be an alarmist, but this is why some fear another major eruption soon.

CSINowedu's curator insight, March 31, 2014 9:23 AM

Yellowstone National Park, which sits atop one of the world's largest super-volcanoes, was struck on Sunday by a magnitude 4.8 earthquake, the biggest recorded there since February 1980, but no damage or injuries were immediately reported.

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Earthquakes in the Classroom

"An 8.2-magnitude earthquake struck off the coast of northern Chile, generating a local tsunami.  The USGS reported the earthquake was centered 95 km (59 miles) northwest of Iquique at a depth of 20.1km (12.5 miles).  This video gives the context for this type of earthquake."  


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dilaycock's curator insight, April 3, 2014 2:02 AM

From Seth Dixon: 

 "IRIS(Incorporated Research Institutions for Seismology) creates teaching resources for teachers who want to use the current events such as yesterday's earthquake in Chile as an opportunity to discuss earth's physical systems and how they impact humanity.  They've produces slides, animations and PDFs for classroom use all while you were sleeping last night."  

Geofreak's curator insight, April 3, 2014 1:37 PM

Hoe ontstond deze tsunami precies?

Ms. Harrington's curator insight, April 5, 2014 10:52 AM

http://www.iris.edu/hq/programs/education_and_outreach/resources

 

Lesson Plans from the Incorporated Research Institutions for Seismology (IRIS)

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European word translator

European word translator | Geography | Scoop.it
Translate any word from English to more than 30 other European languages, on a map

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Courtney Barrowman's curator insight, November 5, 2014 8:19 PM

unit 3

Claire Law's curator insight, April 26, 2015 2:30 AM

Lots of fun to visualise linguistic similarities and variability across a region.

Sally Spoon's curator insight, May 31, 2015 7:33 PM

Amazing how many use hamburger as hamburger.

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BUILDING THE MACHINE - The Common Core Documentary

http://www.CommonCoreMovie.com http://www.facebook.com/BuildingtheMachine http://www.twitter.com/CommonCoreMovie To request a public screening copy of the fi...
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