|
 

Leonid Meteor Showers

The Leonids are coming! The Leonids are coming! NASA and the US Air Force have teamed up with Russian Space Command to prepare for the invasion, astronomers around the world are looking skyward, and people are seeking clear skies in droves for the great Leonid shower.

Source: Arttoday.comThe Leonid meteor shower is a barrage of shooting stars produced by the trail of a passing comet that appears every year on or about November 17. Leonids are quick, bright meteors that enter the atmosphere at about 158,000 miles per hour, frequently leaving glowing trails for seconds or even minutes after they are vaporized.

So called because they appear to radiate from the constellation Leo, Leonids have been reported as far back as A.D. 902. Chinese astronomers at the time reported that "stars fell like rain" and the Egyptians declared 902 "the year of stars." In 1366, Portuguese observers thought the Leonids heralded the end of the world. In 1625, Korean astronomers reported that "many stars fought and died in the west." Spectators of 1833 Boston reported that "the frequency of meteors were half that of flakes of snow in a snowstorm."

Thirty-three years later, Horace Tuttle and Ernst Tempel independently observed a dim comet, calculated its orbit, and secured a place in the annals of astronomy. Now referred to as comet Tempel-Tuttle, the orbiting body they discovered is the source of the Leonid meteor shower that has fascinated mankind for nearly 1000 years.

Provided by fact
monster

Highlights

Back to School Headquarters
August is Back to School Month and many of you will be returning to the classroom very soon. Feeling unprepared? We have you covered! Check out our very best resources and advice for New Teachers (applicable for the new and experienced), as well as Bulletin Board ideas, Icebreakers, Open House materials, and general Classroom Management tips for a successful new school year.

Special Offers for Teachers Newsletter
Do you receive our Special Offers for Teachers newsletter? Each month, we send out FREE resources to all of our subscribers. Our next issue (August 12) features a collection of our best Back-to-School materials—that's right, sign up now and get them for free!

Discounts for Teachers
Start the new school year with cash in your pocket! We have some great ways to save money on the supplies that keep your classroom running: Money-Saving Tips for Teachers and Free & Cheap Rewards for Students. Plus, check out our Discounts for Teachers so you can save on office supplies, clothing, books, crafts and fabric, travel, and more!

August Calendar of Events
August is full events that you can incorporate into your standard curriculum. Our Educators' Calendar outlines activities for each event, including: Friendship Day (8/2), President Obama's Birthday (8/4/1961), Astronaut Neil Armstrong's Birthday (8/5/1930), International Art Appreciation Day (8/9), International Youth Day (8/12), Aviation Day (8/19), Tooth Fairy Day (8/22), International Day for Remembrance of Slave Trade & Its Abolition (8/23), and Women's Equality Day (8/26). Plus, celebrate Back to School Month and Get Ready for Kindergarten Month all August long!

Poptropica Teaching Guides
Poptropica is one of the Internet's most popular sites for kids—and now it's available as an app for the iPad! It's not just a place to play games; each of the islands featured on the site provides a learning opportunity. Check out our teaching guides to four of Poptropica's islands: 24 Carrot Island, Time Tangled Island, Mystery Train Island, and Mythology Island.

Free 7-Day Trial for TeacherVision®

Sign up for a free trial and get access
to our huge library of teaching materials!

Start Trial