Amazines Free Article Archive - Monday, February 19, 2018
Read about the most recent changes and happenings at
Log into your account or register as a new author. Start submitting your articles right now!
Search our database for articles.
Subscribe to receive articles emailed straight to your email account. You may choose multiple categories.
View our newest articles submitted by our authors.
View our most top rated articles rated by our visitors.
* Please note that this is NOT the ARTICLE manager
Add a new EZINE, or manage your EZINE submission.
Add fresh, free web content to your site such as newest articles, web tools, and quotes with a single piece of code!
Home What's New? Submit/Manage Articles Latest Posts Top Rated Article Search
Subscriptions Manage Ezines
 Article Archive
 Advertising (133222)
 Advice (160321)
 Affiliate Programs (34722)
 Art and Culture (73438)
 Automotive (145340)
 Blogs (74879)
 Boating (9832)
 Books (17126)
 Buddhism (4120)
 Business (1326128)
 Business News (425970)
 Business Opportunities (366167)
 Camping (10941)
 Career (72647)
 Christianity (15807)
 Collecting (11635)
 Communication (114998)
 Computers (241844)
 Construction (38769)
 Consumer (49403)
 Cooking (17052)
 Copywriting (6551)
 Crafts (18188)
 Cuisine (7525)
 Current Affairs (20348)
 Dating (45735)
 EBooks (19670)
 E-Commerce (48169)
 Education (184707)
 Electronics (83375)
 Email (6387)
 Entertainment (159605)
 Environment (28868)
 Ezine (3038)
 Ezine Publishing (5441)
 Ezine Sites (1550)
 Family & Parenting (110835)
 Fashion & Cosmetics (196221)
 Female Entrepreneurs (11837)
 Feng Shui (130)
 Finance & Investment (310094)
 Fitness (105389)
 Food & Beverages (62706)
 Free Web Resources (7933)
 Gambling (30196)
 Gardening (25039)
 Government (10506)
 Health (628203)
 Hinduism (2156)
 Hobbies (44001)
 Home Business (91530)
 Home Improvement (250991)
 Home Repair (46059)
 Humor (4787)
 Import - Export (5422)
 Insurance (45052)
 Interior Design (29526)
 International Property (3485)
 Internet (190860)
 Internet Marketing (146211)
 Investment (22814)
 Islam (1169)
 Judaism (1356)
 Law (80185)
 Link Popularity (4592)
 Manufacturing (20756)
 Marketing (98648)
 MLM (14135)
 Motivation (18200)
 Music (26987)
 New to the Internet (9474)
 Non-Profit Organizations (4046)
 Online Shopping (129582)
 Organizing (7790)
 Party Ideas (11840)
 Pets (38066)
 Poetry (2234)
 Press Release (12645)
 Public Speaking (5617)
 Publishing (7514)
 Quotes (2406)
 Real Estate (126517)
 Recreation & Leisure (95133)
 Relationships (87388)
 Research (16128)
 Sales (80282)
 Science & Technology (110027)
 Search Engines (23432)
 Self Improvement (152999)
 Seniors (6216)
 Sexuality (35914)
 Small Business (49266)
 Software (82870)
 Spiritual (23403)
 Sports (116393)
 Tax (7656)
 Telecommuting (34061)
 Travel & Tourism (305966)
 UK Property Investment (3117)
 Video Games (13416)
 Web Traffic (11690)
 Website Design (56745)
 Website Promotion (36531)
 World News (1000+)
 Writing (35483)
Author Spotlight

I am an American author who loves to find out about new things. I try to cover as many topics as I c...more

I am a qualified internet marketing professional and content writer with more than 10 years of exper...more

Dan Abelow is an American inventor, author, speaker and technology consultant. His latest patent-pen...more

Katy beacher is a claustrophobic with a lifetime experience in homemaking and decorating on a budget...more

I am an essay writer with vast experience in data analysis, PowerPoint writing and research paper ed...more

Astronomers discovered ancient egyptian observations of a variablestar - China Hard Chrome Plated R by he ni

Article Author Biography
Astronomers discovered ancient egyptian observations of a variablestar - China Hard Chrome Plated R by
Article Posted: 04/19/2013
Article Views: 428
Articles Written: 1145
Word Count: 447
Article Votes: 0
AddThis Social Bookmark Button

Astronomers discovered ancient egyptian observations of a variablestar - China Hard Chrome Plated R

Business,Business News,Business Opportunities
The study of the "Demon star", Algol, made by a research group ofthe University of Helsinki, Finland, has received both scientificand public attention. The period of the brightness variation ofthis eclipsing binary star has been connected to good prognosesthree millennia ago. This result has raised a lot of discussion andthe news has spread widely in the Internet. The Egyptian papyrus Cairo 86637 calendar is probably the oldestpreserved historical document of bare eye observations of avariable star. Each day of one Egyptian year was divided into threeparts in this calendar.

A good or a bad prognosis was assigned forthese parts of a day. + The texts regarding the prognoses are connected to mythologicaland astronomical events, says Master of Science Sebastian Porceddu. A modern period analysis revealed that two statisticallysignificant periods of 29.6 and 2.850 days have been recorded intothe good prognoses. The former is clearly the period of the Moon.The second period differs slightly from the period Algol.

In thiseclipsing binary, the dimmer star partially covers the brighterstar with a period of 2.867 days. + These eclipses last about ten hours and they can be easilyobserved with bare eyes. Their period was discovered by Goodrickein the year 1783, says docent Lauri Jetsu. + We can explain why the period of Algol has increased by about0.017 days, says Lauri Jetsu. The period increase during the pastthree millennia could have been caused by the observed masstransfer between the two members of this binary.

In fact, thiswould be the first observation that confirms the period increase ofAlgol and it also gives an estimate of the mass transfer rate. The ancient Egyptians have made accurate measurements that provideuseful constraints for modern astronomers. + It seems that the first observation of a variable star was made3000 years earlier than was previously thought, says Lauri Jetsu.However, I want to emphasize that our research has only been sentto a scientific journal about two weeks ago. This type of resultscan raise a lot of controversy before they are accepted.

The research was made in collaboration by the researchers from theDepartment of Physics and the Department of World Cultures of theUniversity of Helsinki. It has been published electronically in thearXiv on April 30th, 2012. The Egyptology part of the research willbe published separately. Did the ancient egyptians record the period of the eclipsing binaryAlgol - the Raging one? L. Jetsu, S.

Porceddu, J. Lyytinen, P. Kajatkari, J. Lehtinen, T.Markkanen, J.


I am an expert from, while we provides the quality product, such as China Hard Chrome Plated Rod , Precision Steel Shaft Manufacturer, Hollow Piston Rod,and more.

Related Articles - China Hard Chrome Plated Rod, Precision Steel Shaft Manufacturer,

Email this Article to a Friend!

Receive Articles like this one direct to your email box!
Subscribe for free today!

 Rate This Article  
Completely useless, should be removed from directory.
Minimal useful information.
Decent and informative.
Great article, very informative and helpful.
A 'Must Read'.


Do you Agree or Disagree? Have a Comment? POST IT!

 Reader Opinions 
Submit your comments and they will be posted here.
Make this comment or to the Author only:
*Your email will NOT be posted. This is for administrative purposes only.
Comments: *Your Comments WILL be posted to the AUTHOR ONLY if you select PRIVATE and to this PUBLIC PAGE if you select PUBLIC, so write accordingly.
Please enter the code in the image:

 Author Login 
Register for Author Account


Advertiser Login


   Limited Time $60 Offer!
   90  Days-1.5 Million Views  


Great Paranormal Romance

World News


At LeadGenerators, we specialise in content-led Online Marketing Strategies for our clients in the t...more

John Dugan is a respected professional author who is noted for his contributions to a variety of new...more

I am the author of Sexy Kitten. We specialize in toys for young women who wish to be in charge of th...more

I am webmaster and seo expert. My job Astra Group web management ...more

Author of four books and two screenplays; frequent magazine contributor. Latest releases: "Songs fr...more

I'm an educationist and occasional writer ...more

Susan Friesen, founder of the award-winning web development and digital marketing firm eVision Media...more

Stevert Mckenzie, Travel Enthusiast. ...more

Nanette Victoria Spiritual Coach and Intuitive Guide (over 27 years experience) Spiritual Ministe...more

I am a Digital Marketing expert with over 9 year’s experience of handling online business portals of...more

HomeLinksAbout UsContact UsTerms of UsePrivacy PolicyFAQResources
Copyright © 2018, All rights reserved.
Some pages may contain portions of text relating to certain topics obtained from under the GNU FDL license