Home     Contact     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
 Home      Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   

<< Back to INDEX

When did humans discovered that the Earth is round? [Random Knowledge #10]
posted February 19 2013 22:44.26 by Giorgos Lazaridis

Today we know that the concept of the spherical Earth dates back to the ancient Greeks, at around the 6th century BC. Nevertheless, it remained only in the philosophical field until the 3rd century BC, when Hellenistic astronomy established the Earth's spherical shape.

It is not clear who discovered first that the Earth is round - and how. Many believe that the discovery was made by the fact that things at the distant horizon (such as a ship or a mountain) disappear from bottom up. Others believe that it was the observations from travelers who noticed that starts change their position in the night sky from place to place. This assumption becomes stronger taken the great number of the Greek colonies around the eastern Mediterranean Sea.

The first time that a real demonstration proved that the Earth is round, was by Ferdinand Magellan and Juan Sebastian Elcano's famous circumnavigation (1519"121521)

You might also like...

Three scientific discoveries directly from the ISS [Science]

Creativity and Imagination #4 [4 Photos]

How It's Made - Fiber Optics [Video]

The power of music cheered up an almost depressed old man [Video]

DIY Induction Heater [Project]

VHF FM Transmitter [Project]

How fast are you moving right now? [Science]

Homebrewed retro wooden arcade box [Project]

<< Back to INDEX



  Email (shall not be published)


Notify me of new posts via email

Write your comments below:
BEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page. But if you have questions please use the forum instead to post it. Thank you.


No comment yet...

Be the first to comment on this page!

 Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS   

Site design: Giorgos Lazaridis
© Copyright 2008
Please read the Terms of services and the Privacy policy