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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.

Photographs of the Newgrange Passage Tomb

Click for full size This is a photograph of the Newgrange area. You can see the tomb is located on a gently sloping hill. The sheep in this photo will give you perspective on how large this tomb is!

Click for full size This is a close-up photograph of the building nearest the tomb. It is located some 10 meters from the tomb. It is unclear exactly what its relation is to the tomb, but some have called it a satellite tomb and others have called it a hut.

This is the portal stone of Newgrange.

This is kerbstone 52 on the northern perimeter of Newgrange. It shows some of the carved designs that could very well be pictures of the Sun.

This is a close-up photo of the Newgrange passage tomb. Again, you get perspective as to how big the structure is by the people standing in the picture. It is estimated that it would have taken a workforce of 300 at least 20 years to construct Newgrange, because it is so big!

Another image showing the portal stone of Newgrange. The portal stone of Newgrange counts as kerbstone number 1.

Another photo of kerbstone number 52 at Newgrange. There are actually 97 kerbstones that surround the main Newgrange mound. Many are decorated as can be seen in these images.

This is kerbstone number 93 of Newgrange.

This is kerbstone number 67 of Newgrange. This pattern is known as S-shaped spirals or returning spirals since the spirals feed into each other.


These are photographs of the Newgrange tomb.
Click on images for full size
The first two images are Courtesy of Corel Photography. The second two images are photographs of Jan Bily. The remaining images (labelled www.knowth.com) are from Knowth.com

The History of Astronomy

Details of Newgrange

Last modified July 25, 2001 by Jennifer Bergman.

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