For all those interested in Newton’s draft of his thesis and papers, Cambridge university has made them available to the public. The link is here. The story on another blog providing the story link is here.

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I found this youtube clip on the history of modern Calendar’s. It is short clip but a very  good summary.  Enjoy it.

 

The WordPress.com stats helper monkeys prepared a 2011 annual report for this blog.

Here’s an excerpt:

A New York City subway train holds 1,200 people. This blog was viewed about 3,900 times in 2011. If it were a NYC subway train, it would take about 3 trips to carry that many people.

Click here to see the complete report.

We report the first experimental demonstration of a “cloak” for dc magnetic fields. We utilize a material consisting of an array of artificially patterned superconducting and soft ferromagnetic elements. When an external dc magnetic field is applied, we find that the interior of the cloak is completely shielded while the exterior field remains unperturbed, as if the cloak and the cloaked region are just an empty space.

The link to the paper can be found here.

 

http://www.guardian.co.uk/books/data/author/dn-sathyanarayana

http://books.google.com/books/about/Electronic_absorption_spectroscopy_and_r.html?id=VLIUnG9YimMC

 

 

 

 

Found this link today on Maxwell’s papers all collected and edited.

Makes a very good read. 


We designed and tested a dc magnetic field cloak. We showed that, when
 the external dc magnetic field is applied, the interior of the
 cloak is shielded while the field outside remains unperturbed.
we used a metamaterial composed of artificially patterned superconducting
and paramagnetic elements.
The picture shows the cloak along with the setup used for the demonstration.

I will upload the paper once it is released. 

references

1.  DC magnetic cloak
S. Narayana and Y. Sato, Advanced Materials, In press.

2. Wood, B. & Pendry, J. B. Metamaterials at zero
 frequency. J. Phys. Condens. Matter 19, 076208 (2007).

3.Magnus, F. et al. A d.c. magnetic metamaterial. Nature
 Materials 7, 295-297 (2008).

4.Navau, C. et al. Magnetic properties of a dc
 metamaterial consisting of parallel square 
superconducting thin plates. Appl. Phys. Lett.
 94, 242501 (2009).