Re: What is this plate?

2013-06-12 Thread Gianni Ferrari
In XVIII and XIX centuries all the complex calculations, particularly those astronomical, were made using logarithms. For this reason, astronomers and mathematicians tried and invented formulas containing only products and divisions, without addition and subtraction. In particular in spherical tri

A big new analemmatic sundial on Malta

2013-06-12 Thread J. Tallman
Hello All, Here is an interesting link to a video/story about a new analemmatic sundial installation on Malta - it seems that the dial type continues to spread, especially at schools, and this is a really nice one! http://www.timesofmalta.com/articles/view/20130611/local/School-awaits-sundi

Re: A big new analemmatic sundial on Malta

2013-06-12 Thread Perit Alexei Pace
Hello Jim, Thank you for your email, It was great working on this project (I made the calculations and concept design), which will hopefully help many students appreciate the beauty of science and art. Best regards, Alexei Malta On 12 June 2013 14:23, J. Tallman wrote: > Hello All, > > ** **