Sunday, March 11, 2012

Sundials

A sundial is a device that determines the time of day by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style onto a surface marked with lines indicating the hours of the day. As the sun moves across the sky, the shadow-edge aligns with different hour-lines. All sundials must be aligned with the axis of the Earth's rotation to tell the correct time. In most designs, the style must point towards true celestial north (not the north magnetic pole or south magnetic pole). That is, the style's horizontal angle must equal the sundial's geographical latitude.
Some Archeological examples









 From Beijing

Friday, March 9, 2012

A Happy Purim to All

Today is Purim. The celebration that includes getting dressed up (not only children) and just having fun.
Here are some images of the festivity around the Israel



It is customary to eat Hamantashen (Ozen Haman) filled with poppy seeds


Enjoy the Day

Purim Stock Photography - Images by photostock-israel .
Feel free to share this slide show on your own site