#geometric

mkwadee@diasp.eu

#LogarithmicSpirals are found in many aspects of nature such as in the growth of #snail #shells and the form of #spiral #galaxies. They have a lot of interesting #geometric properties and this #animation highlights just one of them. It shows that the #PolarAngle (here denoted as ⍺) is constant, being the angle that the #tangent of the spiral makes with the tangent of any circle centred at the origin.

#MathsForTheDay #Mathematics #Maths #Geometry #WxMaxima #FreeSoftware

dkkhorsheed@diasp.org

#Mughal #Islamic #Dynasty #Architecture #Geometric #Design #Art #Sandstone #Red #Fort #Agra #Culture #History #UttarPradesh #India #World

Red Fort of Agra

I dream of seeing such beauty...

Agra, Uttar Pradesh, India

Near the gardens of the Taj Mahal stands the important 16th-century Mughal monument known as the Red Fort of Agra. This powerful fortress of red sandstone encompasses, within its 2.5-km-long enclosure walls, the imperial city of the Mughal rulers. It comprises many fairytale palaces, such as the Jahangir Palace and the Khas Mahal, built by Shah Jahan; audience halls, such as the Diwan-i-Khas; and two very beautiful mosques.