May 2019 M T W T F S S « Apr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Archives
Tags
- Additional Protocol
- Ali Khamenei
- Al Qaeda
- Angela Merkel
- anti-semitism
- Arab Spring
- Ayatollah Ali Khamenei
- Barack Obama
- Benjamin Netanyahu
- Bradley Manning
- Chelsea Manning
- CIA
- David Albright
- Diplomacy
- Donald Trump
- drone war
- Edward Snowden
- Esfahan
- Fordow
- Gaza
- GCHQ
- Geneva talks
- George W. Bush
- Glenn Greenwald
- global warming
- Global War on Terror
- Hassan Rouhani
- Hillary Clinton
- IAEA
- Iran
- Iraq War Logs
- ISIS
- Islam
- Israel
- Julian Assange
- Laura Poitras
- LEU
- Mahmoud Ahmadinejad
- mass surveillance
- medical isotopes
- Middle East
- Mir-Hossein Mousavi
- Mohamed ElBaradei
- Mohammad Khatami
- Muhammad
- Natanz
- Navid Kermani
- NIE
- Nobel Peace Prize
- Norman Finkelstein
- NPT
- NSA
- nuclear program
- P5+1
- Palestine
- Parchin
- Penrose tiling
- Peter J. Lu
- Qatar
- Qom
- Qur'an
- Ramadan
- Saeed Jalili
- Shi'a
- stuxnet
- surveillance state
- swap deal
- Taliban
- Tehran Research Reactor
- total surveillance
- TRR
- uranium enrichment
- WikiLeaks
- Yemen
- Yukiya Amano
Disclaimer
This is a personal weblog. The information in this weblog is provided "as is" with no warranties, and confers no rights. The opinions expressed here represent my own and not those of my employer. I am not responsible for the content of external internet sites.
Tag Archives: Alpay Özdural
Polygons
“He who knows not and knows not that he knows not, shun him. And he who knows not and knows that he knows not, awaken him. And he who knows and knows that he knows, follow him.” Arabic saying The … Continue reading
Posted in Academics, Art, Iran, Iraq, Islam, Science
Tagged Abu’l-Wafā’ al-Būzjāni, Alpay Özdural, aperiodic tiling, Arthur L. Loeb, decagon, Esfahan, golden gnomon, golden ratio, golden triangle, Islamic Pentagonal Seal, Jamshīd al-Kāshī, Masjed-e Jomeh, Omar Khayyam, Penrose tiling, Pentagon, phi, polygon, Roger Penrose, Sayyid Mahmud-e Naqash, swastika, Wasma'a K. Chorbachi
3 Comments
Decagonal Tesselations
The Great Seljuq Empire (1037-1194 CE) has been described as a period with stunning scientific and artistic achievements in particular in Iran. Their capital became Esfahan in central Iran under Malikshah I (d. 1092). Among the many Seljuq monuments found … Continue reading
Posted in Academics, Art, Iran, Islam
Tagged Alpay Özdural, Darb-i Imam, decagonal, Emil Makovicky, Esfahan, girih tiles, Gunbad-i Kabud, Marāgha, Masjed-e Jomeh, Paul J. Steinhardt, Penrose tiling, pentagonal, Peter J. Lu, quasi-crystalline, Seljuq, western iwan
4 Comments
