Annual Armed Forces Day, Iran

Ancient Iranians built Qanats and Yakhchal to provide and keep water. The first windmill appeared in Iran in the 9th century. Iranians contributed significantly to the current understanding of astronomy, natural science, medicine, mathematics, and philosophy. Khwarizmi is widely hailed as the father of algebra. Ethanol (alcohol) was first identified by Persian alchemists such as Muhammad ibn Zakarīya Rāzi. Throughout the Middle Ages, the natural philosophy and mathematics of the Ancient Greeks and Persians were furthered and preserved within Persia. The Academy of Gundishapur was a renowned centre of learning in the city of Gundeshapur during late antiquity and was the most important medical centre of the ancient world during the 6th and 7th centuries. During this period, Persia became a centre for the manufacture of scientific instruments, retaining its reputation for quality well into the 19th century.
Iran strives to revive the golden age of Persian science. The country has increased its publication output nearly tenfold from 1996 through 2004, and has been ranked first in terms of output growth rate followed by China. Despite the limitations in funds, facilities, and international collaborations, Iranian scientists remain highly productive in several experimental fields, such as pharmacology, pharmaceutical chemistry, organic chemistry, and polymer chemistry. Iranian scientists are also helping construct the Compact Muon Solenoid, a detector for CERN's Large Hadron Collider. In 2009, a SUSE Linux-based HPC system made by the Aerospace Research Institute of Iran (ARI) was launched with 32 cores and now runs 96 cores. Its performance was pegged at 192 GFLOPS. Sorena 2 Robot, which was designed by engineers at University of Tehran, was unveiled in 2010. the Institute of Electrical and Electronics Engineers (IEEE) has placed the name of Surena among the five prominent robots of the world after analyzing its performance.
In the biomedical sciences, Iran's Institute of Biochemistry and Biophysics is a UNESCO chair in biology. In late 2006, Iranian scientists successfully cloned a sheep by somatic cell nuclear transfer, at the Rouyan research centre in Tehran. According to a study by David Morrison and Ali Khademhosseini (Harvard-MIT and Cambridge), stem cell research in Iran is amongst the top 10 in the world. Iran ranks 15th in the world in nanotechnologies.
The Iranian nuclear program was launched in the 1950s. Iran is the 7th country in production of uranium hexafluoride. Iran now controls the entire cycle for producing nuclear fuel. Iran's current facilities includes several research reactors, a uranium mine, an almost complete commercial nuclear reactor, and uranium processing facilities that include a uranium enrichment plant.