Organic reactants rapidly produce plastic foam

Adding trichlorofluoromethane to polyether resin accelerates the reaction between the resin and toluene diisocyanate. This accelerated reaction instantaneously produces a plastic foam of low density and uniform porosity needed to provide buoyancy for flotation recovery of instrument packages dropped into the sea from spacecraft

City Wide Adhan as heard from near Masgid el-Muayyad Sheikh on 08-08-2010 at 4:36pm: ‘Asr Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This ‘Asr (afternoon) adhan was recorded near el-Muayyad Sheikh Mosque in the el-Hussein neighbourhood in Islamic Cairo. The recording captures the voices of the muezzins of Cairo, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location.Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

City Wide Adhan as heard from between Masgid Sultan Hassan and Masgid Al-Rifaai on 01-27-2010 at 12:07pm: Dhurh Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This Dhurh (mid-day) adhan was recorded in the neighbourhood of Sayeda Aisha between two of the biggest and most famous mosques in Cairo. The recording captures the voices of the muezzins of the neighbourhood and beyond, all of whose calls begin a few seconds apart. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location.Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

City Wide Adhan as heard from near Masgid Sheikh Abdullah on 02-08-2010 at 5:13am: ‘Fajr Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This Fajr (dawn) adhan was recorded near the Sheikh Abdullah Mosque in the neighbourhood of Gamaliya in Islamic Cairo. The recording captures the voices of the muezzins of Cairo, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location. (While each of the 10 locations generally only has one adhan represented here, the Gamaliya location has more elaborate documentation)Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

Masgid Sheikh Abdullah: Sheikh Mohamed: Adhan Recitation

Sheikh Mohamed demonstrates the adhan on February 7, 2010 at Sheikh Abdullah al Misbah'ah al-Husseini Mosque in Gamaliya. He has been a muezzin here for 20 years.Video & audio recordings of 6 muezzins reciting the adhan (Muslim call to prayer), with supporting photographs of muezzins and their respective mosques.Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

City Wide Adhan as heard from near Masgid Sheikh Abdullah on 08-23-2009 at 3:34pm: ‘Asr Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This ‘Asr (afternoon) adhan was recorded near the Sheikh Abdullah Mosque in the neighbourhood of Gamaliya in Islamic Cairo. The recording captures the voices of the muezzins of Cairo, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location. (While each of the 10 locations generally only has one adhan represented here, the Gamaliya location has more elaborate documentation)Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

Masgid Sultan Hassan: Sheikh Said: Adhan Recitation

Sheikh Said demonstrates the adhan on February 1, 2010 at the great Sultan Hassan Mosque in Sayeda Aisha. He has been a muezzin here for 8 years.Video & audio recordings of 6 muezzins reciting the adhan (Muslim call to prayer), with supporting photographs of muezzins and their respective mosques.Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

City Wide Adhan as heard from Road 9 in Ma’adi on 01-19-2010 at 3:00pm: ‘Asr Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This ‘Asr (afternoon) adhan was recorded on a rooftop on Road 9 in the neighbourhood of Ma’adi. The recording captures the voices of the muezzins of Cairo, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location.Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

City Wide Adhan as heard from near Masgid Sheikh Abdullah on 02-07-2010 at 5:36pm: Maghrib Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This Maghrib (sunset) adhan was recorded near the Sheikh Abdullah Mosque in the neighbourhood of Gamaliya in Islamic Cairo. The recording captures the voices of the muezzins of Cairo, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location. (While each of the 10 locations generally only has one adhan represented here, the Gamaliya location has more elaborate documentation)Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun

City Wide Adhan as heard from near Masgid Sheikh Abdullah on 08-20-2010 at 7:54pm: ‘Isha Adhan

Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This ‘Isha (night) adhan was recorded near the Sheikh Abdullah Mosque in the neighbourhood of Gamaliya in Islamic Cairo. The recording captures the voices of the muezzins of Cairo, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location. (While each of the 10 locations generally only has one adhan represented here, the Gamaliya location has more elaborate documentation)Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun