Around 1504 to 1508 Henlein did make a watch; a small, drum-shaped "Taschenuhr". It could run for forty hours before it needed rewinding. They were small enough to be worn around the neck, or carried in a bag or pocket. His watch only had an hour hand.
Microfabrication
Microfabrication is making things which are very small. The earliest micromanufacturing was used to make the different parts of a computer circuit board.
Cavity magnetron
The cavity magnetron is a high-powered vacuum tube that makes microwaves using the interaction of a stream of electrons with a magnetic field. Electrons pass by holes (cavities), and the resonance creates microwaves, like blowing air on a flute creates sound (sound waves) of a certain pitch. The 'resonant' cavity magnetron type of the earlier magnetron tube was invented by John Randall and Harry Boot in 1940. The high power of pulses from the cavity magnetron made centimetre-band radar practical. Shorter wavelength radars allowed the finding of smaller objects. The small cavity magnetron tube made the size of radar sets much smaller so that they could be put into in aircraft and ships used to find submarines. At present, cavity magnetrons are commonly used in microwave ovens and in various radar applications.
Sanghar
Sanghar () is a city in the Sindh province of Pakistan. The city is headquarters of Sanghar District and Sanghar Taluka (a subdivision of the district). It is an agricultural town about 265km from Karachi. Unfortunately, there is no railway station and airport in the city. But the city does have road links with Hyderabad, Nawabshah, Mirpur Khas and other major cities of Sindh.
Dadu, Pakistan
Dadu () is town in Sindh, Pakistan. Dadu is the capital of Dadu District. The town is located at 26°44'0N 67°47'0E with an altitude of 24 metres (82 feet) and is divided into three Union councils.
Hyderabad City Taluka
Hyderabad City Taluka is an administrative subdivision (taluka) of Hyderabad District in the Sindh province of Pakistan. Hyderabad District is divided into 4 talukas, the Urban area around the capital Hyderabad is part of Hyderabad City Taluka.
The Taluka of Hyderabad city is administratively subdivided into 11 Union Councils.
During British rule the city of Hyderabad became the headquarters of Hyderabad Taluka - and for a time was part of the Bombay Presidency of British India.
According to the 1901 census, the taluka contained only one town - the capital, Hyderabad (population, 69,378). The taluka also at this time contained 98 villages and the population was 138,021, compared with 122,507 in 1891.
Hyderabad
Hyderabad can mean more than one city.
Hyderabad Taluka (rural)
Hyderabad Taluka (rural) is an administrative subdivision (taluka) of Hyderabad District in the Sindh province of Pakistan. Hyderabad district is subdivided into 4 talukas, the Urban area around the capital Hyderabad is part of Hyderabad City Taluka.
The rural Taluka of Hyderabad is administratively subdivided into 11 Union Councils, these are:
Hatri
Hatri is a Union Council of Hyderabad Taluka (rural) in the Sindh province of Pakistan. It has a population of 29,719, and is located at 25°28'0N 68°24'0E lying to the north-east of the district capital - Hyderabad.
Masu Bhurgri
Masu Bhurgri is a Union Council of Hyderabad Taluka (rural) in the Sindh province of Pakistan. It has a population of 24,362. It is located at 25°30'0N 68°28'0E to the north-east of the district capital - Hyderabad.
Moosa Khatiyan
Masu Bhurgri is a Union Council of Hyderabad Taluka (rural) in the Sindh province of Pakistan.
Haji Sawan Khan Gopang
Haji Sawan Khan Gopang is a Union Council of Hyderabad Taluka (rural) in the Sindh province of Pakistan. It has a population of 24,005.
Tando Qaiser
Tando Qaisar is a town and Union Council of Hyderabad District in the Sindh province of Pakistan. It is at 25°22'60N 68°31'0E to the east of the district capital Hyderabad.
Tando Hyder
Tando Hyder is a town and Union Council of Hyderabad District in the Sindh province of Pakistan. It is part of the rural Taluka of Hyderabad and is located at 25°22'60N 68°25'60E and lies to the east of the capital Hyderabad.
Husri
Husri is a town and Union Council of Hyderabad District in the Sindh province of Pakistan. It is part of the rural Taluka of Hyderabad. It is located at 25°19'0N 68°25'0E and is south-east of the capital Hyderabad.
Moolan
Moolan is a town and Union Council of Hyderabad District in the Sindh province of Pakistan. It is part of the rural Taluka of Hyderabad.
Tando Fazal
Tando Fazal is a town and Union Council of Hyderabad District in the Sindh province of Pakistan. It is part of the rural Taluka of Hyderabad and is located at . It is south-east of the capital Hyderabad.
Tando Jam
Tando Jam (ٽنڊوڄام) is a town and Union Council of Hyderabad District in the Sindh province of Pakistan. It is at 25°25'60N 68°31'60E and is about 20 km away from Hyderabad city and 5 km from Tando Qaiser. It is on the Hyderabad to Mirpurkhas Road.
Jacobabad
Jacobabad is the capital city of Jacobabad District in the Sindh province of Pakistan. The city is also the administrative centre of Jacobabad Taluka, a subdivision of the district. The city itself is subdivided into 8 Union Councils.
Jacobabad is located at . The city is crossed by the Pakistan Railways and many main roads of the province. Jacobabad is said to be one of the hottest cities in Pakistan.
During British rule, as part of British India, the town was the headquarters of the Upper Sind Frontier District of the Bombay Presidency. It was famous for having the highest temperature in the Indian Subcontinent. In June the temperature is between 120° and 127 °F (49 to 53 °C).
The town was founded near the village of Khangarh in 1847 by Brigadier General John Jacob. General Jacob died here in 1858 and the city still bears his name.
Upper Sind Frontier District
Upper Sind Frontier District was a district of the Bombay Presidency during British Rule in what is now the Sindh province of Pakistan. Sind is an old spelling of Sindh.
The district was the northernmost part of Sindh. It was bordered to the north and west by the Dera Ghazi Khan District of the Punjab and by Baluchistan, on the south by Sukkur District, and on the east by the river Indus.
The District contained one town, Jacobabad, and 390 villages. According to the 1872 census it had a population of 115,050. In 1881 the population was 145,180. In 1891 the population had risen to 174,548. According to the 1901 census the population was 232,045.
The increase in 1901 was the largest. This was due to immigration from Baluchistan and the Punjab as well as a change in the borders of the district. According to the 1901 census, the main language was Sindhi. Sindhi was spoken by 165,110 people in 1901 (71 per cent). The Baluchi and Siraiki languages were also spoken in all parts of the District. Muslims formed 90 per cent of the total population and Hindus 9 per cent.
Jacobabad was the capital of the district. The district was subdivided into five talukas:
Jamshoro
Jamshoro () is the capital city of Jamshoro District in the Sindh province of Pakistan. It is on the right bank of Indus River. It is about northwest of the city of Hyderabad.
Khairpur, Pakistan
Khairpur (, khīr´poor) is the twelfth largest city in the province of Sindh in southeast Pakistan. Today it is the capital of Khairpur District . It was once the capital of the former princely state of Khayrpur.
According to the 1998 census, 102,188 lived there. At the 1981 census, there were only 61,447.
Khayrpur (princely state)
Khayrpur or Khairpur was a princely state on the Indus River in what is now Pakistan, with its capital city at Khayrpur. Together with Bahawalpur to the north-east, the state was included with the Punjab states rather than the neighbouring Rajputana states (now Rajasthan) to the east.
Bahawalpur (princely state)