world's largest alien hunting telescope

China completes world's largest alien hunting telescope 

The Five hundred meter Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Heavenly Eye" or "The Eye of Heaven"), is a radio telescope located in the Dawodaing depression (大窝凼洼地), a natural basin in Pingtang County, Guizhou Province, southwest China . It consists of a fixed 500 m (1,600 ft) dish constructed in a natural depression in the landscape. It is the world's largest filled-aperture radio telescope and the second-largest single-dish aperture after the sparsely-filled RATAN-600 in Russia.

It has a novel design, using an active surface for pointing and focusing, rather than only correcting residual errors and suspending the receiver on a computer-controlled winch system without any rigid connection to the primary.

world's largest alien hunting telescope

Construction on the FAST project began in 2011 and it achieved first light in September 2016. It is currently undergoing testing and commissioning.

In-short: 

Location(s)       -Pingtang County, Guizhou Province, China

Coordinates      -25°39′10.5″N 106°51′23.7″E Coordinates: 25°39′10.5″N 106°51′23.7″E

Wavelength      -10 cm to 4.3 m:11[3]

Built                -2011–2016

First light         -25 September 2016

Telescope style  -Deformable fixed primary

Diameter           - 500 m (physical)

Collecting area   -70000 m2

Focal length           -140 m (f/0.466):12

You may Like to visit -

1. Istambul-   https://youtu.be/QRD5lrenLxM

2.Hong kong-  https://youtu.be/4EQdsCyFz9A 

3.paris -   https://youtu.be/WAdb62Q61Bg 

4.Largest Telescope -  https://youtu.be/Nh58SPiAB2Q

Read More

Paris Travel Vacation Guide

*Best Times to Visit Paris
The best time to visit Paris is from June to August, when the weather is just about parfait (perfect). Average highs are in the mid 70s and there are long days of sunshine. Unfortunately, summer is also the most crowded time — and the most expensive. For a significant drop in tourism, plan a trip in the fall or spring. To save some money on your flight and hotel, pack your most stylish heavy jacket (this is Paris, after all) and visit in the winter.

You may like to visit-
*Istambul-  
*Hong kong-  

September-November
Starting in late September, Paris' hotels make moderate rate cuts. Average temperatures can range from the 40s to the 60s, so pack accordingly.

December-February
Paris' low season sees temperatures that range from freezing to around 40 degrees. Heavy — yet chic — coats are necessary this time of year. If you dare defy the chilly weather, you can save quite a few euro on your hotel and flight.

March-May
Along with fall, spring is Paris' other shoulder season, and these months lure travelers with slight price cuts on hotel rooms. Temperatures usually span the 40 to 60 degree range, and afternoon rains are a bit more frequent.

By train
Paris is well connected to the rest of Europe by train. There is no central station serving Paris and the six different stations are not connected to each other. You will probably want to know in advance at which station your train is arriving, so as to better choose a hotel and plan for transport within the city.
• Gare du Nord- Métro: Gare du Nord - TGV trains to and from Belgium, the Netherlands, and Cologne, Germany (Thalys), and the United Kingdom (Eurostar) and regular trains from Northern Europe. Passengers coming in by train from Charles de Gaulle Airport can also get off here.
• Gare d'Austerlitz-Métro: Gare d'Austerlitz - regular trains to and from the centre and southwest of France (Orléans, Limoges, Toulouse the long way), Spain and Portugal and arrival of majority of the night trains.
• Gare de l'Est-Métro: Gare de l'Est - ICE/TGV to and from Luxembourg, Saarbrücken, Kaiserslautern, Frankfurt, and Stuttgart, Munich in Germany.
• Gare de Lyon- Métro: Gare de Lyon - regular and TGV trains to and from Southern and eastern France: French Alps, Marseille, Lyon, Dijon, Switzerland (by TGV Lyria): Geneva, Lausanne, Neuchatel - Bern - Interlaken, Basel - Zurich, and Italy.
• Gare de Bercy-Métro: Bercy. Overnight trains from and to Italy and regular trains to Auvergne.
• Gare St Lazare -Métro: St-Lazare - trains to and from Basse-Normandie, Haute-Normandie.
• Gare Montparnasse- Métro: Montparnasse-Bienvenüe - TGV and regular trains to and from the west and south-west of France (Brest, Rennes, Nantes, Bordeaux, Toulouse the fastest way and Spain).
You may like visit-
*Istambul travel giude   
*Hong kong travel giude   

Read More

Hong kong Travel Guide

*Morocco Sahara travel adventure - https://youtu.be/vLcKshJ8fJk
*Istambul travel adventure - https://youtu.be/QRD5lrenLxM

Best Time To Go
Owing to a subtropical climate, Hong Kong’s sweltering summer months are sauna-like, and there are frequent monsoons and typhoons during that time of year. Prime timing for a trip falls around mid-October to late December, when temperatures are still mild and Chinese tourists swarming in for the week-long national holiday have left.

Transportation
Hong Kong runs a sophisticated system of trains and buses between Hong Kong Island, Kowloon and the New Territories, while 27 ferry routes take care of transportation to outlying islands. By far the most interesting option is the 110-year old trams that breeze through the main island's most iconic areas, and getting on these retro double-deckers will only cost you $0.40. All the aforementioned rides can be paid with a simple tap of the Octopus card, which can be topped up at metro stations and convenience stores. Taxis are also relatively affordable, though it can be hard to convince cab drivers to cross the harbor. Opt for an Uber when all else fails.

WeatherJuly is the hottest month, with an average high of 84°F (29°C). January is the coldest month, with an average high of 61°F (16°C).

Know Before You Go
Due to the ubiquity of counterfeit thousand-dollar notes on the market, most shopkeepers are hesitant to accept denominations larger than HK$ 500. Still, set aside cash for dining—many restaurants do not accept credit cards.

Language
Cantonese, Mandarin, English

Electric
Type G (three-prong plug)

Currency
Hong Kong dollar (HK$)

More Travel videos 
Morocco Sahara travel adventure - https://youtu.be/vLcKshJ8fJk
Istambul travel adventure - https://youtu.be/QRD5lrenLxM

Read More

Morocco Sahara travel adventure

For Live Experience

Visit our Youtube channel  

Morocco Travel Guide,Morocco Tourism & Vacations, Morocco Trip

-----------------------------------------------------------
Travel Videos HD, World Travel Guide.
----------------------------------------------------------- 
Morocco is a North African country that has a coastline on both the North Atlantic Ocean and the Mediterranean Sea. It has borders with Western Sahara to the south, Algeria to the east and the Spanish North African territories of Ceuta and Melilla on the Mediterranean coast in the north. It is just across the Strait of Gibraltar from Gibraltar. 
------------------------
See in Morocco
------------------------
At just a few hours from the main European cities, Morocco has everything to overwhelm you with the amazing colors, smells and sounds of Islamic Africa. Imagine bustling souqs and spice markets, stunning mosques, white-washed sea side towns and medieval city centers. With panoramic views varying from snow-covered peaks in the High Atlas to the endless sand dunes of the Sahara, no-one ever has to be bored in this beautiful country.

Movie-famous Casablanca might be the most famous of Moroccan cities and is home to the huge Hassan II mosque, the second largest mosque in the world with only the Grand Mosque of Mecca surpassing it. Many travelers quickly leave this vibrant and modernist metropolis on a search for a more traditional Moroccan experience, but admiring the impressive colonial architecture, Hispano-Moorish and art-deco outlook of the city center is actually time well spent. Marrakesh, known as the "Red City" and probably the most prominent former imperial capital, will leave you with memories to cherish for life. Spend your days wandering through the lively soups, admiring the old gates and defensive walls, see the Saadian Tombs, the remnants of the El Badi Palace and visit the Koutoubia Mosque with its 12th century minaret. However, when evening falls make sure to head back to Jamaa el-Fnaa, the largest square in Africa, as it fills up with steam-producing food stalls. Indulge in the bustling activity there, listen to Arabic story tellers, and watch magicians and Chleuh dancers. Fez, once Morocco's capital, is another gorgeous imperial city. Get lost in its lovely labyrinth of narrow Medieval streets, enjoy its huge medina, see the beautiful city gates, the ancient University of Al-Karaouine and the Bou Inania Madrasa. Also, make sure to visit a traditional leather tanning factory. The city of Meknes is often called the "Versailles of Morocco" for its beauty. Its lovely Spanish-Moorish style center is surrounded by tall city walls with impressive gates and you'll be able to see the 17th century blend of European and Islamic cultures even today.

For a more laid-back experience of city life, catch a sea breeze at Asilah or lovely Essaouira. The blue-washed town of Chefchaouen is an old time travelers’ favorite and a great starting point to explore the impressive High Atlas Mountains. Climb Jebel Toubkal, the highest peak in North-Africa, passing lovely adobe villages and exploring the gorgeous Ourika and Amizmiz valleys on the way. The stunning panoramic view from the top will make it worth every bit of your effort to get there. Other praised hiking routes lead through the beautiful Ameln Valley in the Anti-Atlas and the wooded Rif Mountains in the very north.

Hop on a camel back for a trip through the golden Sahara sand dunes at Erg Chebbi, near Merzouga. Spend the night in a desert tent, under the incredibly starred sky. The Sahara is also accessible near the town of Zagora; it's easier to get to from Marrakech but doesn't have the imposing dunes of Erg Chebbi. Somewhat less easy to reach but therefor also less crowded are the dunes of Erg Chigaga near M'hamid. On your way to the desert, make sure not to miss the stunning Todra gorge near Tinghir. The ancient fortified city of Aït-Benhaddou is another must-see sight. Although rainstorms damage the mud-brick kasbahs time and again, this mostly abandoned village remains an impressive sight and has been the decor for a range of movies, including Lawrence of Arabia and Gladiator.

Do in Morocco
-----------------
Hammams
-----------------
There are two types of Hammam (steam baths) across Morocco. 

The first is the tourist hammam, where you can go and be pampered and scrubbed by an experienced staff member. As these are promoted only to tourists they are the more expensive option with pricing usually around DH 150 for a hammam. They cannot be technically referred to as a proper hammam, but they are nonetheless enjoyable, especially for the timid. Your hotel can recommend a good one.


The second option is to visit a "popular" Hammam. Popular hammams are the places where the locals go. Ask the staff at your hotel where they would go.

Read More

Istanbul Turkey Travel Guide

For Live experience-Visit our youtube channel 

Istanbul (Turkish: İstanbul) is Turkey's most populous city as well as its cultural and financial hub. Located on both sides of the Bosphorus, the narrow strait between the Black Sea and the Marmara Sea, Istanbul bridges Asia and Europe both physically and culturally. Istanbul's population is estimated to be between 12 and 19 million people, making it also one of the largest cities in Europe and the world.We are always with your side through Istanbul Turkey Travel Guide . 

Districts

Sultanahmet-Old City  

Essentially the Constantinople of the Roman, Eastern Roman/Byzantine, and much of the Ottoman periods, this is where most of the famous historical sights of Istanbul are located.

Galata 
Housing many of the nightlife venues of the city, this district includes Beyoğlu, Istiklal Street, and Taksim Square also its own share of sights and accommodation.

New City 
Main business district of the city with many modern shopping malls and districts such as Elmadağ, Nişantaşı, and Etiler.

Bosphorus 
European bank of the Bosphorus dotted by numerous palaces, parks, water-front mansions, and bohemian neighbourhoods, such as Beşiktaş and Ortaköy.

Golden Horn 
Banks of Golden Horn, the estuary that separates the European side into distinctive districts. Eyüp, with an Ottoman ambience, is located here.

Princes’ Islands 
An excellent getaway from the city, made up of an archipelago of nine car-free islands—some of them small, some of them big—with splendid wooden mansions, verdant pine gardens and nice views—both of the islands themselves, and also on the way there.

Asian Side 
Eastern half of Istanbul, with lovely neighborhoods at the Marmara and Bosphorus coasts.
Western Suburbs 
Western chunk of the European Side.

History 
Expanding the ancient Roman colony of Byzantium by the order of the Roman Emperor Constantine the Great, the imperial city of Constantinople was for nearly a thousand years the last remaining outpost of the Roman (later termed Eastern Roman or Byzantine) Empire. It was finally conquered by the Ottoman Sultan Mehmed II on 29 May 1453, an event sometimes used to mark the end of the Middle Ages. It was the nerve centre for military campaigns that were to enlarge the Ottoman Empire dramatically. By the mid 1500s, Istanbul, with a population of almost half a million, was a major cultural, political, and commercial centre. Ottoman rule continued until it was defeated in WWI and Istanbul was occupied by the allies. When the Republic of Turkey was born in 1923 after the War of Independence, Kemal Atatürk moved its capital to the city of Ankara. However, Istanbul has continued to expand dramatically; today its population is approximately 14 million and increases at an estimated 400,000 immigrants per year. Industry has expanded even as tourism has grown.

Get in

Duty Free area, inside Ataturk Airport

 Ataturk Airport

Most planes arrive at Istanbul Atatürk Airport (IATA: IST), 20km west of the city centre. From the airport, there are various options for getting into Istanbul: you can take a taxi (about TRY60 to Taksim. There is no night fare in Istanbul anymore - the price would be the same at midnight or midday. About the same to Sultanahmet), the express bus service run by the local airport service called "Havataş" [1]which departs half-hourly between 4AM-midnight and costs TRY11 (July 2016) to Taksim and Aksaray, the public bus (line #96T) run by İETT costing TRY5 (TRY3.50 with İstanbulKart), which has fewer departure times now, due to Havatas, which is also a municipality engaged bus service. At the bus stop of your final destination, be wary of taxi drivers that come up to you or are overly friendly. Follow locals to a corner where most of the taxis are picking up customers.
Istanbul doesn't have services with local drivers such as Hailo or Lyft for the time being. However there is a service called Welcome Pickups, that selects and trains the best taxi drivers and connects them with you, to pick you up from the airport, drive you to your destination and give you a meaningful introduction to the city.
Then, there is the metro (06:00-00:05) (signposted "light rail" in the airport, when you get outside the baggage claim it's about a 10 minute walk in the airport to the metro line. Just follow the signs), which will take you directly to the Otogar (bus station) or to numerous stops within Istanbul (Aksaray in the city centre is the last stop, transfer stations for tram heading for deeper into old city is available at Zeytinburnu and Aksaray). It costs TRY3, by token (+an extra TRY4 when boarding the tram) and getting to Aksaray takes around 45 minutes. It is possible to be at your bus departing from Otogar within less than one hour after landing by taking the metro. (Actual travel time on the metro from the Aksaray station to the Airport station was 35 minutes and cost TL 2.15 with the Istanbulkart, January 2016. Obviously allow more time if you need to transfer on the way to the airport and keep in mind that you will have to pay for the transfer.)
When entering the metro station, you need to buy a jeton (token) for TRY4. Just hand the cashier TRY4 and he'll give you a token, or use the automatic dispenser (Jetonmatik), which accepts banknotes (TRY5, TRY10, TRY20) as well as coins. Use 'select' to choose the number of jetons and then push 'ok'. They don't accept credit card or foreign currency here. This will get you on the red metro line (towards Aksaray). From this line, if you are going to Sultanahmet, you can transfer at Zeytinburnu and buy another jeton (TRY4) - see the section on "Istanbulkart" if further travel within Istanbul's metro system will be undertaken. Note that the jeton token here is different than the first one. From Zeytinburnu, take the blue tram line T1, towards Kabataş which passes by: Sultanahmet, Eminönu and Tophane. The trip from the airport to Sultanahmet takes about 45min.
To get from Ataturk to the Asian side of Istanbul, the quickest way is to take a taxi to Bakikoy IDO Iskele (ferry pier), which takes about 10m and costs 20TL, and then take an IDO high-speed catamaran to Kadikoy (20m) or Bostanci (40m) for 7TL. This is much faster and cheaper than a taxi, which could take up to 2 hours if there is a lot of traffic. The boat runs from 7am to 9pm.
Other Notes: Note that people are working on commission at the airport trying to make you use special shuttle buses for very high fees (TRY30+), so for people who wish to travel more economically the Metro/tram-combination is easy and fairly quick, and offers very good value. Travel by metro/tram cost 1 token per trip which is equal to TRY3. No matter how long you travel, it costs 1 token per trip.
Visa: You probably need a visa to enter Turkey, which can usually be obtained online. Check if this applies to you, and apply in advance, at evisa.gov.tr. Do not rely upon any other website, even here at Wikitravel, as the rules may change suddenly as the security situation in Turkey evolves. Also some websites charge extra for no additional service. In general EU Schengen passport holders need no visa to enter, North American and UK residents need a visa costing US$ 20 valid for 90 days, residents of China pay US$ 60 for 30 days, and visa duration and price varies for other nations. Some travelers are not eligible for an evisa and must apply for a conventional visa via their local Turkish Embassy.
Apply at the same time as you book your trip - your 90 (or other) day visa validity will start from your stated arrival day in Turkey. Print it out and keep it with you, as well as a soft copy on your phone. As well as checks when flying, it could be demanded at an internal police check.
In theory you are permitted to arrive at Ataturk airport without a visa and use the visa office or machine to apply there.
Food and drink at the airport may cost up to five times more than in the city proper, like in other international airports. If you are travelling on budget and plan to spend some time at the airport, it may be wise to bring your own meals from town instead of buying them there. If you come from the Metro, there is a supermarket in the tunnel leading to the elevators / stairs to the airport proper where you can do some last-minute shopping.
Sabiha Gökçen Airport[edit]
Istanbul also has a second airport, Sabiha Gökçen International Airport (IATA: SAW), located in the Anatolian side of the city Sabiha Gökçen International Airport.
The cheapest way to arrive from Sabiha Gökçen to the European side of Istanbul is by bus (E10 or E11 lines, from Sabiha Gökçen to Kadiköy) + ferry (from Kadiköy to many ferry stations, including some in the Sultanahmet area). Using Istanbulkart or Akbil (see below), the price is less than TRY7. That's about €2.50 in total. Every other option priced at €10 and above (TRY23 and above-by Feb 2013 rates) makes sense ONLY if you can't use this. Be aware that last ferries are between 10 and 11pm, yet the E10 continues throughout the night.
A pricier option is the Havatas bus connects this airport with Taksim in the city centre for TRY14 (Aug 2014) and takes about an hour and a half (closer to two or more in heavy traffic). There is also a Havatas service to the ferry pier in Kadıköy, a transportation hub of Asian Side, which costs TRY9. If you arrive in the middle of the night, you can move to the departure hall after passing customs and rest on very comfortable seats — you will even find coin-operated Japanese massage chairs. Then, at 05:00 the first Havatas bus will take you to town. The Havatas bus schedule is sometimes linked to the arrival/departure times of planes.
Various private operators offer internet bookable shared minibuses to central locations — a good choice when arriving late. A typical price being €90 for 4 people to a hotel in Laleli. A taxi to Sabiha Gökçen airport from Taksim, which lies around 50km from the airport, takes c. 35 minutes at 03:30 with no traffic. The meter will show c. TRY75, plus there is c. TRY6 in tolls. Note the security screening is before the check-in counters, so add some extra time to make the cut-off times (45 minutes for international, 30 for domestic).
Beware of the company running the "Hotel Information" office in the Sabiha Gökçen airport which offers "shuttle-to-hotel" services from €15 (they pretend to make a discount based on your group size, you can get it as low as €12.50 for 4 people) because their drivers are totally uninformed about any hotel address and they may get lost/the trip may take 2-3 times more than normal because of their lack of knowledge with hotel addresses.

By train

Sirkeci Station in busier times

There are no mainline trains in central Istanbul. Trains to Europe via Bucharest or Sofia historically ran from Sirkeci station, but this line is disrupted by the Marmaray project and by other work in Bulgaria. There are replacement buses from Sirkeci, at the usual departure time of 10 pm, to link with the westbound train, and returning from the incoming train around 8 am (often very late). As the engineering work grinds on this link has variously been at Halkali at the city’s edge, at Cerkezkoy 115 km away, or at Kapikule on the Bulgarian border. The project has been interminably delayed and (as at 2016) no completion is in sight. Sirkeci was also the terminus for international trains to Thessaloniki and regional trains to Edirne and these too are suspended indefinitely (though a daily train runs between Halkali and Edirne). So the station has no trains, but the ticket office remains open. Also just outside is the escalator down to Sirkeci Marmaray station, for the metro across the Bosporus.


Sirkeci Station in busier times
You probably need a visa in advance to enter Turkey by train – see the note on visas in the section on Ataturk airport.
Trains east to Ankara and beyond historically ran from Haydarpasa, Asian side of the Bosporus, but this closed in 2012. High speed trains (“YHT”) now run from Pendik, 25 km east of city centre. The simplest way there is by Marmaray line under the Bosporus then metro to Kartal, then bus 251 or taxi the final 5 km to Pendik station. Allow at least 90 minutes for all this, and note that the first metro of the morning will not get you to Pendik in time for the first Ankara train at 6.30 am. However once Pendik is reached, it has a frequent service to Eskişehir (2 hours) and Ankara (3½ hours), and a twice daily service to Konya (4½ hours). Also Pendik is convenient for Istanbul Sabiha Gokcen airport (10 km, taxi or bus) so consider this route if you intend to fly in and immediately head east. Road transport for Pendik sets down, and picks up to return towards city centre, on the north side of the station. Walk through the subway to south side and turn right for the ticket office, platform access and other station facilities.

Haydarpasa Station has closed
For timings and reservations (strongly recommended) see Turkish railways website at tcdd.gov.tr. For destinations in eastern Turkey, take the YHT to Ankara and change, but see that page for disruptions to those services, expected to last till 2018. For Adana, travel via Konya. The international trains to Iran, Syria and Iraq are suspended indefinitely, but the train to Georgia may resume in 2017.
It is not known when the YHT line might be completed from Pendik into the centre of Istanbul, nor whether there will be a single central terminus or separate European and Asian stations as before. But the Marmaray line was designed to take mainline passenger and freight trains as well as the metro

Read More