Thursday, December 24, 2009

Tata Motors admits trouble through brake systems in DTC buses


Rubbishing previous reports stating that Delhi awful roads, and not defective maintenance, was causing fires and smokes in its buses, Tata Motors, dealer of low-floor Delhi Transport Corporation (DTC) buses, admitted that the vehicle had a trouble with the brake system. However, the company maintained that there were no natural design and developed defects.

“There have been eight incidences reported of buses catch fire starting December 3, which has encouraged corrective action,” the company said, adding up that it would suffer a safety check for the buses which would be finished by January 31.

The Delhi administration on December 14 had compulsory a fine of Rs 4 crores on Tata Motors for not appropriately maintaining the low-floor buses that it artificial for the DTC.Chief Minister Sheila Dixit has said that a expense of Rs 150 crore to the Tatas had also been suspended.

The government said it would file an illegal case against the company if the bus problems sustained.

Friday, December 11, 2009

Airbus’ A400 military transport acquires to the air for the primary time


At 10:15 local time this morning in Seville in Spain, the Airbus A400M military transport model took to the air for the first time. For the sake of prosterity, the experiment pilots be Chief Test Pilot Military, Edward “Ed” Strongman, 60, as captain and Experimental Test Pilot Ignacio “Nacho” Lombo, 43, in the co-pilot’s seat. There were also four engineers on plank – Jean-Philippe Cottet, Eric Isorce, Didier Ronceray and Gerard Leskerpit – who will in the middle of them seem after the powerplants, aircraft systems and handling traits of the aircraft through the test program.

According to the Airbus press release, the crew have logged further than 31 000 hours of flight time among them. Fine, the outcome is that the aircraft has made that leap from amazing that had only ever flown on paper to real flight. Moreover late for the South African Air Force, although, who, having seen their much-anticipated substitute for the ageing C-130s snatched from under their noses just a few weeks ago, will now have to content themselves by scrutiny the world’s latest military freighter go during its paces.

Wednesday, November 25, 2009

Transport for London One ticket for London as Oysterisation of rail and river confirmed

Oyster pay as you go will be accepted on National Rail services from 2 January 2010.Mayor announces Oyster pay as you go will be accepted on Thames Clipper commuter services from today.

The Mayor of London, Boris Johnson, Transport Secretary, Andrew Adonis, and the Train Operating Companies serving the Capital, today confirmed that the hundreds of thousands of passengers who travel on National Rail services within Greater London will be able to use Oyster pay as you go from 2 January 2010.

The extension of the ticketing system will cover all commuter rail routes within Greater London, and will particularly benefit commuters living across south and northeast London, where Oyster pay as you go is not currently accepted on the vast majority of rail services.

The Mayor has also confirmed that Oyster pay as you go will be accepted on all Thames Clippers river services from today, making river travel more convenient for thousands more Londoners and helping to boost usage of London's underused thoroughfare.

Saturday, November 14, 2009

Awards for Shanghai student's sterilization invention

Guo Haijun in the lab at Luwan Senior High School.A local high school student's invention of an ultraviolet sterilizer to kill germs in vehicles has won him local and international awards and may be put to use in public transport in the future.

Guo Haijun, 18, has just returned home after winning two prizes at the 2009 Intel International Science and Engineering Fair, the world's largest pre-college science competition, held in the United States last month.Guo, a senior student at a Luwan District high school, has applied for a patent for his invention and some taxi companies have already shown interest in the innovative device.

"I came up with the idea about two years ago," Guo said. "Many taxi drivers and passengers are prone to coughs and flu."

Guo suspected that microbe contamination in the public vehicles could be the cause. He carried out studies on public transport with his schoolmates from March last year to February this year. They collected air samples from three taxis companies, eight bus routes and four Metro lines over the past year.

"We collected more than 7,000 samples from 1,280 taxis, buses and Metros," he said.

Using a local university laboratory, they found bacteria responsible for causing sneezing and the common cold in quantities exceeding the national standard in many vehicles. Germs in taxis were 5.12 times more concentrated than national standards, while those in buses were 3.04 times worse. Microbes in subways were found to be within the national limit.

"My device can kill 83 percent of bacteria in vehicles within 30 minutes," Guo said. "It costs about 80 yuan (US$12)."

Using three ultraviolet lamps and a timer taken from a fan, Guo created a device small enough to fit unobtrusively into a taxi.Drivers can operate the device when outside the vehicle using a remote control to avoid exposure to ultraviolet rays.Guo applied for the patent for the device last year, but he has no intention of selling it yet.

Wearing a pair of glasses, a school uniform and a pair of white running shoes, Guo looks no different from his peers - who view him as a future scientist.The invention has brought him domestic science prizes, but Guo paid a hard price for it - in order to devote time to the invention, he gave up playing the violin.

"Most of the time, research and experimenting are boring," Guo said. "But it becomes more exciting when you start to make a little progress."

Tuesday, November 03, 2009

Japan Joins Green Asia and Pacific Aviation Partnership


Japan became the latest partner in the Asia and Pacific Initiative to Reduce Emissions (ASPIRE), which is designed to make aircraft operations in the region more efficient in order to reduce the emission of greenhouse gases.

“This is an important milestone in our collective effort to lessen aviation’s environmental footprint,” said FAA Administrator Randy Babbitt, who signed the agreement along with Ryuhei Maeda, the Director General of the Japanese Civil Aviation Bureau (JCAB), today in Osaka. “We have all pledged to adopt and promote best practices that will benefit the environment.”

Japan joins the FAA, Airservices Australia and Airways New Zealand as partners to ASPIRE, which began in February 2008. Goals of the partnership include identifying and sharing procedures that produce environmental benefits, quantifying green enhancements in the region over the last decade, and establishing fuel and emissions baselines for current operations, along with future performance benchmarks.

A Japan Airlines flight from Honolulu to Osaka preceding the signing ceremony is the latest ASPIRE flight demonstration to reduce emissions and to save time and fuel by utilizing the most efficient, advanced technologies and procedures. These include procedures such as just-in-time fueling, using preferred routes over the ocean, optimizing speed and altitude and using a tailored-arrival approach to the destination airport.

There have been three previous ASPIRE demonstration flights. An Air New Zealand 777 flying from Auckland to San Francisco last September saved 7,700 pounds of fuel and 27,700 pounds of carbon dioxide. A Qantas A380 flying from Los Angeles to Melbourne last October saved 19,600 pounds of fuel and 61,700 pounds of carbon dioxide. And a United 747 flying from Sydney to San Francisco last November saved 10,500 pounds of fuel and 33,100 pounds of carbon dioxide.

Monday, October 05, 2009

Funny driving


This is a new type of invention in transport. It is a different type of driving, the car is designed in the form of shoe which shows diverse image from the other cars.

Wednesday, September 23, 2009

One-Litre Car from Volkswagen

The world's first One liter car








This is a great Innovation of Volkswagen launched in 2010. It's named as the One-Litre because it can pass through 100km/litre (283mpg), has two seats and powered by a 330cc single-cylinder diesel engine.

Expect Volkswagen can keep the price point down so it will be reasonable to majority of people. Or else it will turn out to be one of those expensive nice to have toys.

Friday, September 18, 2009

Smart Car

This is about GM plus Segway’s new project P.U.M.A.


Carsharing 2.0 would mostly include on demand pick-up or drop-off, electric vehicles that charge while parked and automatic driving or parking. That last one would probable be carsharing 3.0 or 4.0 or 5.0.


This vehicle is part of a tendency of new vehicles planned particularly for cities. It makes the Smartcar appear like a Hummer! while stored it takes up a part of the space of a compact car. It’s rotating radius is zero, meaning similar parking is as simple as rotating your head. It is totally electric. One more disapproval, is that there is no cargo space, but according to the depiction below, a small cargo like to the Smartcar’s would extra than likely be incorporated in a production model.

Thursday, September 10, 2009

Aerorider

This is not the tricycle you rode behind the driveway like a child. The Aerorider Sport is a part-electric, fraction muscle-powered cross under expansion in the Netherlands. Through a number of electric help, a traveler can handle to driove at 45 mph. Its aluminum unbreakable fiberglass corpse is lightweight (about 130 pounds) but protect the rider from the essentials. The Aerorider Sport’s 48-volt battery be able to last wherever from 12 to 60 miles, depending on the land traveled and the dimension of the battery set. The vehicle happily holds one driver and baggage. Its designers say the vehicle’s 4-foot height, headlight, tail lights and stop lamp make sure it’s safely able to be seen to other drivers. It includes a airing system and an electric wiper to assist give the driver a clear outlook, as well as two adaptable back view mirrors to stay an eye on travel.

According to Aerorider Company proprietor Bart de Wert, a little number have been shaped to date for trying and encouragement. A wholesome human-powered account of the Aerorider Sport known for the Sunrider is obtainable for acquire.


Friday, September 04, 2009

Women in Automobile Inventions

Prior to the manufacture of Henry Ford's Model A, Mary Anderson was granted her first patent for a window cleaning device in November 1903. Her invention could clean snow, rain, or sleet from a windshield by using a handle inside the car. Her goal was to improve driver vision during stormy weather.

The automobile gave women ample opportunity for invention. In 1923, of the 345 inventions listed under "Transportation" in the Women's Bureau Bulletin No.28, about half were related to automobiles and another 25 concerned traffic signals and turn indicators. Among these inventions were a carburetor, a clutch mechanism, an electric engine starter, and a starting mechanism. During the 1930s, Helen Blair Bartlett developed new insulations for spark plugs. A geologist by training, her knowledge of petrology and mineralogy was critical in the development of innovative uses of alumina ceramics.

Wednesday, August 26, 2009

Thursday, August 20, 2009

Urban Improvement and Transport


The City of Salisbury's Urban Development and Transport Policy Direction is to apply innovative planning policies and strategies to optimise ecologically sustainable urban development within the City, and to encourage and facilitate integrated transport networks and reduce reliance on fossil fuel motorised forms of transport.

Thursday, August 06, 2009

The history of transport

The first invention of a person was maybe a stick, which a person began to use as a staff. But people needed to cross rivers without getting wet. And more than 4000 years ago the first means of transport was created, when prehistoric people learned to tie together sticks and logs creating a raft in such way. Later rafts were developed to make the transportation more comfortable and safe.

In Ancient Egypt people were building rowing boats using papyrus. They were wide with flat floor, with several matches. Later Ancient Egyptians started to use wood to build their first boats.

So the most ancient means of transport is water transport. And raft is the father of all boats. But Egyptians were not the only one to travel by water. In ancient Phoenicia people built big sea ships. They even had several kinds of ships: military and trade ones.

Later first ships appeared and developed a lot in Ancient Greece and Rome. They were much more comfortable and safe than those of Ancient Egypt. The 10th century was the century of prosperity of water transport.

The first wheel was one of the greatest inventions of humanity that allowed the development of many kinds of transport. It was invented in Mesopotamia in 4 b.c. It was a disk put on the axle. And it was the base of creating of the first automobile.

The first car was created in 1770 by the French scientist. Later in 1886 two German scientists created the car with explosion engine. And from that time this means of transport became very popular increasing competition with trains and ships. Nowadays it is impossible to imagine the world without cars.

The first steam locomotive was created by English inventor. But it couldn't be used because it was too heavy. Later it was developed and updated and was used for cargo transportation. And day by day new locomotives appeared until the plant of production of locomotives was created in 1823. And two years later the first passenger railway appeared.

Trains were developing but they lost their popularity with the spread of cars in the world. But they were developed a lot and updated so much that the result of it was the appearance of underground. The first underground system was built in London in 1863. And its length was only 3, 6 kilometres. After it underground system appeared in NY, Paris, and Budapest.

Trams are not so popular as they were later. This public transport at short distances was substituted by modern buses and cars. But this means of transport is ecological. The first tramway was created in Berlin in the 80-s of the 19th century. Its length was 2, 5 kilometres and a tram was moving with a speed 30 km/hour. At once this transport became popular for transporting people over in boarders of the city. Some cities still use it.
source : http://www.theironmonsters.com/thehistoryoftransport.html

Friday, July 31, 2009

Personal Pod Transport Is The Future


It seems like the idea of pod transportation is emerging strong. To be honest, it looks good to me to. A different type of transportation that can lower traffic, lower pollution, and help get to your destination faster.

The latest idea in pod transportation is the Personal Rapid Transit, PRT. PRTs are systems of independent vehicles that provide private, on-demand, nonstop travel for people or small freight, riding on small, overhead guideways. The cars run above existing roads and are powered entirely by electricity. Advocates of pod transport say it offers the convenience and personal experience of an auto without the gasoline, insurance, pollution, accidents, or congestion.

Another splendid point to this type of transportation is the amount of money saved. It would take 25 to 40 million to build a mile while it takes 100 to 300 million to build a road. As you can see, the future really is here and projects for the PRT are already on the way.
source : internetautoguide.com/6299533/industry-news/personal-pod-transport-is-the-future/index.html

Thursday, July 23, 2009

Transport


This is designed by Harsha Vardhan this advanced concept motor vehicle is destined to work with power generated through magnetic fields beginning it’s electrical motor.

Friday, July 17, 2009

A Unicycle That’s a Motorcycle?

If you thought balancing on two wheels was hard enough, try balancing on one wheel. When we go to the circus, typically, we’ll see a few clowns riding unicycles. Isn’t it neat to see them do that? Well, now you can do that too, with the world’s first unicycle motorbike. A young, 18 year-old inventor named Ben Gulak has come up with a motorbike called the Uno that still uses two wheels, but they are paired side by side to create one wheel. Additionally, this unicycle motorbike uses something called gyroscopic technology (similar to what is used in the infamous Segway) in order to help the motorbike stay up without falling over. So, balancing might not be a hard as it looks.And it’s Even Eco-Friendly Too!

In order to operate this contraption, the rider leans forward to accelerate to speeds of 25mph. In order to slow down, you need to lean back. If you’re worried about what other “complicated” things there are about it, perhaps the most confusing feature is the switch to turn it on (which only has two positions: on and off). While this motorbike may look incredibly awkward, it is also incredibly eco-friendly. The motorbike runs on electricity and is small enough and light enough to be brought inside and carried around.

Gulak said that the inspiration for the bike came from visiting China and seeing all of the smog there. Part of the concept for the bike stemmed from his thinking that if it didn’t look cool, people wouldn’t be interested. The owner also reassures people that they don’t have to worry so much about the balancing part; the bike is actually self-balancing. Kudos to Gulak for this creative invention. Who knows- in a few years, you might be riding a Uno to work!
Source : nationaltransportllc.com/blog/a-delicate-balancing-act-a-unicycle-thats-a-motorcycle

Wednesday, July 08, 2009

The Future Of Personal Transport


If researchers from Kyoto University have their way, then this could be the future of personal transport, a vehicle that runs on electricity and is made from bamboo. The car has been named the Bamgoo is a single seater, weighs in at just sixty kilos and has a range of thirty miles on just one charge.Bamboo is very versatile material, which is highly sustainable too. However, there has to be some concern over the safety issues related to driving around in a car like this.

Source : http://keetsa.com/blog/auto/the-future-of-personal-transport/

Friday, July 03, 2009

The accident of world’s Costliest car



Russia: One of the richest cars in the world is Lamborghini, the owner of a car will never sleep even if he found any scratches on the car, but here a driver hit the car in roadside tree. And hence multimillion cars are now going to warehouse. This kind of accidents can be overcome by only car loans and insurance alone, without insurance the owner will never buy this kind of richest car.

Source : http://allamericanautotransport.blogspot.com/2009/04/accident-of-worlds-costliest-car.html


Thursday, June 25, 2009

Inland water transport

Up to 240 million tonnes of bulk goods are transported per year via the German Federal waterways, which amounts to between 60 and 65 billion tonne-kilometres. This equals almost 90 per cent of the goods transport by railway in this country or about 14 million lorry journeys. Moreover, some 1.5 million twenty-foot equivalent units (TEUs) of containers are carried via inland waterways, which corresponds to another 700,000 lorry journeys.

This way, inland shipping makes a most significant contribution to satisfying the industry's demand for transport services, which are delivered on schedule and in a cost-effective and environmentally compatible manner. German inland shipping and inland ports keep around 400,000 people in work. Inland passenger vessels, including river cruise ships, are also growing in economic significance. Many millions of tourists travel in them each year, enjoying the delightful waterside landscapes.

Source : http://www.bmvbs.de/en/Transport/Waterborne-transport-,1898.964413/Waterways-as-transport-routes.htm

Thursday, June 18, 2009

Edinburgh Airport improves transport information

Passengers will be able to get transport information from Edinburgh Airport after the hub installed touch-screen terminals, according to reports.

City space has provided the interactive information pods located in Edinburgh Airport's arrival halls, which will give passengers access to Traveline Scotland journey planning and BBC road and rail travel news.

Lois Proctor, planning and development executive at Edinburgh Airport, said: "Increasing the uptake of public transport is key to our growth plans and is central to the Airport Surface Access Strategy over the next five years."

It is hoped that the new pods will encourage passengers travelling though Edinburgh Airport to explore Scotland's capital city by travelling on public transport.

"Having access to local and national transport information at the point of need makes public transport a much more attractive option," said Guy Wolfenden, transport director, Cityspace.

Passengers using Edinburgh Airport have been reminded not to wear jewelry designed to look like weapons after complaints from local police.

Sources : http://www.fhr-net.co.uk/

Wednesday, June 10, 2009

Transport planning

Transport is a key issue in Medway today. It affects the economic success of the area and the social fabric of the environment. Following public consultation and engagement processes, it became clear that key issues for improvement included:

  • tackling congestion;

  • improvements to public transport services;

  • the journeys to school and work;

  • highway maintenance.


Transport has also been recognised as a key issue when Medway Council consults on other matters, such as rural and youth issues or the provision of services for older people.

The council is required by government to produce a Local Transport Plan built around a five-year integrated transport strategy, devised at local level in partnership with the community.

Wednesday, May 20, 2009

Making it easier to tackle inconsiderate and dangerous parking

English local authorities will be able to tackle inconsiderate and dangerous parking more easily.

From June, councils which carry out parking enforcement will be able to issue Penalty Charge Notices to motorists who park at dropped kerbs or double-park, without the need for these prohibitions to be indicated with specific traffic signs or road markings. This follows consultation which showed strong support for the move.

Authorities in London have successfully used this tool for a number of years to help wheelchair users and those with prams manoeuvre on and off pavements - as well as stopping inconsiderate motorists from blocking residents' driveways. It has also helped deter motorists from blocking the road when parking.

Transport Minister Paul Clark said: "Dropped kerbs are there to help wheelchair users and those with powered mobility vehicles or prams get around easily and safely. They also allow residents to access their garages and driveways.

"The Highway Code is clear that drivers should not stop or park in such places and we believe placing of traffic signs or road markings to indicate these restrictions should not be necessary - as is the case in London. The same rules will apply to double parking - a dangerous activity that causes an unnecessary obstruction of the road, putting all road users at risk.

"While we believe signs and markings are not necessary in these circumstances, we expect local authorities who want to use these powers to do so in a fair and transparent manner and publicise their plans to do so. All other restrictions will continue to require clear signs and markings."

Monday, May 11, 2009

Thousands up for grabs for WA Inventors

Western Australia's brightest thinkers from schools, universities, business and industry are being urged to take part in the State Government's inaugural WA Inventor of the Year Award.

The Inventor of the Year Award program is administered by the Department of Industry and Resources through its Innovation Centre at Technology Park, Bentley.

Premier Alan Carpenter and Science and Innovation Minister Francis Logan launched the awards last Wednesday (29 March) at an event that attracted some of WA’s best inventors.

On display were such companies as Arbortech Industries Limited with their Airboard and Allsaw, Thumtronics with their musical instrument the Thummer, VibraQ Corporation with their Blood Platelet Agitator and even a new bicycle design from UWA Professor Boris Tarasov.

Premier Carpenter said the awards were a $2million election commitment over four years and were aimed at promoting a culture of innovation and entrepreneurship across the State's public, private and education sectors.

The awards are part of the State Government's $50million InnovateWA2 policy, which focuses on the further development of science and innovation in WA.

The four award categories are:
  • industry - open to private sector businesses;
  • research organisations - open to universities, co-operative research centres, centres of excellence and private research bodies;
  • government - open to State and local government statutory authorities, TAFE Colleges and other government entities; and
  • schools - open to primary and secondary students.
There will be close to $300,000 in total prize winnings that will help entrants in the industry, research and government categories take their innovation to the next stage.

Award winners will receive significant financial assistance and in-kind support such as access to professional services and resources appropriate to their stage of development and commercialisation.

The Inventor of the Year Award program is administered by the Department of Industry and Resources through its Innovation Centre at Technology Park, Bentley.

Monday, May 04, 2009

TAWS

What is TAWS?

TAWS (Transport and Works (Scotland) ) is a new order making process which avoids the need for private Bills for transport related developments such as a new railway, a canal, tram system or any other form of guided transport system in Scotland.

TAWS and the Scottish Government

Applications for TAWS orders are made to the Scottish Ministers by (or on behalf of) the applicants of the scheme.

The Scottish Ministers are seeking proposals to come forward under the TAWS Order process that can demonstrate both a very positive benefit to the economy of Scotland and bring about improvements to the country's infrastructure. Transport is one of Scotland's most vital public services, influencing our economy, our communities, our environment, our health and our quality of life and Ministers attach significant importance to inviting new projects to come forward that will enhance the benefits of living and working in Scotland.

The Scottish Ministers also value greatly the public participation measures contained within the TAWS, which invites those who have an interest in proposals to offer their views, either of support or objection, at the earliest possible opportunity. This might come from people whose property or business is affected, or who may be concerned about the effect on the local environment. The purpose of the procedure is to ensure that Scottish Ministers come to an informed view on whether it is in the public interest to make the TAWS order.

The Scottish Ministers consider each application carefully and without bias. They make decisions only after considering all the comments made, sometimes through a public local inquiry. They can make TAWS orders (with or without amendments), or they can reject them.

Friday, April 24, 2009

Some other interesting facts regarding the use of mobile phones in vehicles are as follows:-

  • Using a hand held phone has the greatest impact on performance – so hands free is safer but even using hands free is far more dangerous than driving under the influence of drink.
  • Reaction times are, on average, 30% slower when using a mobile phone compared to being drunk – and 50% slower than normal – with drivers unable to maintain a constant speed or safe distance from the vehicle in front.
  • As outlined above, research shows that drivers are 4 times more likely to crash while using a mobile phone. This enhanced period extends for several minutes after the call is terminated.
  • There is no evidence to suggest that legislation should differentiate between the use of hand held or hands free.
  • Specific bans on using hand-held mobiles while driving are already in place in the following : Australia, Austria, Belgium, Brazil, Czech Rep., Chile, Denmark, Eire, Germany, Greece, Hong Kong, Hungary, Israel, Isle of Man, Italy, Japan, Jersey, Jordan, Malaysia, Norway, Philippines, Poland, Romania, Singapore, Slovak Rep., Slovenia, S.Africa, S.Korea, Spain, Switzerland, Taiwan, Thailand, Turkey and the USA. Portugal and New Delhi also have legislation that prohibits hands-free.

Friday, April 17, 2009

Light Rail


The City of Sydney is committed to working in partnership with the State Government to deliver a sustainable transport strategy that will result in quick, affordable, reliable, clean, safe, accessible and frequent transport for the future.

The City supports extending the current light rail system between Central Station and Circular Quay to relieve CBD transport congestion.

The City has committed funds to assist with public infrastructure works required for the extension of light rail, and will continue to call on State and Federal Governments to support the proposal.

The City needs a world-class public transport system that is well planned and resourced, efficient and integrated.

An efficient and integrated public transport system is also an essential cornerstone of sustainable development.

Growth, especially in the airport to CBD corridor, is creating increasing demands on our transport system. As a result, Sydney faces significant traffic congestion and a lack of capacity in public transport.

Friday, April 10, 2009

Cycling in Edinburgh

Cycling is a cheap, quick and healthy way to get around the city. The City of Edinburgh Council is working towards ensuring that cycling is an attractive, safe and secure option for all short and medium distance journeys.

“It’s faster and cheaper for me to take the bike, and I get regular exercise. Cycling also lets you take in your surroundings more and stop off at a shop or the bank on the way without having to worry about parking.” - Julia, Edinburgh

Saturday, April 04, 2009

Features of Tata Nano Car




TATA Nano features

  • 624cc petrol engine
  • 33BHP
  • 20km per litre mileage, upto 26km per litre on highway
  • 30 liter petrol tank
  • 4 door, 5-seater
  • Rear engine, front boot
  • 4 speed manual gear box
  • On road price expected to be around Rs. 1 lakh 25 thousand
  • front disc brakes and drums in the rear
  • Euro 4 compliant
  • Top speed 90kmph
  • 21% more space than Maruti 800!

Standard model would cost roughly Rs. 1,25,000 onroad



Wednesday, April 01, 2009

Old Bikes

Early 19th century

Mid 20st century
21st century