Beijing

Beijing is the capital of the People's Republic of China and one of the most populous cities in the world.

Its total population in 2013 was 21,150,000. The city proper is the 2nd most populous in the world. The metropolis, located in northern China, is governed as a direct-controlled municipality under the national government with 16 urban, suburban, and rural districts. Beijing Municipality is surrounded by Hebei Province with the exception of neighboring Tianjin Municipality to the southeast; together the three divisions form the Jingjinji metropolitan region and the national capital region of China.

Beijing is the second largest Chinese city by urban population after Shanghai and is the nation's political, cultural and educational center. It is home to the headquarters of most of China's largest state-owned companies, and is a major hub for the national highway, expressway, railway, and high-speed rail networks. The Beijing Capital International Airport is the second busiest in the world by passenger traffic.

Concert

A concert is a live music performance in front of an audience.

The performance may be by a single musician, sometimes then called a recital, or by a musical ensemble, such as an orchestra, choir, or band. Concerts are held in a wide variety and size of settings, from private houses and small nightclubs, dedicated concert halls, entertainment centres and parks to large multipurpose buildings, and even sports stadiums. Indoor concerts held in the largest venues are sometimes called arena concerts or amphitheatre concerts. Informal names for a concert include show and gig.

Regardless of venue, musicians usually perform on a stage. Concerts often require live event support with professional audio equipment. Before recorded music, concerts provided the main opportunity to hear musicians play.

Types

The nature of a concert varies by musical genre, individual performers, and the venue. Concerts by a small jazz combo or small bluegrass band may have the same order of program, mood, and volume—but vary in music and dress. In a similar way, a particular musician, band, or genre of music might attract concert attendees with similar dress, hairstyle, and behavior. For example, concert goers in the 1960s often had long hair (sometimes in dread lock form), sandals and inexpensive clothing made of natural fibers. Regular attendees to a concert venue might also have a recognizable style that comprises that venue's scene.

No symbol

The no symbol (also known as a prohibition sign, no sign, circle-backslash symbol, nay, interdictory circle, or universal no) is a circle with a diagonal line through it (running from top left to bottom right), surrounding a pictogram used to indicate something is not permitted. The no symbol is generally colored red, but is sometimes another color, typically black.

The Unicode code point for the prohibition sign (also called the no symbol) is U+20E0;, Combining Enclosing Circle Backslash (   ⃠   ). It is a combining character, which means that it appears on top of the character before it, so putting d⃠ will show   d⃠.   (Note: This will appear only if the character exists in an available font.) It also appears in the Webdings and Wingdings 2 fonts.

There is also a prohibition sign emoji located at U+1F6AB NO ENTRY SIGN (🚫), which does not combine with anything.

According to the ISO standard (and also under a UK Statutory Instrument), the red area must take up at least 35% of the total area of the sign within the outer circumference of the "prohibition sign". So 35% of everything within the outer edge of the "no symbol" must be the symbol itself. Additionally, for printed signs under the UK rules, the width of a "no symbol" is set at 80% the height of the area it is printed to.