Chewing gum

Chewing gum is a soft, cohesive substance designed for chewing but not swallowing. Humans have used chewing gum in some form for at least 100,000 years. Modern chewing gum is made from butadiene-based synthetic rubber. Most chewing gums are considered polymers.

History

Chewing gum in many forms has existed since the Neolithic period. 5,000-year-old chewing gum made from birch bark tar, with tooth imprints, has been found in Kierikki, Yli-Ii, Finland. The tar from which the gums were made is believed to have antiseptic properties and other medicinal benefits. The ancient Aztecs used chicle, a natural tree gum, as a base for making a gum-like substance and to stick objects together in everyday use. Forms of chewing gums were also chewed in Ancient Greece. The Ancient Greeks chewed mastic gum, made from the resin of the mastic tree. Many other cultures have chewed gum-like substances made from plants, grasses, and resins.

The American Indians chewed resin made from the sap of spruce trees. The New England settlers picked up this practice, and in 1848, John B. Curtis developed and sold the first commercial chewing gum called The State of Maine Pure Spruce Gum. Around 1850 a gum made from paraffin wax was developed and soon exceeded the spruce gum in popularity. William Semple filed an early patent on chewing gum, patent number 98,304, on December 28, 1869.

Chewing gum (disambiguation)

Chewing gum is a type of confection traditionally made of chicle or synthetic rubber.

Chewing gum may also refer to:

Chewing Gum (TV series)

Chewing Gum is a British television sitcom series that debuted on E4 on 13 October 2015. It was written by and stars Michaela Coel, Robert Lonsdale, Susan Wokoma, Danielle Walters and Tanya Franks. The show involves Tracey Gordon, a restricted, religious 22 year old shop assistant, who wants to learn more about the world. Series one premiered on 6 October 2015 until 10 November 2015. On the 3 December E4 ordered a second series for 2016.

Cast

References

External links

SL2

SL2 may refer to:

Special linear Lie algebra

SL2 (group)

SL2 are an English breakbeat hardcore group active in the early 1990s from London, England. They also recorded, remixed or produced under the names Slipmatt & Lime and T.H.C.

Background

"Starting out as a group of three, SL2 was originally a coming together of DJ's Matt "Slipmatt" Nelson, John "Lime" Fernandez and rap vocalist Jason "Jay-J" James. The SL2 name came from the founders initials - Slipmatt (S) and Lime (L), and as they were a duo - hence "SL2".

Underground

As youngsters in 80s Britain, they were very much into the hip hop scene before having their heads turned by the growing rave scene.

Their big break came in 1989 through Slipmatt's older brother, who was running the now legendary party-promoting organisation Raindance, they became the enterprise's resident DJs, playing parties all over the United Kingdom.

A year into touring with Raindance, SL2 released their debut single, "Do That Dance," through B-Ware Records which sold well to fans of the rave scene. Allegedly, the practices of the record label prevented the band from ever seeing any money. Subsequently, SL2 set up their own Awesome Records label, through which they first released another single, "DJ's Take Control". The record sold 3500 copies, attracting the attention of new dance label XL Recordings.

Silver Line (MBTA)

The Silver Line is the bus rapid transit (BRT) system of the Massachusetts Bay Transportation Authority (MBTA). It currently operates four routes in two sections that were built in separate phases.

The first section has two routes from Dudley Square in Roxbury, mostly via Washington Street, to Boston's Downtown Crossing (SL5) and South Station (SL4), using articulated buses operating in reserved lanes. The second section runs from South Station Under to South Boston (SL2) and to Logan Airport in East Boston (SL1). It runs dual-mode buses, partly in a dedicated bus tunnel and partly on shared roadway, including surface streets, the Ted Williams Tunnel, and airport roads. Riders can transfer between the sections and to other lines at South Station; transfers there between SL1, SL2, and the Red Line—but not SL4—are within fare control. At South Station, however, a transfer from SL1, SL2, and the Red Line to SL4 (and vice versa) can be made by walking alongside streets.

Speed and schedule performance have disappointed some transit advocates and the Silver Line routes fall far short of the minimum BRT Standard promulgated by the Institute for Transportation and Development Policy (ITDP). Some sections have an exclusive right-of-way, but other sections are bogged down by street running in congested mixed traffic. As of September 2014, a contract has been awarded for the first phase of an extension to Chelsea, Massachusetts, largely in reserved right-of-way; other extensions of the Silver Line are being studied as well.