transmitting and receiving equipment development
1Libraries and Museums — ▪ 2007 Introduction Libraries and museums grappled with ways to attract more patrons during the year, introducing innovative software (Library 2.0), technological wizardry (iPods as museum aides), and even “bib dating.” Efforts continued to… …
2Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer. The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …
3Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …
4Misconceptions about HIV and AIDS — The spread of HIV and AIDS has affected millions of people worldwide; AIDS is considered a pandemic.[1] In 2009, the World Health Organization (WHO) estimated that there are 33.4 million people worldwide living with HIV/AIDS, with… …
5Science and technology in the People's Republic of China — has been growing rapidly. As China develops and becomes more connected to the global economy, the government has placed a stronger emphasis on science and technology as an integral part of the socio economic development of the country. This has… …
6Health and Disease — ▪ 2009 Introduction Food and Drug Safety. In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… …
7HIV and AIDS misconceptions — The spread of HIV and AIDS has affected millions of people worldwide; According to the 2006 AIDS Epidemic Update , published by the UNAIDS/World Health Organization, there were an estimated 39.5 million people around the world living with HIV,… …
8Alexander Graham Bell honors and tributes — Alexander Graham Bell c.1918–1919 Alexander Graham Bell honours and tributes include honours bestowed upon him and awards named for him …
9North Atlantic Radio System — The North Atlantic Radio System (NARS) was a chain of five tropospheric scatter communication sites that stretched from Iceland to RAF Fylingdales, forming an extension of the Distant Early Warning Line (DEW Line). Contents 1 Development 2 NARS… …
10History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
