QED vacuum has interesting and complex properties. In QED vacuum, the electric and magnetic fields have zero average values, but their variances are not zero. As a result, QED vacuum contains vacuum fluctuations (virtual particles that hop into and out of existence), and a finite energy called vacuum energy. Vacuum fluctuations are an essential and ubiquitous part of quantum field theory. Some experimentally verified effects of vacuum fluctuations include spontaneous emission and the Lamb shift. Coulomb's law and the electric potential in vacuum near an electric charge are modified.
What is a verified effect of vacuum fluctuation?
spontaneous emission

St. John's economy is connected to both its role as the provincial capital of Newfoundland and Labrador and to the ocean. The civil service which is supported by the federal, provincial and municipal governments has been the key to the expansion of the city's labour force and to the stability of its economy, which supports a sizable retail, service and business sector. The provincial government is the largest employer in the city, followed by Memorial University. With the collapse of the fishing industry in Newfoundland and Labrador in the 1990s, the role of the ocean is now tied to what lies beneath it oil and gas as opposed to what swims in or travels across it. The city is the centre of the oil and gas industry in Eastern Canada and is one of 19 World Energy Cities. ExxonMobil Canada is headquartered in St. John's and companies such as Chevron, Husky Energy, Suncor Energy and Statoil have major regional operations in the city. Three major offshore oil developments, Hibernia, Terra Nova and White Rose, are in production off the coast of the city and a fourth development, Hebron, is expected to be producing oil by 2017.
What is supported by the federal, provincial and municipal governments?
civil service

Arsenal Ladies are the women's football club affiliated to Arsenal. Founded in 1987, they turned semi-professional in 2002 and are managed by Clare Wheatley. Arsenal Ladies are the most successful team in English women's football. In the 200809 season, they won all three major English trophies the FA Women's Premier League, FA Women's Cup and FA Women's Premier League Cup, and, as of 2009, were the only English side to have won the UEFA Women's Cup, having done so in the 200607 season as part of a unique quadruple. The men's and women's clubs are formally separate entities but have quite close ties; Arsenal Ladies are entitled to play once a season at the Emirates Stadium, though they usually play their home matches at Boreham Wood.
By 2009 what competition has Arsenal Ladies been the only ladies team to have won?
UEFA Women's Cup