Toothpaste fills cavities without drilling

Thursday, February 24, 2005 A paste containing synthetic tooth enamel can seal small cavities without drilling. Kazue Yamagishi and colleagues at the FAP Dental Institute in Tokyo say that the paste can repair small cavities in 15 minutes. Currently, fillers don’t stick to such small cavities so dentists must drill bigger holes. Hydroxyapatite crystals, of […]

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Heatwave hits the UK and Ireland

Wednesday, July 19, 2006 Today has seen Britain’s hottest recorded July day with temperatures hitting 36.5ºC (97.7ºF) in Wisley in Surrey. Warm air from the Gulf Stream is raising the temperature, and the hot weather is causing the asphalt on some public roads to melt, requiring gritting. Some schools stayed closed on Wednesday, while others […]

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New method of displaying time patented

Saturday, October 14, 2006 An American inventor has patented a pair of new time formats with a footprint less than 50% of that of conventional four-digit time. The more unusual of the two new formats, called “TWELV”, dispenses with numerals altogether. In place of clock hands or digits, the new clock uses color to convey […]

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