The Encyclopaedia Britannica has lashed out at a recent study by Nature which claimed that Wikipedia "comes close" to Britannica"s accuracy in covering scientific topics. Nature compared 50 entries in the online versions of both encyclopaedias and counted 123 inaccuracies in Britannica and 162 in Wikipedia. The magazine used a panel of researchers who received texts from the publications without knowing the source and asked them to hunt for errors and omissions.