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D.R. Hartree. The Bush Differential Analyser and its Implications. „Nature”. 146 (3697), s. 319, September 1940. DOI: 10.1038/146319a0. Opisy Lorda Kelvina: Thomson, William. Mechanical Integration of Linear Differential Equations of the Second Order with Variable Coefficients. „Proceedings of the Royal Society”. 24 (164–170), s. 269–71, 1876. DOI: 10.1098/rspl.1875.0035. Thomson, William. Mechanical Integration of the general Linear Differential Equation of any Order with Variable Coefficients. „Proceedings of the Royal Society”. 24 (164–170), s. 271–5, 1876. DOI: 10.1098/rspl.1875.0036.
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Irwin, William (2009-07). Op. cit. "It is rumoured that a differential analyser was used in the development of the "bouncing bomb" by Barnes Wallis for the "Dam Busters" attack on the Ruhr valley hydroelectric dams in WW2. This was first mentioned in MOTAT [New Zealand] literature in 1973. However after extensive enquiries and literature searches over the last few years, no evidence can be found that the [differential analyser held by MOTAT. nzmuseums.co.nz. [zarchiwizowane z tego adresu (2018-02-26)]., nor any other differential analyser, was used for this purpose. Considering the secrecy surrounding war time activities at the time it could still be possible, but most people from that era are now deceased. Two remaining personalities still alive from that era were consulted, namely Arthur Porter and Maurice Wilkes, but neither could substantiate the rumour."
Irwin, William (2009-07). Op. cit. "It is rumoured that a differential analyser was used in the development of the "bouncing bomb" by Barnes Wallis for the "Dam Busters" attack on the Ruhr valley hydroelectric dams in WW2. This was first mentioned in MOTAT [New Zealand] literature in 1973. However after extensive enquiries and literature searches over the last few years, no evidence can be found that the [differential analyser held by MOTAT. nzmuseums.co.nz. [zarchiwizowane z tego adresu (2018-02-26)]., nor any other differential analyser, was used for this purpose. Considering the secrecy surrounding war time activities at the time it could still be possible, but most people from that era are now deceased. Two remaining personalities still alive from that era were consulted, namely Arthur Porter and Maurice Wilkes, but neither could substantiate the rumour."
