Page 21 of 35. Previous 1 .... 20 21 22 .... 35 Next Kryptographie Chiffrierscheibe Read more Öffentliches Kinderprogramm © Arithmeum Read more 8th Bonner science night © Arithmeum Read more Öffentliches Kinderprogramm Rafael Perez, Espacios geométricos, 1985, 104 x 104, Acryl auf Leinwand auf Holz Read more Kinderprogramm John Napier "Multiplizieren mit Napier" (ab 9 Jahren) Read more Calculating in olden times © Arithmeum Calculating with calculating machines Read more Dies Academicus © Arithmeum Free admisson and public guided tours Read more Calculating in olden times © Arithmeum Multiplying with Napier Read more Reckoning in the past © Arithmeum Fingers, stones and knots Read more Art © Arithmeum A guided tour for children Read more Reckoning today © Arithmeum A guided tour for children Read more Reckoning today © Arithmeum A guided tour for children Read more Tag der Deutschen Einheit und Nordrhein-Westfalen-Tag © Arithmeum Free admisson and public guided tours Read more Tag der Deutschen Einheit und Nordrhein-Westfalen-Tag © Arithmeum Free admisson and public guided tours Read more Reckoning in the past © Arithmeum Reckoning with gadgets Read more Tag der Deutschen Einheit und Nordrhein-Westfalen-Tag © Arithmeum Free admisson and public guided tours Read more Art Dynamic triangles Read more Reckoning in the past © Arithmeum Reckoning with machines Read more Reckoning in the past © Arithmeum Abacus and Reckoning table Read more Art © Arithmeum Auguste Herbin - Alphabet Plastique Read more Page 21 of 35. Previous 1 .... 20 21 22 .... 35 Next