<div dir="ltr">Does anyone know how to reach Thomas Lindgren, who wrote the 1990 book "Glory and Failure" about Babbage and others who built difference engines?<div><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><table style="border-collapse:collapse;width:525px;border-spacing:0px;background-color:transparent;color:rgb(35,38,54);font-family:Poppins,sans-serif;font-size:16px"><tbody style="border:0px;padding:0px;font-size:0.9em"><tr><td style="padding:5px;font-size:0.9em;font-stretch:normal;line-height:1.5;color:rgb(255,0,0);border-width:0px 3px 0px 0px;border-bottom-style:initial;border-bottom-color:initial;border-top-style:initial;border-right-style:solid;border-left-style:initial;border-top-color:initial;border-right-color:rgb(204,0,0);border-left-color:initial;width:180px;vertical-align:middle"><a href="https://www.njit.edu/" style="background-color:transparent;color:rgb(51,122,183)" target="_blank"><img src="https://assets.njit.edu/uicomponents/NJIT-email-logo.png" alt="NJIT logo" style="border:0px;display:block;vertical-align:middle;width:150px;height:auto;max-width:150px"></a></td><td style="padding:5px 5px 5px 10px;font-size:12px;font-stretch:normal;line-height:16px;border:0px;font-family:Arial,Helvetica,sans-serif"><strong style="color:rgb(111,111,111);font-size:13px!important">Evan A Koblentz</strong><br><font color="#6f6f6f">Staff Writer</font><br><font color="#6f6f6f">Office of Strategic Communications</font><br><a href="mailto:evank@njit.edu" style="color:rgb(204,0,0);background-color:transparent" target="_blank">evank@njit.edu</a><font color="#6f6f6f"><br></font><span style="white-space:nowrap"><a href="tel:9735963065" style="color:rgb(204,0,0);background-color:transparent" target="_blank">(973) 596-3065</a><br><font color="#cc0000"><a href="https://web.njit.edu/~evank/" target="_blank">https://web.njit.edu/~evank/<br></a>@TechnicallyEvan</font><br><br></span></td></tr></tbody></table></div></div></div></div>