Maritime automatic identification system, upgrading WiFi on laptop (with USB adaptor), USB auto print sharing switch, Profiles in IT (Umang Gupta, first Indian to take tech company public), lessons learned in Silicon valley (according to Umang Gupta), Large Hadron Collider restarts after break, physics of the singing saw (can used used to create stable occilators), and Linux developers patch security holes faster. This show originally aired on Saturday, April 23, 2022, at 9:00 AM EST on WFED (1500 AM).