The next Open Call is Tuesday, October 12, at 2pm Central Time. Click here for call-in details!


Comments

Author Comment Last activity Moderation
profpearce "And the link https://doi.org/10.3390/instruments3020030 " | Read more » over 2 years ago
profpearce " Here is a fully 3D printed hand powered one -- " | Read more » over 2 years ago