Promovierte Chemikerin, PostDok an der University of Calgary… Und sowas lassen die ins Chemielabor… I'm shopping for an ultrasonic bath on VWR. There are two electrical options: 117 V, 60 Hz or 220 V, 50/60 Hz. Can someone educate me on what this means and which one I should pick? #chemtwitter #stemtwitter — Alisa Paterson (@AlisaRPaterson) July 8, 2020 Hier nochmal als Prachtshot: […] https://ift.tt/2DqNpmX