Are you having trouble focussing at a particular magnification on your microscope?
Do you have a problem getting a particular magnification clear when using your microscope when other magnifications appear to be…
Month: March 2011
Whats the best way to retireve a cryovial from the bottom of a liquid nitrogen storage dewar?
Have you lost a cryovial into the depths of your liquid nitrogen dewar and need way of retrieving it without having…