How can I best determine whether my liquid nitrogen dewar tank (for storing frozen cells) is failing
The rate of loss of nitrogen seems high, but of course the weather is warmer.
I do not see leakage, ice, or anything.
The upper part of the tank feels very cold (e.g., if I place my hand on the part of the tank that slopes up towards the neck).
I switched to a different cover (I had a second cover that hasn't been used in years). But so far I am not sure this is making a difference.
I am realizing that the tank has been being overfilled.
I didn't fully understand your article, but I am worried about O-rings or something along those lines.
by Howard S. 6 years ago
Should libraries determine whether the book "Shades of Grey" will or will not be on their shelves?It has been reported that some libraries are removing "Shades of Grey" from their shelves. Is it appropriate for libraries to determine whether a given book will or will not be...
by Renz Kristofer Cheng 5 years ago
How do you conveniently determine whether your hubs are being copied/stolen else where?I'm just wondering if there is a convenient way to do it, because normally I use the Google search by copying a paragraph in my hub. That way, I'll know if there others copied my work. However, this method is...
by G. Diane Nelson Trotter 4 months ago
There are quite a few stories in the news about police being called on others for interesting reasons.1. Yale student called police on a student who was sleeping in the common area.2. Same Yale student called police on another student several months ago because another student was...
by C Levrow 7 years ago
Do the layout and length of a hub help determine whether or not you read it?I'm guilty of not reading hubs based on their layout and length. If they are too long I tend to gloss over them (unless they are really well written.) Does anyone else find themselves doing this or something similar?
by surf traveler 8 years ago
Does your hub score determine whether your links are follow or "no follow". I just read a post...suggesting that if your hubscore is low your links in hubs will be no follow.
by Queirdkus Ω Ibidem 6 years ago
How does one determine whether one is successful?
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