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PSA: Don't become a Myrderer


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#21 Offline drtrmiller - Posted March 10 2017 - 9:03 PM

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Be careful when traveling with test tubes that have a water supply behind a cotton plug: changes in temperature or altitude can create internal pressure differences—essentially a vacuum effect—that may cause the water to be sucked out, consequently drowning the ants, as you describe.

When traveling with such tubes, it is generally best to have the cotton end oriented upwards, so the gas bubble can be more responsive to the pressure changes.

Does this make sense?
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#22 Offline Works4TheGood - Posted March 11 2017 - 6:32 AM

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Be careful when traveling with test tubes that have a water supply behind a cotton plug: changes in temperature or altitude can create internal pressure differences—essentially a vacuum effect—that may cause the water to be sucked out, consequently drowning the ants, as you describe.

When traveling with such tubes, it is generally best to have the cotton end oriented upwards, so the gas bubble can be more responsive to the pressure changes.

Does this make sense?

 

I strongly agree with this suggestion; I learned this lesson independently the hard way, and it nearly wiped out several of my colonies  :fool:


~Dan




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