Sentences with phrase «since liquids evaporate»

Since electron microscopes can only operate in a high vacuum, as molecules in the air disrupt the electron beam, and since liquids evaporate in high vacuum, aqueous samples must either be freeze - dried or hermetically sealed in special cells.

Not exact matches

The event was not unexpected: the mission began with over 2300 litres of liquid helium, which was slowly evaporating since the final top - up the day before Herschel's launch on 14 May 2009.
Since the liquid base is saturated, liquid and lower in altitude than z, it would have a higher pressure, but since that layer is liquid, it is not going to evaporate to replace the condensaSince the liquid base is saturated, liquid and lower in altitude than z, it would have a higher pressure, but since that layer is liquid, it is not going to evaporate to replace the condensasince that layer is liquid, it is not going to evaporate to replace the condensation.
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