Exempel på water ice

• The white clouds (usually sparse) were also widely regarded as being composed of tiny crystals of water ice, rather like cirrus in our atmosphere.

• Thus, over millions of years, substantial deposits of water ice might accumulate, presumably mixed in with the uppermost few metres of regolith.

• We did not have this kind of impurity peak if we extracted ion beams from the pure anode without water ice inclusion.

• The adsorptive bond of water molecules is about twice as strong on mineral surfaces compared with on water ice.

• If these regions of high hydrogen concentration represent water ice content, then they would be ideal places to search for organic preservation.

• This study focused on a water ice source.

• By contrast, the residual northern cap is water ice (plus some dust).

• In the lower layers above the microscopic surfaces of sorbent minerals, adsorption water has a much stronger bond to these surfaces than water ice.

• This adsorption enthalpy is a measure for the energetic bond of water molecules, which are adsorbed on the surface of water ice.

• Therefore, evaporation of adsorption water in porous soil happens on time scales, which exceed those of sublimation of water ice by orders of magnitude.

• In order to model these processes we used a water ice sample covered by several centimetres of sand containing organic matter.

• This potentially very important result is still awaiting confirmation, but if water ice is present it is most likely derived from the impacts of comets with the lunar surface.

• A small part of them consist of very large bodies, quite comparable to planets of terrestrial type, but including a very significant share of water ice.

• In order to model it we used a water ice sample covered by several centimetres of sand with a weight fraction of organic matter (glucose) y10-5-10-4.

• I should have thought that the temperance drinks referred to could be made sufficiently attractive without the addition of water ice.