nets in cold water

[dogsbestfriend]

does anyone know if a cast net sinks slower in cold water as opposed to warmer water?

[mwardncsu]

Professor time From Wikipedia (en.wikipedia.org/wiki/Properties_of_water#Density_of_water_and_ice) -

"The density of water is approximately one gram per cubic centimeter. It is dependent on its temperature, but the relation is not linear and is unimodal rather than monotonic (see table at left). When cooled from room temperature liquid water becomes increasingly dense, as with other substances, but at approximately 4 °C (39 °F), pure water reaches its maximum density. As it is cooled further, it expands to become less dense. This unusual negative thermal expansion is attributed to strong, orientation-dependent, intermolecular interactions and is also observed in molten silica."

So, technically, as the water cools towards 39 °F the density of the water is increasing, and thus would provide more resistance against an object moving through it, slowing said object. However, it is only a very small amount of relative change in the density (997.0479 kg/m^3 for 77 degree water vs 999.9720 kg/m^3 for 39 degree water and 958.4 kg/m^3 for boiling water for comparison) and not to the point that it would noticeably affect your cast net.

Now, I've found that when it is cold outside, the leaves are often falling and all over the lake - and when you throw on a big area of leaves it will certainly slow your net. Also, when the water reaches a really, really cold point (like when it turns to ice) that the net won't move through it at all ;D

Is it Friday yet?

[Brian]

Nov 27, 2012 13:59:37 GMT -5 mwardncsu said:

Professor time
*snip*

For those of you who don't read so good (not namin' names), the answer is "no difference".

;D

[dogsbestfriend]

i thank you for the reply. i guess i was just missing the bait ...or maybe i was throwing on a small school of perch

[mwardncsu]

Nov 27, 2012 18:10:47 GMT -5 Brian said:

Nov 27, 2012 13:59:37 GMT -5 mwardncsu said:

Professor time
*snip*

For those of you who don't read so good (not namin' names), the answer is "no difference".

;D

;D

[Brian]

Nov 27, 2012 18:29:30 GMT -5 dogsbestfriend said:

i thank you for the reply. i guess i was just missing the bait ...or maybe i was throwing on a small school of perch

I've thrown on crappie more than once... You'll get lucky occasionally and get some of them that zigged when they should have zagged.