Standup Zone Forum

Stand Up Paddle => Regional => NorthEast => Topic started by: supthecreek on March 29, 2015, 12:24:58 PM

Title: it's gone.... holy crap!
Post by: supthecreek on March 29, 2015, 12:24:58 PM
4 days ago it was a sea of 6' thick ice

same spots a few days apart.... ok... I can embrace a beach day ;D
Title: Re: it's gone.... holy crap!
Post by: XLR8 on March 29, 2015, 12:42:53 PM
When it finally happens it happens fast.  I'm hoping my area cleans up after a big storm rolls through today.
Title: Re: it's gone.... holy crap!
Post by: lunchbox on March 29, 2015, 01:12:27 PM
I really want to visit the East coast...think I'll go during summer  8)
Title: Re: it's gone.... holy crap!
Post by: PonoBill on March 29, 2015, 01:17:00 PM
Always a big surprise. Ice can hold a lot of latent heat, the phase change requires a lot of energy, but a large mass of ice can adsorb that heat somewhat uniformly and be poised for the last little bit of heat to convert it to water. Poof, gone. Like 32,32,32,32,32,32...  ...32, 33--bam. Or if it's so cold that you're all the way to celsius it's 0,0,0,0,0,0,0..  ..0,1--detonazione

In some conditions water can do the same thing in turning to ice. It generally requires that there be no other energy inputs to cause localized crystallization which spreads as a pattern to the rest of the water. Bring the water to a state where the latent heat has all been extracted, then add any kind of energy as a wavefront--a puff of wind, and bam, it's all ice. Almost never seen outside a lab, but it has happened in the wild--like farm ponds in a still valley freezing instantly--at least according to witnesses.
Title: Re: it's gone.... holy crap!
Post by: salinity on March 30, 2015, 12:23:47 PM
Ice finally disappeared (and quickly) from the beach closest to me (Narragansett Bay - no Sup-surfing there) - boy was I happy to see that this weekend. No more needing to try to time the tidal rivers to get out for a paddle. Bonus: I saw a curious seal on my first bay paddle yesterday.
Title: Re: it's gone.... holy crap!
Post by: blackeye on March 30, 2015, 07:39:27 PM
To this day I remember a Chem 110 exam question - how much energy does it take to transform ice at 0 Celsius (eh?) to water at 0 Celsius? Passed the exam but not that question. Pono, I still don't know the answer.

I used PV=nRT, P1V1=P2V2, E=mc2, 4Pi r cubed/3, what I knew about red shift, all to no avail. I did learn how to make excellent beer so that fancy education wasn't a total loss.
Title: Re: it's gone.... holy crap!
Post by: spookini on March 30, 2015, 08:38:18 PM
You're just encouraging him..  ???
Title: Re: it's gone.... holy crap!
Post by: Beasho on March 30, 2015, 09:37:46 PM
Heat of fusion of water = 80 calories per gram  (Going from Solid to Liquid @ 0 C)

Heat of Vaporization (boiling) = 540 calories per gram.

Put this into perspective to heat 1 gram 1 degree celsius takes 1 calorie in liquid form.  To go from 0 to 100 takes just 100 calories. To boil or evaporate takes 540 calories with no effective temperature increase (e.g. vapor at 100 degrees C).  This is why sweating is such an effective coolant and why planet earth has an incredibly effective governor to keep temperatures between 0 and 100 C.
Title: Re: it's gone.... holy crap!
Post by: supthecreek on March 31, 2015, 04:48:23 AM
All your science is not applied equally... so I say bunk. Murphy is in charge.

I want to paddle in ice.... 6 feet melts in 3 days

I want to play golf......... 6 inches won't melt till my winter membership is over..... TODAY >:(

the proof is in the pictures.....
science - 0
Murphy - 1
:'(
Title: Re: it's gone.... holy crap!
Post by: eastbound on May 26, 2015, 08:44:20 AM
spent the wknd in hot florida, bodyboarding in onshore slop---all fun but the heat and brutal sun made me wonder if it aint so bad up here
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