Ramani
Member • Nov 25, 2011
Icy Finger if Death - A Chilling Movie from BBC
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Member • Dec 2, 2011
I did not quite understand what was happening :-s. can someone who watched the video already elucidate?Are you sure? This action cannot be undone. -
Member • Dec 2, 2011
Oops.. The video is not up anymore. It's removed.
Based on what I watched and understood, there is a water body. A stream of water flows into it, just like a river flows into the sea. That stream has a very high salt content.
Because of that high salt content, the freezing point of water around the point where the stream flows into the sea is lowered (It's a colligative property).
So, water freezes around the path where the stream flows into the sea, in a column of ice.
Liquid water flows around the column, but the path where the salty water flows solidifies into an ice column and proceeds deep.
Once it reaches the ocean floor, it starts engulfing all the fish and other organisms around in the icy sheath, freezing and killing them instantly.
Pretty scary and chilling to watch, it was!! 😲Are you sure? This action cannot be undone. -
Member • Dec 2, 2011
The video is available #-Link-Snipped-#Are you sure? This action cannot be undone. -
Administrator • Dec 2, 2011
😕 *trembles* Scary description it is.silverscorpionOnce it reaches the ocean floor, it starts engulfing all the fish and other organisms around in the icy sheath, freezing and killing them instantly.
Pretty scary and chilling to watch, it was!! 😲
high salt content -> Does it refer to the DEAD SEA?Are you sure? This action cannot be undone. -
Member • Dec 2, 2011
Well, not necessarily.
Colligative properties are properties of fluids that depend on the number of molecules of a substance present in a fluid, rather than the molecules themselves.
So, when a solute (salt) is added to a solvent (water) to make a solution (brine solution), the freezing point of the solution becomes less than the freezing point of the solvent.
By how much the freezing point decreases depends on the number of molecules of the solute in the solution. So, since it instantly freezes the water it comes into contact with, the salt content must be pretty high indeed.
But then, the article mentions that the video was shot at Little Razorback Island, near Antarctica's Ross Archipelago. So, it's not dead sea. 😀Are you sure? This action cannot be undone.