posted on Feb, 7 2012 @ 07:23 AM
Some of us here ask why the lake stays on temprature, that I also thought strange after searching for some answers I stumbled on this article....
What specifically do infrared images reveal?
Infrared is a type of light that we cannot see with our eyes. Our eyes can only see what we call visible light. Infrared light brings us special
information that we do not get from visible light.
It shows us how much heat something has and gives us information about an object's temperature. Everything has some heat and puts out infrared
Even things that we think of as being very cold, like an ice cube, put out some heat.
Cold objects just put out less heat than warm objects.
The warmer something is the more heat it puts out and the colder something is the less heat it puts out.
Hot objects glow more brightly in the infrared because they put out more heat and more infrared light.
Cold objects put out less heat or infrared light and appear less bright in the infrared.
Anything which has a temperature puts out infrared light. In the infrared images shown in these lesson plans, different colors are used to represent
You can find out which temperature a color represents by using the color-temperature scale show to the right of most of the images. The temperatures
are in degrees Fahrenheit.
To the left is an infrared image of a metal cup holding a very hot drink. Notice the rings of color showing heat traveling from the liquid through the
You can see this in the metal spoon as well.
To the right is an infrared image of a melting ice cube. Notice the rings of color showing how the melt water warms as it travels away from the cube.
Although the ice cube is cold, it still puts out heat, as you can see by matching the color of the ice cube with its temperature.
This could mean that melting ice underneath can warm this lake up....?
As for light in complete darkness Arachnocampa luminosa may sound like the name of an intricate spell, it’s actually an insect that produces an
enchanting effect completely on its own.
Better known as “glowworms”, these gnat larvae produce a distinctive blue-green light that illuminates New Zealand’s subterranean Waitomo
glowworm caves. The tiny, star-like dots attract unsuspecting flies, mosquitoes and snails to their sticky, silk string nests, which stretch up to
40cm from the cave ceiling. Prey is fooled into thinking they are still under the night sky, a trick that is not hard to believe when looking up at
the millions of luminescent creatures shimmering against a pitch black background.
So I can imagine if the water temperature beneath the ice is warm, and there's oxygen , creatures like these come to life....
The question also rises what happens if there's large amounts of metal within this lake and come in contact with the ice what happens then?
OMG, did I just find out why the strange sounds in the world are happening....?
When dry ice touches metal why is there a screeching sound?
First, When Warmed, dry ice skips the liquid phase and goes directly to being a gas.
The reason this phenomena happens with Because metal is metal is a good conductor of heat and so the temperature difference Between the dry ice and
the surface remains as large.
Another way to look at it is bootable That the metal is to supply a lot of heat to Quickly Evaporate the dry ice.
When the dry ice sublimates there is a large "source" or gas being created Between the two surfaces and it needs to escape. When it is escaping
however there is an instability Which results in a cyclic motion.
When at first the gas builds up, a space is created. When however the gas speeds up and starts to go throw the space, its pressure drops. This
pressure drop happens to all gasses and is called the Bernoulli principle.
The dropping of the gas pressure results in the two surfaces coming together again. However That results in another build or gas All which pushes the
two surfaces apart again. This cycle repeats over and over again.
The cyclic phenomena is in fact very common and is overused in the past or all wind instruments.
In fact if you press your lips together very Tightly and build up the air pressure in your mouth, When the air escapes, a Squeaking sound will be
created for the Same reason.
edit on 21/12/2010 by 0bserver1 because: (no reason given)