super-christians assume that if you have no religion you have no morals. marcotte is saying that the consequence of this idea is that if the religion gets disproved, then the morals are lost. she knows that this is obviously not true.
Think about your refrigerator, it is a cold box that stays cold, in a hot room. According to the laws of thermodynamics, that is not supposed to be. Heat always moves from hot to cold. You have to do work to get heat to travel from cold to hot. That is what happens in a refrigerator. Heat is pumped from inside the freezer out to the room and that is how the freezer stays cold. It takes work to move heat from cold and that is what the compressor does in a regular refrigerator. You pay the electric bill to pay for this work.
That is just one way to move heat though; now, an old method, the magnetocaloric effect, is being researched for use in a refrigerator. That is a big word that means certain materials will heat up or cool down when they are subject to a changing magnetic field. Imagine holding a bar of this material and passing a strong magnet over the it. You would feel a change in temperature, as a wave of hot and cold travels down the bar.
One of the most notable examples of the magnetocaloric effect is in the chemical element gadolinium and some of its alloys. Gadolinium's temperature is observed to increase when it enters certain magnetic fields. When it leaves the magnetic field, the temperature drops.
Researchers at General Electric have taken this effect and designed a new refrigerator that will use it to keep the refrigerator cold. And it could possibly be 20% more efficient than the compressor type.
"GE teams in the U.S. and in Germany picked up the problem again 10 years ago. They decided to build a cascade from special magnetic materials, where each step could lower the temperature just slightly. “We are taking a chunk of heat and pushing it down the ladder, from the cold insides of the refrigerator to the warm room outside” ⓐ
Researchers working in GE labs have used special magnetic material to achieve temperatures cold enough to freeze water. The breakthrough system, which is projected to be 20 percent more efficient than current refrigeration technology, could be inside your fridge by the end of the decade. ⓐ
The system is using a water-based fluid flowing through a series of magnets to transfer heat, rather than a chemical refrigerant and a compressor. This significantly lowers any harm to the environment and makes the recycling of old refrigerators simpler. ⓐ
“This is a big deal,” says Venkat Venkatakrishnan, a leader of the research team. “We are on the cusp of the next refrigeration revolution.” ⓐ
There are videos that explain this new magnetic refrigeration at the links.
Your next fridge could keep cold more efficiently using magnets
Deep freeze: how scientists are resurrecting magnet technology to cool refrigerators
Types of refrigeration.
Heat flows from hot to cold
Image: Wiki Magnetocaloric effect
13.8 billion years ago there was a Big Bang.
Or was that a Big Crunch or a Big Bounce?
Is our Universe living inside a Black Hole that is a doorway to another Universe?
A compelling new theory by Nikodem Poplawski of the University of New Haven sheds light on these questions.
Or does it?
What do you think?
Comment below and feel free to share
#SCION #science #opennetworking #opennetworker #blackhole #bigbangtheory #bigcrunch
Maybe we'll figure out how to thrust in different directions of time... not just "up", but possibly left and right time too. Relativistic time dilation seems to support the possibility, from the little I understand.
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