As time goes by things fade, we let go of things to incorporate faster or better things into our lives, like the normal gas oven to a zippy microwave, forgetting the harmful affects it has on our bodies, sometimes inventions that existed come back to save us in the future, like Einstein's Refrigerator.

Well its no surprise that the current generation has no clue about Einstein's refrigerator as it was replaced with what occupies space in your kitchen, the freon compressor based, electricity guzzler that wipes out the ozone from our sky.

Einstein's fridge was not really invented by him but his former student Leó Szilárd that Einstein merely acted as a consultant and helping with the patent-related paperwork but its safe to assume that Einstein's name lent the research prestige and credibility.

But its interesting to know that the duo decided to work on the project when a couple in Berlin had be killed when the seal of their refrigerator broke and leaked out toxic fumes, it sure does not sound very pleasing to have a refrigerator that has lethal chemicals in it.

So they created one that has no moving parts and requires only a heat source to operate, its possible for it to work without electricity but I personally feel it would be a smarter mover as it would not have any burning.

It works with the principle that evaporation causes cooling the chambers are filled with ammonia, that works as the pressure-equalizing fluid, butane as the refrigerant, water works as absorbing fluid and today's scientists are trying to revive the invention with solar panels powering the heat source.

The Einstein refrigerator has know to be noiseless, inexpensive to produce and durable and now the scientists also say it would be a wiser option to save our environment. The reason it was phased out by the ones we currently use is much more powerful but the prototype of the new instead of using gas uses a magnetic field and a special metal alloy.

The magnetic field next to the alloy is like compressing the gas, and when the magnetic field leaves, it's like expanding the gas. This effect can be seen in rubber bands when you stretch the band it gets hot, and when you let the band contract it gets cold.

Interesting stuff to read more about it, take a look at how the Einstein fridge design can help global cooling.