Saturday, August 29, 2009

More "Earths" In Our Galaxy?

With every day passing in this scientifically developed era, many new theories and thesis our entering our paramount shelves. Just due to the complicated inceptions of instruments and tools, we have been able of peeking into the exact celestial bodies that are moving around and constituting our galaxy, Milky Way.

In the March’s published reports from CNN, it was widely pointed out that there might be other “Earth-like” planets present in our galaxy. These planets have the possibility of being rich with life either primitive or modern. Although there is an equal possibility that these planets might have developed civilisations billions of years ago there is the same certainty that these might after such time period.

By the mere association between Earth and other resembling planets out there, it is actually intended that these planets may be approximately many times that of the size of Earth but still smaller than the various gas planets like Jupiter. Alan Boss, an Astronomer with the Carnegie Institution, besides stating the above estimation, also called out that if these planets have the presence of liquid water, then, there is an equal possibility of life on them.

But it isn’t quite necessary that they may be crowded by sprawling intelligent human beings or even dinosaurs, but there might be existence of some multi-cellular organisms or specifically a sort of primitive life like bacteria which already dominated our planet in the first 3 billion years of its existence.

Though the investigation took a more interesting turn when the researchers at University of Edinburgh at Scotland, made up a computer model to resemble Milky Way with billions of stars and planets. Using up this virtual model, they then studied the major evolution of life under various conditions.

These researches then concluded in the International Journal of Astrobiology, from 38,000 that have been formed, 361 intelligent civilizations have emerged. This explicit study has made clear the existence of an another possible living being in the galaxy and the certainty exhibited by the virtual graphics seems quite authentic but it also poses various questions like the ones associated with the discovery of exoplanets—that orbit sun-like stars located outside the solar system.

Sunday, August 9, 2009

Self-cleaning Clothing

The mere mysterious nature of science and technology alone invites extensive researches and comprehensive experiments be carried out just to unravel the greatest evidences that can deny our prevalent myths regarding the many inventions and yet to be initiated inventions.

The inventions closely associated with our routine life are welcomed with zeal and zest and with a burning hope that it might placate our chores and prove to be quite handy and convenient in use. One such recent under-observation discovery and research is regarding “self-cleaning clothing”.

As the name suggests, this new innovation has been discovered and is being developed to enable the automatic cleaning of the clothes without the involvement of manual labour. This main derivation and implication has been primarily created by the researches in Monash University located in Victoria, Australia.

They discovered an exclusively indigenous way of applying the Titanium Dioxide nanocrystals onto the natural fibres thus making up a smooth coating. Natural fibres in use of the experiment are silk, wool and hemp. The nanocrystals specialize in the breakdown food and dirt whilst being placed in the sunlight. So the clothes which have the applied- coating on them, will automatically shed the grim stains of food, drinks inclusive of those specially produced by Red Wine as well.

To explain this behaviour, a simple theoretical account can be given. Titanium Dioxide is consumed in toothpastes, sun-blocks and paint and is a strong photo catalyst, side by side. According to official reports, in the presence of water vapours and sunlight, the compound shapes into hydroxyl radicals and hence breaks down the organic matter.

Besides performing these extremely significant tasks, these crystals pose, whatsoever, no evident harm or decomposition of the wool. Likewise, there is no subsequent change in the texture and appearance of the cloth. As the compound has the general characteristic of breaking down the organic matter, hence, it also destroys the bacterial organisms that may be present in the clothes. Their cell walls are easily destroyed consequently they are unable to carry out their living activities and soon die out. For this matter they can be successfully consumed in the hospitals and medical operations.

Although such nanoparticle or nanofibre based repellents, in paints and fabrics have been consumed before, though on a smaller scale, this latest technology involving the use of sunlight has, no doubt, aggravated the passion inside the manufacturers to create new competitive products for the world-wide masses that will also augment their individual potential markets and their subsequent profits and sales.