Why Humans can't fly like birds,or even mammal like bats.

Humans are considered as one of the most intelligent species on this planet but still we do lack certain features which such as the power of flight.But regardless the fact we can;t fly but as we are the intelligent species we have created means Artificial means which can help us fly.

But very basic question is why can't we fly as such,over the course of time we have learnt how to climb tree,big mountains,we learned how to swim,so why we couldn't evolve how to fly .

The  flight is that the most energetically high-ticket kind of travel, and wishes the complete remainder of the physiology to be tailored for flight. specifically, flight needs as very little mass as potential with an over sized distance and skill to speedily move muscles. this suggests the organism must absorb immense amounts of energy relative to its body size.

I will assume that you just area unit talking regarding humans evolving wings once they diverged from our most up-to-date common relation with chimpanzees.

For this to be possible, humans would want to evolve several of the variations usually concerned on the wing (wings, hollow bones, very high metabolism with heart rates throughout flight within the 200+ beats per minute vary, loss of virtually all body fat, loss of mass in appendages supernumerary for flight like the legs etc). the sole vertebrate to with success gain true flight area unit haywire, and that they are diverged from the remainder of the class tree for a hundred million years. we have a tendency to simply haven\'t been evolving for long enough, and additional significantly we have   been evolving to fill a very totally different biological process niche than the one stuffed by flying animals. it\'s primarily not possible for evolution to alter trajectories thus drastically on such short notice.

Most significantly, 1/4 of all of our energy intake is employed to feed our brain. Large, advanced brains area unit most likely basically incompatible with flight, as they\'re each immense energy sinks and that we wouldn\'t be able to fairly support each. Evolution would take away one or the opposite as the simplest way of up survival. Therefore, we\'d possible got to lose all of our understanding to be able to fly. thus if you may fly, you\'d most likely not have any of the hallmarks of a conscious organism.

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Unknown Thursday, November 28, 2013  No comment

DNA will replace hard drives

DNA should not be just a medium for genetic imprint for organism ,it can be used as a information storage unit,the advantage of DNA is it's abundance it's freely available

DNA has been storing information for millions of years passing from generation to generation with very low error rate.That gives DNA an advantage of keeping our data secure.Now we are in the age of information ,the age of big data,we need to store these data effectively and not only storage but we can retrieve and do the job to our need.

DNA vs Hard drive

What might be the constraint for DNA to be used as Storage device?

One  need to develop an interface that allows for quick storage, reading and error correction of DNA.  Then it will need to be perfected.
 
Computer storage is measured in many ways.

• Access time
• Write speed
• Read speed
• Longevity
• Capacity
• Power consumption
• Physical size
• Error rate
• Cost

In order to replace hard drives, it will need to have a a clear advantage in at least one area and be relatively close in most other areas.  Given that we don't have this capability at all, it will need to be created and iterated until it shows an advantage.  By the time this happens, I doubt we will be using hard drives anymore.
 
Flash memory has replaced hard drives in many applications - it exceeds hard drive technology in several aspects and it's in the ballpark in most others.  It is a mature technology that is very profitable and many companies are refining it.  As a semiconductor-based technology it can benefit from improvements in other areas of semiconductor research.  I predict that it, or another technology, will displace hard drives in the majority of applications before DNA storage is commercially available

What are the other aspects of DNA that make it a perfect choice for being used as a storage device?

 Storage density of DNA is at least a thousand times greater than that of any storage device so far humans have created

For example the cheap storage media such as the magnetic tapes used to data archiving becomes fragile and gets degraded.

Another aspect is the format,some format that was/were the standard of late 70's now does't exist so it's really difficult for the data of that period to be viewed in today's software and store it effectively .

Biggest advantage of DNA is it's stability it is the most sturdy molecule that was ever created on this earth it can remain for millions of years without getting degraded .

So I hope like other fancy technology that were just a thought came into our life I hope to see this DNA storage technology to be seen soon and used in our daily life.

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Unknown Wednesday, November 27, 2013  No comment