The Son Doong is situated below another cave in Phong Nha-Ke Bang,
though its entry passage is very difficult to traverse. The exploration
team said they had set foot on just 6.5 kilometers along the cave, as
there is a large amount of fast flowing water inside Son Doong. It takes
explorers six hours of walking through a 10 kilometer long forest path
from Truong Son Highway to reach the mouth of Son Doong cave. The
explorer added that the Quang Binh cave has beautiful stalactites and
stalagmites that are not seen anywhere else. Phong Nha-Ke Bang grotto
system belongs to the Phong Nha-Ke Bang National Park. It is a limestone
region of 2,000 square kilometers in Vietnam and borders another
limestone area in Hin Nammo in Laos. When describing the
newly-discovered cave, the team’s spokesman, Haward Limbirt, said that
it was a thing of overwhelming beauty and grandeur. He added that each
grotto has its own beauty, but he is impressed by Ca Xai. This cave is
near the Vietnam-Laos border. It is very deep and has a big lake inside.
Explorers measured the depth of this lake, but they had only 200m of
rope and the end didn’t reach the lake bed. The British team suggested
to the local authorities not to develop Son Doong Cave as a tourism site
immediately to preserve its natural beauty.
Thứ Ba, 2 tháng 6, 2015
Chủ Nhật, 24 tháng 5, 2015
Bitcoin 2015 - What is bitcoin?
With the Bitcoin price so volatile everyone is curious. Bitcoin is extremely complicated and no one definition fully encapsulates it. By analogy it is like being able to send a gold coin via email. It is a consensus network that enables a new payment system and a completely digital money.
It is the first decentralized peer-to-peer payment network that is powered by its users with no central authority or middlemen. Bitcoin was the first practical implementation and is currently the most prominent triple entry bookkeeping system in existence.
Who created Bitcoin?
The first Bitcoin specification and proof of concept was published in 2009 by an unknown individual under the pseudonym Satoshi Nakamoto who revealed little about himself and left the project in late 2010. The Bitcoin community has since grown exponentially.
Satoshi's anonymity often raises unjustified concerns because of a misunderstanding of the open-source nature of Bitcoin. Everyone has access to all of the source code all of the time and any developer can review or modify the software code. As such, the identity of Bitcoin's inventor is probably as relevant today as the identity of the person who invented paper.
Who controls the Bitcoin network?
Nobody owns the Bitcoin network much like no one owns the technology behind email or the Internet. Bitcoin transactions are verified by Bitcoin miners. While developers are improving the software they cannot force a change in the Bitcoin protocol because all users are free to choose what software and version they use.
In order to stay compatible with each other, all users need to use software complying with the same rules. Bitcoin can only work correctly with a complete consensus among all users. Therefore, all users and developers have a strong incentive to protect this consensus.
How does Bitcoin work?
From a user perspective, Bitcoin is nothing more than a mobile app or computer program that provides a personal Bitcoin wallet and enables a user to send and receive bitcoins.
Behind the scenes, the Bitcoin network is sharing a massive public ledger called the "block chain". This ledger contains every transaction ever processed which enables a user's computer to verify the validity of each transaction. The authenticity of each transaction is protected by digital signatures corresponding to the sending addresses therefore allowing all users to have full control over sending bitcoins.
Thus, there is no fraud, no chargebacks and no identifying information that could be compromised resulting in identity theft. To learn more about Bitcoin, you can consult the original Bitcoin whitepaper, read through the extremely thorough Frequently Asked Questions or read the latest Bitcoin news.
Sponsors for free Bitcoins
Many people new to Bitcoin are curious about how to get some. Bitcoin faucets, places where bitcoins are given away for free, have been a part of spreading Bitcoin since the earliest days. But one problem is running out of bitcoins to give! That is why we have figured out a sustainable way to give away free bitcoins with sponsors just like Bitgold gives away gold
Thứ Tư, 20 tháng 5, 2015
Những tình huống hài hước nhất năm 2015
Video tổng hợp lại những ảnh gif khá là funny, hài hước. Và nhung tinh huong hai huoc sẽ giúp chúng ta xả stress trong những ngày làm việc căng thẳng :D
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