Chengdu bitcoin coffee
on January 3, 2009, Nakamoto g up the first batch of 50 bitcoins on a small server in Helsinki, Finland
on May 21, 2010, the first bitcoin transaction: Laszlo hanyecz, a Florida programmer, bought a $25 pizza coupon with 10000 BTC
on July 16, 2010, the price of BTC rose by US $0.08 from US $0.008. The first sharp price fluctuation shows the rise of new things
on July 17, 2010, the first bitcoin platform was established
on November 6, 2010, the price on mtgox reached $0.5, and the bitcoin economy reached $1 million
on December 7, 2010, the first portable device to portable device transaction was realized on Nokia 900, with a transaction volume of 0.42btc
on February 9, 2011, the price reached US $1 for the first time, which is equivalent to US $1. The news that BTC is equivalent to us dollar has been widely reported by the media, which has aroused people's great attention, and the number of new users has increased greatly. In the next two months, bitcoin and pound sterling, Brazilian currency, Polish currency exchange trading platform has opened
on March 18, 2011, the BTC / USD exchange rate hit a seven week low, falling to US $0.7
on August 20, 2011, the first bitcoin conference and World Expo were held in New York. Among Google trend counties, bitcoin's attention reached a new high, with a price of $11 at that time
on November 14, 2011, the price of bitcoin hit a new half year low of $1.99
on September 15, 2012, the bitcoin conference was held in London. At this time, the price of bitcoin was $11.8
on September 27, 2012, bitcoin fund was founded, and the price of bitcoin was $12.46
on November 25, 2012, the first bitcoin conference in Europe was held in Prague, Czech Republic. At this time, the price of bitcoin was $12.6
on February 19, 2013, bitcoin client v8.0 was released. At this time, the price of bitcoin was $28.66
on April 10, 2013, BTC set a record high price of $110
on May 9, 2013, BTC Chinese, the largest bitcoin reporting website www.sosobtc.com The company obtained the investment fund Union Square's US $5 million round a investment, and the price of bitcoin was US $112.09 at this time< On May 28, 2013, the Department of Homeland Security banned the virtual currency service of Liberty Reserve, a Costa Rican exchange company, for its suspected xiqian and unlicensed fund transfer business, U.S. prosecutors said that this will become the largest international xiqian lawsuit in history, with the scale of absorbing money reaching 6 billion US dollars. A large number of users, including China, will lose all their money. At this time, the price of bitcoin is 128 US dollars
in June 2013, Netcom said that the United States will withdraw from qe3, deflationary bitcoin and quantitative easing monetary policy, which are the relationship between the two
on June 27, 2013, the German Conference made a decision: holding bitcoin for more than one year will be tax-free, which is considered by the instry to recognize the legal status of bitcoin. At this time, the price of bitcoin is $102.24
on June 28, 2013, mtgox obtained the monetary service license issued by the financial crime enforcement network office of the U.S. Department of the Treasury. Transaction standardization may mean that bitcoin is on the right track, government risk is reced, and its pace of integration into the display economy will be accelerated. At the same time, it will play an exemplary role in other virtual currencies. At this time, the price of bitcoin is $97.99
on November 28, 2013, the bitcoin trading price of Mt. GOx, a popular bitcoin exchange, broke through $1000, reaching a record high of $1073
on November 29, 2013, the trading price of bitcoin on Mt. GOx, a popular exchange, hit a record high of US $1242, while the price of gold was US $1241.98 an ounce, surpassing that of gold for the first time.
1. Because of its anonymity, British brothels pay for it
2. It can pay the tuition fees of European universities without cross-border fees
3. Public welfare organizations accept donations from bitcoin< However, bitcoin is not widely circulated in most areas, so if you want to buy vegetables with bitcoin immediately, you'd better wash and sleep
2. The situation of bitcoin in China, bitcoin is experiencing "ice and fire"
on the one hand, the central bank and other five ministries and commissions have issued a notice clearly pointing out that bitcoin is not a legal currency and cannot be circulated offline; At the same time, bitcoin went up and down, which made many people doubt that it was a huge bubble, and even a financial fraud under the guise of high-tech.
Stars emit light and heat by fusing lighter elements into heavier ones. All kinds of nuclear fusion reactions take place in stars all the time, the most important of which is the reaction of hydrogen fusion to helium
in stars with different mass, the reaction path of hydrogen fusion to helium is also different. In smaller stars, the fusion reaction of hydrogen nuclei takes place through proton proton chain reaction. The process is shown in the figure below
whether it is to split the iron core (fission), or to continue to increase the weight of the iron core (fusion), we need to increase the energy of the iron core. Inside a star, however, there's not enough energy. In this way, the energy generation of the star will stop, and the radiation pressure used to resist gravity will disappear. The star will continue to contract, and the speed of contraction will be faster and faster. Finally, the speed of external matter falling to the iron dominated stellar core will exceed 100000 km / s, but when it reaches the iron core, it will hit an extremely hard "wall", and the speed will instantly drop to zero. The huge kinetic energy will be instantly converted into heat energy, heating the iron core to billions of degrees. The outer layer of the iron core will explode at a very high temperature, exploding the falling material in the outer layer. This process is called "core catastrophe". This is a supernova explosion
at the same time of explosion, under the action of huge energy, a part of iron in the outer layer of iron core will absorb energy and form elements heavier than iron, from 27 element cobalt to 92 element uranium. The iron inside the iron core will press the electrons outside the iron nucleus into the nucleus under the pressure of implosion, and combine with the protons in the nucleus to proce neutrons. All the iron inside is converted into neutrons. When the outer shell is blasted and dissipated into space, the center of the star is exposed and becomes a neutron star with huge mass and small scale
after the stellar matter from hydrogen to uranium dissipates into space, it will mix with the original interstellar matter in space to form interstellar cloud, and form new stars and planets around stars under the gravitational disturbance. This is how our sun and earth came into being. That's how everything on earth except hydrogen and helium comes from
This is the case with nuclear fusion reactions on starswe are all the ashes of a supernova that erupted billions of years ago
Now bitcoin is out again, and it has reached the $20000 mark. Why? Who's hyping it? This issue is actually an international issue. Now I would like to talk about my personal views and Thoughts on this issue for reference and discussion only
problem summary
whether bitcoin has been hyped to $20000 or not, the current situation is like this, and there is no downward trend. With the economic instability, maybe bitcoin will rise to 30000 or 40000 in the future, but I advise investors not to participate in the unstable investment, Because there may be nothing, after all, human nature has weaknesses, the above is my personal point of view, for reference only
nowadays, digital currency is not very popular for payment, but it has derived other applications. For example, the token launched by European crowdfunding platform exists as an asset token.