It depends on what you do with it, but the general answer is yes

My personal favourite ,Bitcoin Exchange, Trading BTC USD, BTC EUR - CEX.IO is the best Destination to buy/sell Bitcoins,Ethereum and Litecoins.

1. A cryptocurrency is a digital currency created and stored electronically in blockchains.

2. It uses encryption techniques to control creation of monetary units and to verify the transfer of funds. Hence it is very secure.

3. It has no physical form but now because of BOOM in the sector it is redeemable in another commodity like gold.

4. Its supply is not determined by any central bank or authority and the network is completely decentralised.

5. Bitcoin, Ripple, Litecoin and Ethereum are examples of cryptocurrencies.

6. And the most important thing is cryptocurrency is the best way to invade taxation.

They are trying to make sure that bitcoin isn't used to circumvent currency controls.  The Chinese government does not want to make it easy to convert RMB to dollars, and bitcoin is a way of doing that.

Update: It appears that there wasn't a direct regulatory instruction.  BTCChina is not accepting RMB deposits now, but other Chinese exchanges seem to be.

Bitcoin has less number of coins than the actual demand. That is the main reason of the price surge. Less supply, High demand.

Which mining would you suggest, Bitcoin, Litecoin, Ethereum, or another? Which one is more profitable for beginners?

How long would it take to mine a Bitcoin on an AVR chip (Arduino)?

Blockchain is the foundational technology behind Bitcoin. This interconnected web of computers and servers is decentralized and runs transactions against a single, public ledger. A copy of this ledger is in every node of the blockchain network, and for every transaction, every other node must agree with and verify the transaction.

These transactions are verified by lottery; miners are randomly awarded the ability to add a block to the chain and verify a transaction to redeem the Bitcoin transaction fee. This combination of decentralization and pubic transparency makes blockchain the most fool-proof financial system to date.