title: Is smartcontract the only way to transfer ether in Ethereum network?
body: <p>I am new to smartcontract and start writing some demo code in Solidity to work with Ropsten testing network. I see that I can use <code>send</code>/<code>transfer</code> method in the contract to transfer ether to other accounts. One question about it is that is contract the only way to transfer ether? Can I transfer ether without a contract?</p>
  <p>I understand the concept of the <code>contract</code> but not sure whether it is a required thing in Ethereum. When I deploy a contract to the network, it will be sitting in a new block and all transactions generated from this contract are in the same block? Am I understand correctly?</p>