While both the Bitcoin and Ethereum networks are powered by the principle of distributed ledgers and cryptography, the two differ technically in many ways. For example, transactions on the Ethereum network may contain executable code, while data affixed to Bitcoin network transactions are generally only for keeping notes. Other differences include block time (an ether transaction is confirmed in seconds compared to minutes for bitcoin) and the algorithms that they run on (Ethereum uses ethash while Bitcoin uses SHA-256). Ethereum to Crush Bitcoin - Why Ethereum Will Be the #1 Crypto
or Let's say more Startup project we have for now 5 project they are reall project each project give you good return everyday so of you invest for example :If you invest 10 USD in Ether we will keep 5 USD in our bank and we give the rest money 5 to the (company or the leader of the project )then he work daily . if something going wrong like these project is scam or stop we will ba k to you only 4USD so in these case you did not lose all your money but you lose some part.