A new technology to boil water is in progress. This is an MIT project in which solar sponge is created. Using this solar sponge you can collect the sunlight to boil the water. The interesting this is that this solar sponge is created by the products that are easily available. This project was started in the year 2014. Here the bubble form and other materials act as a sunlight receiver. It reduces the cost of this solar sponge.
This technology will pave the way to other inventions and can create history in this world. For more details about this solar sponge please follow the below link.
Solar Sponge Can Soak Up Ambient Sunlight To Boil Water