Buffalo dung, it can be used for fuel. Could produce natural gas, and can be used for cooking and so on. Process is also quite simple. We are holding this buffalo dung, and leave until a few days, then the gas has been formed, and can be channeled to the furnace or the stove as fuel. I think this is a good step in utilizing an energy waste as material for our lives.
For some people, math is a difficult subject to master. If parents who have problems like that, of course, will have trouble when they serve as a math homework help for their children. It would be nice when the children ask their parents about the algebra 1 or algebra 2 , they can answer it. But, how do we study mathematics? Should we go back to school? I think, there are many ways to learn math again. For example, by using an online tutorial that provides math statistics help , calculus help , geometry help , Algebra 2 Help and others. I think, our kids will be more proud of us, when we could help for their math homework.