Homemade fuel made from used cooking oil can power any diesel vehicle. If you’re steering your household toward a more self-sufficient lifestyle, maybe you’d like to add do-it-yourself fuel to your ...

Hydrogen fuel cell technology is full of promise, but it’s being held back by the problem of storing the dangerous gas safely and efficiently. Some U.S. scientists have been tackling this, and their ...

Transparent objects have been quite popular at times, and the accelerated development of plastic types in the 60’s and 70’s has provided designers with constructive resources to put some of their ...