A lot of common words, like Jacuzzi, dumpster, and Styrofoam, are or were trademarked names but have largely been "genericized". (M)aybe this picture will get you hot like kerosene
In science, a law isn't "better than" a theory. Laws are descriptive (e.g., energy is neither created nor destroyed) while theories are explanatory. Both are well supported by evidence (M)