By Mark Jones On the second pull, there was a cloud of white smoke and the engine sputtered to life. My 20-year-old snowblower was ready to tackle the fresh snow. The 2-cycle fumes hitting my face come with twinges of guilty. I don’t need to use the snowblower. My trusty snow shovel offers a fumeless,…

By Mark Jones “Dumber than a box of rocks” is a colorful idiom. Suppose it is wrong. Suppose a box of rocks is actually smart. I will admit I checked the cover of Power magazine when I first read about thermal energy storage using a box of rocks. I checked to make sure it wasn’t…