all operator stations must have emergency-stop (e-stop) switches. if i recall correctly from my physics classes in school, this statement is not far from the truth. together, these data points work to show more accurate measurements of performance. at any rate i was able to squeeze 1 year of serious study into 3 years of desperate study. harvesting baby salad leaves from perhaps unusual places, it’s all part of the joy of gardening. 2. you can use it to make activated carbon. if the wider culture in the business is essentially broken, then you might as well pour the money down the drain. 