Despite the name, Science Magazine is a journal like Nature. A subscription even costs about the same as Nature, about $150/year, less if you're a student.
2LOT is a basic principle of the natural world. The simplest way of stating 2LOT is in terms of a closed system, but of course it applies to all systems, both open and closed. Another simple way of stating 2LOT: "Heat always flows toward cold and never the reverse unless work is done."
--Percy