Map of driving directions from Spring, TX to Houston, TX. Click here to show map. Drag the line on the map to calculate the driving distance for a different route. If you want to verify these driving directions or look for another possible route, you can try. Google Maps, Bing Maps, or MapQuest.
The second (symbol: s) (abbreviated s or sec) is the base unit of time in the International System of Units (SI).
Second law of thermodynamics. The second law of thermodynamics states that the total entropy of an isolated system can only increase over time. It can remain constant in ideal cases where the system is in a steady state (equilibrium) or undergoing a reversible process.