The amount of sleep we need changes as we get older, and itâs also a personal thing â some of us need more than others. As long as youâre feeling refreshed and alert the next day, youâre probably getting enough. Although there is no magic number of hours, hereâs a general guide for how much sleep you need.
Softwood Lumber. News. The softwood lumber industry is an important sector in the Canadian economy, supporting thousands of jobs in communities across Canada and creating many positive spin-off effects in related industries and services.
As it turns out, a hardwood is not necessarily a harder material (more dense) and a softwood is not necessarily a softer material (less dense). For example, balsa wood is one of the lightest, least dense woods there is, and it's considered a hardwood.The distinction between hardwood and softwood actually has to do with plant reproduction. All trees reproduce by producing seeds, but the seed structure varies.vergreens do tend to be less dense than deciduous trees, and therefore easier to cut, while most hardwoods tend to be more dense, and therefore sturdier. But, as the classification of balsa wood demonstrates, there is no minimum weight requirement to become a hardwood. Here are some interesting links: