Ever wonder what the hardest wood in the world is? A professional woodworker explains the Janka scale and how wood hardness is measured.

When trying to decide what type of hardwood to install in your home, you may be considering either oak or olive. Discover the ...

Hardwood flooring brings timeless style to a home. Learn the essential details and costs of the many wood flooring options ...

杨卡硬度（英语：Janka hardness test）以奥地利出生的美国研究员Gabriel Janka命名，用以描述木材的硬度。常用标准为ASTM D1037。 迈氏硬度（英语：Meyer hardness test）以Eugene Meyer命名。 H = P max A p {\displaystyle ...

Learn about our editorial policies In economics, the term diseconomies of scale describes the phenomenon that occurs when a firm experiences increasing marginal costs per additional unit of output.

Janka ratings rank the relative hardness of wood species used in flooring ... Ratings for both domestic and exotic species are included in the scale, with northern red oak considered the base ...

High-quality strand-woven bamboo, whether solid or engineered, ranks high on the Janka hardness scale, in some cases outperforming even Brazilian cherry. High quality traditional bamboo is less ...

Scale AI was conceived in 2016 as a one-stop shop for supplying human labor to perform tasks that could not be done by algorithms — essentially, the antithesis of AI. Cofounders Alexandr Wang ...