IN view of the widespread prehistoric use of flint for making tools and weapons, it is of interest to compare its structure and strength with those of present-day ceramic materials. The physical ...

President Trump on Monday night announced tariffs of 10% on softwood timber and lumber alongside a 25% tariff on "certain upholstered wooden products" due to take effect on October 14, according to ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. David Kindness is a Certified Public ...