Category: Science

Do Mongolian marks go away?

Mongolian spots (MS) are non-blanching hyperpigmented patches over the gluteal region that usually present at birth or in the first few weeks of life. The...

What does HSS stand for in tube?

Hollow Structural Sections Hollow Structural Sections (HSS) are manufactured hollow steel sections, typically of circular, rectangular, or square cross-se...

Can sliding doors have screens?

It should come as no surprise to anyone that there are now sliding screen doors that can be added to a typical screen door. However, you will need to choo...