Diseases, Conditions, Syndromes

What we know so far about COVID-19 and children

President Donald Trump has been censored on Facebook and Twitter after saying children are "almost immune" from COVID-19. What do the facts say?

Psychology & Psychiatry

Racial discrimination linked to suicide

In this age of racial reckoning, new research findings indicate that racial discrimination is so painful that it is linked to the ability to die by suicide, a presumed prerequisite for being able to take one's own life. However, ...

page 1 from 85

Black

Black is the color of objects that do not emit or reflect light in any part of the visible spectrum; they absorb all such frequencies of light. Although black is sometimes described as an "achromatic", or hueless, color, in practice it can be considered a color, as in expressions like "black cat" or "black paint".

This text uses material from Wikipedia, licensed under CC BY-SA