Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

It’s called mental inversion, and here’s how it works. Thinking forward is an automatic process. Cause, then effect. Input, then output. A to B. It feels logical—and normal to start with a conclusion, ...

Image specialist Andy Saunders on mining NASA's archives for the ultimate record of America's early space programs ...

So craft one, in clear language, about your problem. Write about why the change is needed, how things will shift and what you ...

Garrett Andrews is an adjunct faculty member in the Department of Political Science at Portland Community College where he teaches State and Local Government. With five years of experience as a writer ...

The findings, according to YouGov, suggest the misperceptions are driven by a universal cognitive bias affecting how humans process uncertain information. So next time someone claims “most Americans” ...