As soon as President Donald Trump took office on Jan. 20, 2025, he signed an executive order titled “Ending Radical and Wasteful Government DEI Programs and Preferencing^[1].” This order called for the termination of all diversity, equity, inclusion and accessibility – DEIA – mandates, policies and programs in the federal government.

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To a nonmathematician, having the letter “i” represent a number that does not quite exist and is “imaginary” can be hard to wrap your head around. If you open your mind to this way of thinking, however, a whole new world becomes possible.

I’m a mathematician who studies analysis^[1]: an area of math that deals with complex...

Curious Kids^[1] is a series for children of all ages. If you have a question you’d like an expert to answer, send it to This email address is being protected from spambots. You need JavaScript enabled to view it.^[2]. Is ranch dressing a liquid or a solid? – Gabriel, age 8, DeLand, Florida Imagine you’re eating dinner. You try to pour some ranch dressing^[3] onto your plate to dip your