Some articles in the world of science:

Classification: double variables in the world of biology and chemistry.

Table of lengths.

1 of the most common concepts in science and in life: what is selectivity?

A topic that combines biology, chemistry, and computer science: separation processes.

Updates: as of mid-June 2023, we are proud to say we now have pages on electives, such as the world of jewelry, smartphones, cars (including a table on car recalls), and wines (in botany page).

5 reasons why I love the government more than companies.

If a turtle saw another turtle was flipped upside down, will it help flip it back up?

What George Floyds death means for the increased theft of catalytic converters.

History of corporate lawsuits among the scientific industry, and related.

Mutual Exclusion: where something can do A and B, but not A and B at the same time.

Updates: in mid-Dec. 2023, we are pleased to have created 3 new core pages, on materials, photochemistry, and nutrition.

In mid-June 2025, we are pleased to have created 2 more pages, on field theory, and cosmetic chemistry, and hydraulics in Aug. 2025.

The evils of private equities.

On Sept. 19, 2025, President Trump increased the H-1B visa fee from $1,500 to $100,000. An overview of who the H-1B visa employers are.