Science

Swiftlet

bird

Powell, John Wesley

American explorer, geologist, and ethnologist

Diatom

Characteristics, & Reproduction

Orthopteran

Natural History, & Classification

Analytical Engine

Description & Facts

Heliophyllum

fossil coral genus

Sitatunga

mammal

Fukui Kenichi

Japanese chemist

Aepinus, Franz Maria Ulrich Theodor Hoch

German physicist

Alkanet

plant

Fluid

Models, Newtonian Fluids, Non-Newtonian Fluids, & Facts

Pintail

Habitat & Facts

Thallium

chemical element

Beta Lyrae

star

Tritium

chemical isotope

Stratospheric Sulfur Injection

geoengineering