Scientific racism was one of the most harmful misuses of knowledge in modern history. It used the language of #science, measurement, classification, and progress to support false ideas about human hierarchy. Although it presented itself as objective research, it was shaped by #bias, colonial power, social inequality, and political interests. This article studies scientific racism as a historical case of how knowledge can be misused when research is separated from #ethics, soc

Academic research depends on careful thinking. It is not enough to collect facts, describe events, or repeat opinions. A researcher must use #logic to connect evidence with explanation. Two of the most important logical methods in research are #induction and #deduction. Induction begins with observation. It studies facts, cases, experiences, or data, then moves toward a wider idea, pattern, or theory. Deduction begins with a general idea, theory, or rule, then tests whether i