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10 capsules

The Scientific Method in Practice: Inquiry, Evidence, and Teaching
Scientific inquiry is often taught as a fixed sequence, but real research moves through questioning, evidence, interpretation, revision, and judgment in more complex ways. This capsule examines how the scientific method has been represented in classrooms and practice, helping readers understand how science works and how it can be taught with greater accuracy and depth.

Studying Lasting Love: Evidence, Methods, and Limits
Studying love scientifically forces awkward choices about what counts as evidence. The methods here span controlled experiments chasing cause and effect, frame-by-frame observation turned into math, deep single-case studies, and models that treat couples as constantly shifting systems, with some researchers insisting there are hard limits on what any of it can know. Where you land shapes which relationship advice you take seriously.

A Critical Thinker's Guide to Testing Stories and Claims
Some stories survive because they are true, and some just because they are good, and telling the difference takes more than gut feeling. These methods differ on what counts as solid ground: some weigh the reliability of sources, others lean on hard data and statistical measures, and others read physical or historical traces. You'll be able to pick the right way to test a claim before you believe it or pass it on.

Astrology and Evidence: Testing, Bias, and Self-Reflection
Astrology keeps failing rigorous tests of predictive power, yet millions still organize their lives around it. These views span the science that debunks it, the cognitive biases that sustain belief, and the case for horoscopes as tools for self-reflection rather than prediction. Weighing them shows what astrology can't do and what it still does for people anyway.

Power Posing and Confidence: Evidence, Replication, and Practical Limits
Power posing became a popular claim about confidence, hormones, and behavior, but later replication efforts sharply narrowed what the evidence can support. This overview explains the original findings, the methodological disputes, and the difference between measurable effects and subjective confidence. Readers will learn where posture-based confidence techniques may be useful, where the science remains weak, and how to apply such tools without overstating their power.

Einstein and the Math Myth: Facts, Genius, and Scientific Storytelling
The story that Einstein flunked math is flatly false; he excelled from childhood. Yet the myth refuses to die, and the arguments here dig into why comforting stories outcompete documented facts and what that says about how we talk about struggle and genius in science. Unpicking one famous myth gives you tools for spotting the others you have absorbed.

Artificial Sweeteners and Safety: Evidence, Regulation, and Risk
Artificial sweeteners are widely used in foods, drinks, and medicines, and their safety is assessed through toxicology, epidemiology, and regulatory review. This overview explains how agencies evaluate acceptable intake, why some studies raise concern, and how to distinguish credible evidence from alarm. Readers will be able to interpret sweetener safety claims with a clearer understanding of risk, uncertainty, and regulation.

The Replication Crisis: Preregistration, Statistics, Transparency, and Incentives
The replication crisis has exposed how fragile published findings can be when studies are repeated under closer scrutiny. This overview explains the roles of preregistration, statistical thresholds, trial transparency, and professional incentives in shaping research reliability. Readers will understand the main reform proposals, their tradeoffs, and why the debate over whether science can correct itself remains unresolved.

UFO Evidence: Science, Secrecy, and Skepticism
The UFO question splits into evidence-first investigation, government secrecy and oversight, the scientific search for alien life, and the cultural and psychological lenses we view it through. These approaches show where skeptics and open-minded researchers diverge on what the evidence actually supports. You can weigh the science against the speculation and reach your own view.

String Theory and Falsifiability: The Test of Real Science
Science earns its authority by making predictions that could fail, and string theory doesn't. Against its popularity among physicists, the argument here places untestable theory closer to metaphysics than physics, however elegant the math. Taking this view means judging every theory by whether an experiment could ever prove it wrong.