Explore Capsules

9 capsules

The Scientific Method in Practice: Inquiry, Evidence, and Teaching

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.

Science education · 73 stops · ~146 minFree
UFO Evidence: Science, Secrecy, and Skepticism

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.

UFO · 41 stops · ~82 minFree
GMO Safety: Consensus, Risk, and Regulation

GMO Safety: Consensus, Risk, and Regulation

GMO safety is shaped by scientific consensus, risk assessment practices, and regulatory standards that vary across institutions and countries. Readers will understand how safety claims are evaluated, where the main points of disagreement arise, and how evidence, uncertainty, and public oversight influence GMO regulation.

GMO safety · 81 stops · ~162 minFree
The Replication Crisis: Preregistration, Statistics, Transparency, and Incentives

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.

Replication crisis · 99 stops · ~198 minFree
Climate Skepticism and Consensus: Records, Cycles, and Models

Climate Skepticism and Consensus: Records, Cycles, and Models

Claims about unreliable temperature records, natural cycles, and overconfident models still circulate widely, and dismissing them unexamined convinces no one. The arguments here set the strongest skeptic cases against the evidence behind the human-caused-warming consensus, from CO2 records to how climate models earn their credibility. Working through both sides equips you to hold an informed position rather than an inherited one.

Climate change · 93 stops · ~186 minFree
Self-Control: Evidence, Environment, and Habit Change

Self-Control: Evidence, Environment, and Habit Change

The idea that self-control drains like a battery shaped years of advice, and now it is under fire. These views range from failed replications of the depletion studies and sharper testing methods to the argument that culture and environment shape self-control far more than inner grit. You can decide how to actually strengthen your own discipline.

Willpower · 87 stops · ~174 minFree
MSG Panic: Science, Bias, and Food Safety

MSG Panic: Science, Bias, and Food Safety

A single 1968 letter to a medical journal helped launch fifty years of fear about MSG. The views clash over whether the panic was a baseless mistake, a product of anti-Asian bias, or a warning about real health risks that science has yet to close. Trace how the scare spread and decide for yourself what belongs in your food.

MSG · 35 stops · ~70 minFree
Studying Lasting Love: Evidence, Methods, and Limits

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.

Relationship research · 107 stops · ~214 minFree
5G Tower Health Fears: Physics, Psychology, and Precaution

5G Tower Health Fears: Physics, Psychology, and Precaution

5G towers went up alongside a wave of health fears, and the responses to those fears don't line up. Some arguments hold that basic physics rules out harm, one traces the anxiety to psychology rather than radiation, and another still counsels precaution despite thin evidence. Weighing them settles how much attention the worry deserves.

5G · 40 stops · ~80 minFree