Science

Scientific topics, research, and discoveries

165 episodes Page 4 of 9

#5176: IAEA Reports Iran: What the Vote Actually Does

The IAEA Board reported Iran to the Security Council for the first time in 20 years — over 440kg of uranium it can't locate.

irannuclear-proliferationinternational-relations

#5174: Why Caffeine Can't Push You Through Cognitive Fatigue

What actually happens in your brain when you hit the wall — and why caffeine keeps you awake but can't restore hard thinking.

neurosciencecircadian-rhythmpharmacology

#5172: Who Decides When a Dialect Becomes a Language?

Languages fork like codebases — and the merge button doesn't exist. Who actually decides when a dialect becomes its own language?

linguisticshistorical-linguisticslanguage-evolution

#5168: Ten Inventors You've Never Heard Of

From the yellow traffic light to the geoid model behind GPS — ten inventors whose quiet work reshaped daily life, and why we forgot them.

geodesyintellectual-propertymedical-history

#5161: How Statistics Get Misread: A Field Guide

Averages, rates, correlations — the ten categories of statistics most likely to fool a general audience, and why the number is usually right.

taxonomycultural-biasinterpretability

#5159: Why Your Rescue Inhaler Still Shakes (and What Changed)

Albuterol hasn't changed in decades—but rescue itself just did. Here's why the blue canister still shakes, and what Airsupra fixes.

asthma-managementrespiratory-healthpharmacology

#5155: Why 3 Days Away Feels Like 3 Weeks

Why a weekend away can restore you more than two weeks with relatives — the psychology of novelty, detachment, and time.

circadian-rhythmneuroplasticityproductivity

#5151: Why Dry Heat Is a Different Animal

Dry heat at 45°C can be survivable while humid 35°C kills. The physics of sweat, the limits of acclimatization, and what Bedouin trackers see in sand.

human-factorsosintsensory-processing

#5149: What 40 Million Tons of Rubble Does to a Landscape

Satellite imagery shows the scale. It doesn't show the eight meters of crushed concrete, the asbestos dust, or the ordnance beneath.

satellite-imageryinfrastructurepublic-health

#5148: How the WHO Essential Medicines List Works

Five days in 1977, eight experts, one list that now shapes what billions of people can get from their pharmacies.

pharmacologypublic-healthhealthcare-policy

#5145: What Life Expectancy Really Meant in the 1600s

That "people died at 35" statistic? It's mostly measuring dead children, not short adult lives.

medical-historypolitical-historyhistorical-linguistics

#5128: The 120 Hz Problem: Why Your Window Can't Stop That Jackhammer

A bedroom-shattering 120 Hz tone reveals why low-frequency noise ignores windows, mocks active noise cancellation, and demands real physics.

audio-engineeringsignal-processingsound-transmission

#5126: The Volunteers Who Let Science Shock Them

Charles Dalziel's volunteers endured muscle-locking shocks to create the safety standards we rely on today. What do we owe them?

medical-historyhuman-factorsself-experimentation

#5120: Why Ground Rumble Ignores Your Acoustic Windows

Acoustic windows can't stop low-frequency rumble traveling through soil. Can wave barriers or base isolation actually work between city buildings?

structural-engineeringurban-planningstructure-borne-vibration

#5112: AC vs. DC: What Actually Happens When You Get Shocked?

Voltage isn't what kills you. Current is. Here's what really happens when AC meets the human body.

electrical-engineeringhome-safetyhardware-reliability

#5076: How Memory Palaces and Key Bowls Actually Work

Why checklists fail at the exact moment you need them—and what works instead.

adhdexecutive-functionneurodivergence

#5047: Balcony Solar in Jerusalem: What's Actually Possible?

Can a rented balcony in one of the sunniest cities on Earth power your gadgets? The physics says yes. The law says maybe.

solar-energydiytenant-rights

#5035: The Map That Lied: Africa vs. Mercator

The UN just voted 164-1 to correct a 450-year-old map distortion. Here's why Mercator still shapes how we see the world.

geopoliticsinternational-relationsmap-projections

#5030: How the Blue LED Quietly Rewired the World's Energy Grid

From 15% of global electricity to under 10%—how a semiconductor breakthrough made lighting nearly free and what's next.

electrical-engineeringsemiconductorslighting-design

#5029: How Much Tuna Is Actually Safe to Eat?

We break down the science of mercury in tuna, the real symptoms of toxicity, and whether canned fish can actually hurt you.

public-healthhealthdigestive-health