Discover the physics governing light's motion, from its constant speed in a vacuum (the cosmic limit) to how it reflects, refracts, and is absorbed by matter.
Understand cross-bedding: the angled sedimentary layers formed by migrating dunes and ripples, revealing ancient flow direction and depositional environments.
Fact-checking the percentage of abortions performed due to rape. We examine the statistics, data collection challenges, and the broader context of patient motivations.