Crash Course Cardiovascular System : Cardiovasc... Apr 2026

The Crash Course Anatomy & Physiology series (Episodes #25–#28) details the cardiovascular system, focusing on the heart as a high-pressure pump and the specialized functions of blood vessels. Key concepts include the electrical conduction pathway, the distinct roles of arteries and veins, and the "figure-eight" path of pulmonary and systemic circulation. Watch the full series on the Crash Course Website .

Crash Course Cardiovascular System : Cardiovasc... Apr 2026

In a battle between two of the most popular big-game magnum cartridges of all time, which one comes out on top? Here’s the full breakdown
By Richard MannSep 25, 2025
7mm Rem Mag vs 300 Win Mag loads resting on a board.
(Photo/Richard Mann)

7mm Rem Mag vs 300 Win Mag: Which Is Better?

The Crash Course Anatomy & Physiology series (Episodes #25–#28) details the cardiovascular system, focusing on the heart as a high-pressure pump and the specialized functions of blood vessels. Key concepts include the electrical conduction pathway, the distinct roles of arteries and veins, and the "figure-eight" path of pulmonary and systemic circulation. Watch the full series on the Crash Course Website .

From our Expert
Richard Mann, Shooting Editor at Field and Stream
Richard Mann
Shooting Editor
Richard Mann was born and raised in West Virginia and has hunted from the Montana mountains to the green hills of Africa. In 2015, Mann began contributing to Field & Stream to cover guns, ammunition, ballistics, and hunting. In 2022, he was named as the brand’s Shooting Editor. Learn More
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