💥 PzH 2000 vs M109: Battle of the howitzers and China is building gravity batteries

Check out this week's top 5 IE Originals videos, featuring the most fascinating stories in science, engineering, and tech.

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China is Building Gravity Batteries

The push for renewable energy sources has birthed a new problem: where will we store all that energy? What happens if the sun isn't up, there is no wind, but the city still needs power? This new technology just might be the answer: gravity batteries.

PzH 2000 vs M109: Which Self-Propelled Howitzer Reigns Supreme?

Self-propelled howitzers are the steel backbone of modern artillery warfare—combining raw firepower with battlefield mobility to deliver devastating strikes deep behind enemy lines. Leading the charge are two legendary systems: the German PzH 2000 and the American M109. Though built decades apart and shaped by different doctrines, both have evolved into dominant forces on the modern battlefield.

The Incredible Story of the World's Longest Ship

Most people are familiar with the Titanic, but few know the incredible journey of Seawise Giant, the world's longest ship - longer than the Eiffel Tower - that even missiles and bombs couldn’t end.

U.S. Close Air Support in Action: AC-130, AH-1Z Viper and A-10 Warthog

The art of Close Air Support brings the A-10, AC-130, and AH-1Z Viper into action, delivering devastating firepower to protect ground forces and dominate the battlefield.

What Happened to Libya's Great Man-Made River Project?

The Great Man-Made River (GMMR) is an extraordinary network of pipelines, hailed as the world's largest irrigation project. Stretching across Libya, it channeled fresh water from the ancient Nubian Sandstone Aquifer System to the bustling northern Mediterranean cities, including Tripoli and Benghazi. Covering a remarkable distance of up to 1,600 kilometers, this system supplied 70% of all freshwater used in Libya, transforming the arid landscape and supporting millions.