People enjoying a ride on a slide while cars are stuck in traffic jam.

Calw’s Gravity-Driven Mobility Experiment - Using Slides as Public Transportation

The city of Calw in Southern Germany is about to open a new, eco-friendly transportation system: A couple of slides connecting their park with the city center. Riders will cross the distance in seconds instead of minutes. Can it become a model for other cities?

September 7, 2026 · stefan
standseilbahn-catr

Three Transportation Solutions That Don't Need Energy

Well, just about everything needs energy. But there are a few transportation systems that use energy that is already available and not used for anything else. In this article, I want to show you three solutions that require no oil to be pumped, no coal to be burned, and no electricity to be generated.

December 10, 2023 · stefan
scania_catenary_truck

Catenary Trucks - The Future of Zero-Emission Road Transport?

The transport sector is responsible for a large proportion of global greenhouse gas emissions. It is essential that it be converted to renewable energy. For cars, the transition to mainly battery-electric vehicles has begun. But for trucks, the technology of choice is not yet clear. Because they are much heavier than cars, they will also need larger batteries. Right now, there is a race between battery electric trucks, hydrogen trucks, and overhead catenary trucks. Yes, you read that right: Trucks with a catenary, like an electric train! How do they work and what are their chances in this competition? Read on to find out more.

November 26, 2023 · stefan