4 months ago • Existenzia

J. Lehaitre's Tractor-Cycle, developed in 1938, was an unusual all-terrain vehicle that combined features of a motorcycle and a tracked tractor. Instead of relying on conventional wheels alone, it used a tracked rear section that provided excellent traction across mud, sand, snow, and rough ground. Although its top speed was only about 25 mph (40 km/h), the design prioritized mobility over speed, allowing it to traverse terrain that would stop most vehicles of its era. Lehaitre later experimented with military variants, including a version equipped with a machine gun, reflecting the growing interest in versatile off-road vehicles during the years leading up to World War II.

5 months ago • Existenzia

Information desk at John F. Kennedy Airport (1956)

7 months ago • Existenzia

This is the oldest known photograph of London. It was taken in 1839 and focuses on the equestrian statue of Charles I near Charing Cross station. If you look closely you can see the ghostly forms of people who stayed still long enough to register on the exposure.

8 months ago • Existenzia

A 3M-T Atlant aircraft transports the hydrogen tank of the Energia space launch vehicle weighing 31.5 tons at Yubileiny airfield, (1982), Baikonur, Kazakh SSR

9 months ago • Existenzia

Multitasking - Curiosity Captures Mars Landscape While simultaneously communicating with an Orbiter, July 26, 2025.

9 months ago • Existenzia

Comet Churyumov–Gerasimenko as seen by the Rosetta spacecraft which visited it in 2014

1 year ago • Existenzia

Hey everyone, welcome to Existenzia! 
This is the beginning of a new journey, and I’m so glad you’re here. This channel is all about exploring the wonders of science, lots of fun, and a space where we’ll learn, question, and discover amazing things about our universe. This isn’t just my channel, it’s our community, so I’d love to hear your thoughts.