Rare and Revealing Photographs that Will Change Your View of History

By Jack Ripley | December 15, 2023

The "Tilt Test" that helped prove that London's Double-Decker buses were safe and not a tipping hazard, circa 1933.

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Source: Reddit

In 1933, the iconic double-decker buses of London were put to the test in a daring experiment. The famous "Tilt Test" was conducted by engineers at Chiswick Works and involved tilting one of these buses nearly 30 degrees - an angle that would have been enough to send passengers tumbling out if it had tipped over. Thankfully, the bus remained upright and proved that double-deckers were safe for use on the streets of London, becoming a symbol of British engineering excellence and innovation ever since.

Check out the mesmerizing eyes of the ghost glass frog! It is called the ghost glass frog because of how well it can mimic the color of whatever leaf it’s sitting on.

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Source: Pinterest

The ghost glass frog is a truly fascinating creature! Its mesmerizing eyes and ability to blend in with its surroundings make it one of the unique amphibians on Earth. Native to Central and South America, this species was first discovered by French naturalist Charles Marie de La Condamine in 1799. This incredible frog has adapted over time to be able to mimic the color of whatever leaf it's sitting on - hence its name "ghost glass" frog. It's an amazing sight to see these frogs camouflaged so perfectly against their environment!