The Eiffel Tower Can Grow Taller in Summer
Due to thermal expansion, the iron structure of the Eiffel Tower expands in the heat, causing it to increase in height by up to 15 centimeters. Conversely, it shrinks back down in colder temperatures.
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There's a Super-Earth Planet Made Mostly of Diamonds
Located about 40 light-years away, 55 Cancri e is an exoplanet thought to have a significant portion of its mass as diamond due to its carbon-rich composition and extreme pressures and temperatures. Its surface is likely covered in graphite and diamond.
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Some Species of Jellyfish Are Biologically Immortal
The jellyfish *Turritopsis dohrnii* has the unique ability to revert to its juvenile polyp stage after reaching sexual maturity, effectively restarting its life cycle. This process can theoretically repeat indefinitely, making it a truly remarkable creature.
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A Group of Crows Is Called a Murder
The term 'murder of crows' is a well-known collective noun, believed to have originated from old folklore and superstitions that associated crows with death, evil, or ominous omens. Their dark plumage and scavenging habits contributed to this eerie moniker.
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The Total Weight of All Ants on Earth Exceeds That of All Humans
While individual ants are tiny, their sheer numbers are staggering. Estimates suggest there are quadrillions of ants, resulting in a collective biomass significantly greater than the entire human population, highlighting their ecological dominance.