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Bakers Dozen of Donuts, or Paczki's

Why Is a Baker’s Dozen 13?

Bristlecone pine (Pinus Longaeva) on the slope of Mount Washington in Great Basin National Park in the Nevada desert.

How Can Some Trees Survive for Thousands of Years?

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.

7 Deadliest Weapons in History

Turtle, tortoise, reptile. Uses assets 88582 & 89606

What’s the Difference Between a Turtle and a Tortoise?

The field takes the turn one after the restart during the 103rd Indianapolis 500 at Indianapolis Motor Speedway on May 26, 2019 in Indianapolis, Indiana. (auto racing, Indy 500)

Why Is the Indy 500 Held on Memorial Day Weekend?

Shadow of a man holding large knife in his hand inside of some dark, spooky buiding

7 of History's Most Notorious Serial Killers

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litmus diphenylcarbazone methyl yellow ferrous 1,10-phenanthroline phenolphthalein volumetric analysis titration