Articles

TLDR: Inside the Magic 8-Ball, a 20-sided die with pre-written answers floats in dark blue liquid. When you turn the ball over, one of the die’s faces randomly floats up to the clear window, revealing your answer.

TLDR: The teeth are bent left and right to cut a channel wider than the saw blade. This prevents the blade from getting stuck or binding in the wood and allows sawdust to escape, making the cut smoother and faster.

On Earth, gravity makes hot air rise, pulling the flame upwards into a teardrop shape. In space, without gravity, the flame expands evenly in all directions to find oxygen, forming a perfect sphere.

TLDR: We forget dreams because the brain chemicals needed to create long-term memories are suppressed during sleep, and the flood of new information when you wake up quickly overwrites the bizarre and fragile dream fragments.

TLDR: Ovens use dry heat to evaporate moisture from the food's surface, making it crispy. Microwaves heat the water inside the food, creating steam that turns the outside soggy.

TLDR: Giraffes have a specialized circulatory system with one-way valves, elastic blood vessels, and a sponge-like web of arteries near the brain. This system regulates their extremely high blood pressure, preventing a rush of blood to the head when they bend down and stopping them from fainting when they stand up.