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Did you know that there was a rainbow that lasted almost 9 hours?

Did you know that there was a rainbow that lasted almost 9 hours?

The rainbow is a meteorological phenomenon produced by the appearance of a spectrum of light frequencies in the sky. It happens when the sun’s rays pass through the water droplets in the atmosphere. Consequently, it is a hypnotic phenomenon that has inspired many tales and fables that actually lasts for a very short time. Usually, these phenomena last less than an hour.

Colors you didn’t know existed

Colors you didn’t know existed

There is an official name for the color you see when your eyes are closed: Eigengrau or Brain Grey. It translates as “grey with its own light”.

These are the oldest false teeth

These are the oldest false teeth

Findings in Etruscan tombs suggest that as early as 700 B.C. C. partial dentures were worn in the present-day territory of Tuscany, Italy. Some were permanently attached to existing teeth, and others were removable.

Quarantine: a stimulus for Newton to change the history of Physics

Quarantine: a stimulus for Newton to change the history of Physics

On occasions we have had to be subjected to various types of home quarantines due to an epidemic. The psychological and sociological consequences of this have naturally been negative, but also positive, we see below.

The name of the popular Yahoo is an acronym

The name of the popular Yahoo is an acronym

There is a curiosity of Yahoo, and it has to do with its name, because if you have not noticed, it is an acronym, which is “Yet Another Hierarchical Officious Oracle”, which means “Another hierarchical official oracle”.