Author name: star planete

Why is the Sky Blue?

Why the sky is blue is one of the great perennial questions posed by children aged five or under, never ceasing to fascinate. Sunlight is composed of all wavelengths evenly, but on its path towards Earth’s atmosphere it becomes scattered, with blue wavelengths being dispersed more readily than other ones. Sunlight On a sunny day,

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How Tall is the Colosseum?

In contrast to earlier amphitheatres which dug into hillsides for support, the Colosseum was freestanding. Comprised of three stories surrounding an arena and eighty arches on each story; its bottom floor featured Doric and Ionic columns while its second-floor floors had Corinthian ones for additional support. Builders created the Colosseum on top of what had

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Tiger Cool Facts That Will Make You Want to Protect These Amazing Creatures

Tigers are fascinating creatures with many fascinating facts that will inspire you to protect them. Did you know, for instance, that their cubs are born blind and must rely on their mother’s scent in order to survive? Bears feature fake eyes designed to frighten off other animals. Furthermore, even one strike from their paws could

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Spacecraft Thermal Control Handbook

Spacecraft thermal control systems (TCSs) ensure that a spacecraft remains within temperature limits that are appropriate to its orbit, power demand and operation. Equipment utilized includes radiators, Multi Layer Insulation blankets, two-phase devices such as heat pipes or capillary pumped loops as well as mechanical louvers and thermal switches. These systems channel heat from spacecraft

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Butterfly Cycles For Kids – Learn About the Four Stages of a Butterfly’s Life

Butterfly cycles for kids make learning about the four stages of a butterfly’s life engaging and educational. Let’s begin with its eggs – small, fragile creatures with colors varying depending on its mother – before exploring what comes next in its journey – wings! Caterpillars eat voraciously and grow, feeding on leaves before shredding their

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