powderskye

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New telescope design?

powderskye 7 comments

Earth's Magnetic Field (REMASTERED)

powderskye 6 comments

PN Flag

powderskye 0 comments

How A Trumpet Works

powderskye 79 comments

Trombone

powderskye 29 comments

Devil's Tower

powderskye 21 comments

Tatooine Sunset

powderskye 23 comments

now you can eat sunlight!

powderskye 9 comments

Simple Polonium-Plutonium Nuke

powderskye 2 comments

Lightspeed Proton Spaceship

powderskye 1 comments

The Heart Nebula

powderskye 1 comments

GRAV Snow

powderskye 19 comments