Facts related to "Parallelogram"

Today I learned of the Parallelepiped, a 3-dimensional geometric object whose faces are all parallelograms. en.wikipedia.org/wiki/Parβ¦

Today I learned about Pantograph, a simple mechanical device to scale drawings up or down AND change proportions using a parallelogram's geometry en.wikipedia.org/wiki/Panβ¦

The 3D equivalent of a parallelogram is called a parallelepiped. It is made of six parallelograms and its volume can be computed by a formula known as the triple scalar product, which is the product of the dot product and the cross product of its three vectors starting from the origin. en.wikipedia.org/wiki/Parβ¦

If you connect the midpoints of any shape with four sides, you get a parallelogram. en.wikipedia.org/wiki/Varβ¦

Today I learned of "Project Thor" A USAF plan for a satellite mounted Rail Gun that fires a 6.1 m Γ 0.3 m tungsten cylinder impacting at Mach 10 that has a kinetic energy equivalent to approximately 11.5 tons of TNT, and onboard protective measures like Hit-To-Kill Missiles or a megawatt-class chemical laser. en.wikipedia.org/wiki/Kinβ¦

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