Ava Ray

Richard Nelson comes from Seattle. He has a background in BA in Liberal Studies and Master of Arts in Teaching from Antioch University Seattle. Now he is a professor at Pacific Lutheran University and has been teaching there for four years. His passions include traveling with his family, reading adventure and crime fiction. He lives there with his wife and two children.

What is CCTV

What is CCTV & How Does it Work?

CCTV stands for closed-circuit television. This surveillance technology consists of several components, including Analogue cameras, Network video recorders, and cloud-based video surveillance. It has many applications, from monitoring traffic to preventing vandalism. The following are some examples of CCTV. The benefits of CCTV surveillance are numerous. In addition to being useful for police investigations, CCTV …

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The Importance of the Type of Infill in 3D Printing

The Importance of the Type of Infill in 3D Printing

Three-dimensional printing can create a variety of patterns in its infill layer. Using the triangles pattern, for example, creates a strong, 2-D pattern by alternating lines printed in three different directions. The resulting object is made of six identical triangles that fuse together to form a hexagon, forming one layer. A cubic infill pattern is …

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