With CD/DVD drives almost gone from our systems, the easiest way today to install a new system is via a USB pen drive. This article guides you how to create a bootable pen drive of a Linux ISO image, so that you are able to boot and install from the same.
Simple water level controller/indicator using the concept of common emmiter configuration.
Blender 3D is an Open-source 3D creation suite. Blender 3D is a Free and Open-source 3D creation suite. Blender has been there since 2003 (open-source) and we have seen it evolving over a period of time into a really amazing tool. The release Blender 2.80 is exciting in terms of a completely revamped interface a lots of new features. Lets have a look at what's new here
Used cycles engine for render and materials. 
Used cycles engine for render and materials.
Chrome is: Material Glossy, Color: #E7E7E7, Roughness: 0.119
Red Body: Material Mix Shader: Glossy, Color: #E7E7E7, Roughness: 0.102, Red: BE0002, Roughness: 0.150
Chess board with Blender 3D.
Used cycles engine for render and materials.
Pieces are of glass material with IOR value of 1.44
Handheld LED Flashlight
Metal Chairs
Highlighter pen/marker. Consists of a seperate cap and text on the marker. Used Blender 3D version 2.76. Rendered with cycles render.