Day: 10 October 2020

Photo of left arm with tattoo

How Tattoo Ink is Made?

Manufacturers usually don’t reveal their ingredients and recipes. Commonly Professional tattoo inks are made from iron oxides (rust), metal salts, plastics. Homemade or traditional tattoo inks are made from pen ink, soot, dirt, blood, or other ingredients. Heavy metals used for colours include mercury (red); lead (yellow, green, white); cadmium (red, orange, yellow); nickel (black); zinc (yellow, white); chromium (green);… Read more →

Some Tech History

1. When was the first website created? The first website built was at CERN within the border of France, and was first put online on 6 August 1991: Info.cern.ch was the address of the world’s first-ever web site and web server, running on a NeXT computer at CERN. 2. Who wrote the first computer program? Augusta Ada King, Countess of… Read more →