Nithu E-Tech

In Sri Lanka, the electricity supply is 230 volts. The voltage in Sri Lanka is different from North America, which is 1…

Introduction to trade and supporting services A business can simply be defined as any activity satisfying the needs and…

This spectacular effect is achieved by a transparent tube in the middle of the water column that holds the tap in place…

What is a Relay? A relay is an electromechanical or solid-state device that serves as a switch to control the flow of e…

Telstra, Optus, Vodafone and some smaller telcos now offer phone plans with access to 5G. Take a look below at what’s a…