Kilcullen Science and Engineering

What Are Voltage Regulators Used For?

78XX series of voltage regulators. E.g. 7805 and 7812 having regulated outputs of plus 5 volts and plus 12 volts respectively. Silverxxx, CC BY SA 3.0 Unported via Wikimedia Commons. We're surrounded by electronic gadgets and appliances, and even devices that don't appear to be electronic may use electronic circuitry internally. For electronics to work properly, it's imperative that voltage be stable and constant.

How to Measure Length, Distance and Area on Google Maps?

Public domain image from CanvaThe Google Maps measuring tool can be used to measure the distance between two points, and the result is displayed in feet and metres.

How Can Insects Survive Falling From a Height?

Forces on a falling insect. © Eugene BrennanOne of the reasons insects don't hurt themselves when they fall is because they have a low terminal velocity and are travelling relatively slowly when they reach the ground. Terminal velocity is the maximum velocity attained by a falling body in a fluid such as air or water and subject to a force called drag, (resistance to motion).

What's the Difference Between Analogue and Digital?

© Eugene Brennan Analogue vs. Digital We often hear about analogue and digital in the context of communications, sound recording, cameras, TV, radio, and electronic devices.