The purpose of this Instructable is to build a portable device that can measure the speed of sound in refrigerant gases and use this data to identify them. The speed of sound in an idea... Read more
This is a chrono for measuring the speed and energy of an air rifle pellet. It’s pretty fast and could probably be used for other types of gun, (airsoft , full bore etc) but I have not... Read more
HKU Assignment Hello all!Welcome to my HKU ITTT – “If This Than That” Project. For this assignment I created a simple eye test. The Distance Measuring Eye... Read more
A substance that is in a liquid state is constantly evaporating or passing into the gaseous state (depending on the intermolecular forces and temperature). The pressure exerted by the gaseou... Read more
1. Introduction: I made a water level sensor a little while a go to measure the water level in my underground rainwater harvesting tank. Thanks to the Jubilee I found time to finally setup t... Read more