Terminal velocity is the highest velocity attain- able by an object as it falls through a fluid (air is the most common example). It occurs when the sum of the drag force and the buoyancy is equal to the downward force of gravity acting on...
When the TH!NK Life Saving Rules were introduced in November 2016, some of the most important early feedback concerned the use of cell phones and other mobile devices. Many of our Captains considered that this was becoming a problem, so we started a “Don’t Get Distracted”...
“About four minutes later, the skipper reduced the ferry’s speed to 12kts as it approached the next stop. He then sat back in his chair and closed his eyes. Moments later, the skipper awoke with a start to find the ferry heading straight for a...
We use our hands in almost every physical task we perform, both at work and in our domestic lives: grasping, probing, pushing, pulling, lifting, carrying, and holding. Our hands and fingers are also central to our sense of touch. Because of their great versatility, our hands...
The Global Positioning System (GPS), together with GLONASS, BeiDou and Galileo forms the basis of the Global Navigation Satellite System (GNSS) that provides positioning, navigation and timing information (PNT) via satellites orbiting above the Earth. This information allows anyone with a compatible receiver to determine...