GPS & Navigation

Magpies

Scientists in Australia were Studying Birds and Fitted Them with Tracking Harnesses. A Group of Magpies Helped Each Other Take the Harnesses Off.

Magpies belong to the Corvidae family of birds. Like other family members, they are often regarded as clever creatures. The Eurasian magpie, for example, is considered one of the most intelligent creatures on the planet. It is one of the few non-mammal species capable of recognizing itself in a mirror test. But how did a […]

Scientists in Australia were Studying Birds and Fitted Them with Tracking Harnesses. A Group of Magpies Helped Each Other Take the Harnesses Off. Read More »

Micronesia Stick Map

Micronesians Navigated the Pacific by Using the Stars, Recognizing and Interpreting Different Types of Ocean Swells. They Also Make Stick Maps of These Ocean Swell Patterns.

The Micronesians or Marshallese were able to build vessels known as outrigger canoes and develop their system of piloting and navigation centuries ago. Long before modern mapping and GPS, the Micronesian people relied on their ability to sense the motion of the waves for navigation. But did you know that they also navigated ocean swells?

Micronesians Navigated the Pacific by Using the Stars, Recognizing and Interpreting Different Types of Ocean Swells. They Also Make Stick Maps of These Ocean Swell Patterns. Read More »

Countdown

What Inspired NASA to Use a Countdown for Rocket Launches?

NASA retired a historic piece of equipment on December 1, 2014, at the Kennedy Space Center in Florida. It wasn’t a rocket or even a deep space nine-iron. It was the original countdown clock, a large analog display the size of a titan’s wristwatch that stood across the river from the rocket launch site and

What Inspired NASA to Use a Countdown for Rocket Launches? Read More »

Although GPS is free for the world to use, it costs $2 million per day to operate. The money comes from American tax revenue.

$750 million …the annual operating cost of the Pentagon’s Global Positioning System, according to a new Congressional Research Service report. GPS is a constellation of 24 satellites that now can tell everyone where he or she is in the world (the initial constellation cost $12 billion to put into orbit). The operating cost works out

Although GPS is free for the world to use, it costs $2 million per day to operate. The money comes from American tax revenue. Read More »