The Singapore government wants to track cars using satellites and people are mad

The Government has greenlit a system to track cars with satellites to calculate road tax, and a lot of people don’t trust it. On Thursday, the Land Transport Authority announced that it has approved a multi-million dollar project to replace the current gantries at busy roads, which deduct money from cars driving through during peak periods. The new S$556 million ($397 million) project will be readied for 2020. It will involve installing car units that will communicate with a satellite […]

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How Earth Changed In 2015: The View From Far Above

Sometimes the best way to witness planetary happenings – and to gain perspective on them – is from high above. Below are satellite images and aerial photos from the NASA Earth Observatory that capture some of the more dramatic changes that shaped the earth over the past year. Large rivers run atop the Greenland ice sheet NASA This aerial photo captured in July shows large, fast-flowing rivers on top of the Greenland ice sheet abruptly dropping into a seemingly bottomless […]

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How GPS Receivers Work

Our ancestors had to go to pretty extreme measures to keep from getting lost. They erected monumental landmarks, laboriously drafted detailed maps and learned to read the stars in the night sky. Things are much, much easier today. For less than $100, you can get a pocket-sized gadget that will tell you exactly where you are onEarth at any moment. As long as you have a GPS receiver and a clear view of the sky, you’ll never be lost again. […]

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