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Cheap Car Challenge – 2009 BMW 535i xDrive Touring Wagon

The Truth About Cars

Is a blue-smoke blowing 2009 BMW 535i xDrive Touring Wagon a good idea? The Speed Academy guys shake down this old Bimmer, and the answer may be to simply add M parts, which is never a bad idea. The 5 Series wagon kicks off Speed Academys Cheap Car Challenge, and theyre still looking for more cars to round out their competition.

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Cheap Sensors for Smarter Farmers

Cars That Think

With the new, cheap sensors, farmers will be able to collect data on their farms without worrying about the variability. Building electronics made of zinc and wood and waxes—it's just very weird and cool," Whiting says. One problem with mass-producing sensors, however, is that it creates a lot of waste.

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Heating Buildings With Solar Energy Stored in Sand

Cars That Think

In a region known for long, dark winter nights, Polar Night Energy is building a system in the city of Tampere that can heat buildings with stored solar energy — all day, all night, and all winter long. Out of Finland’s energy-related emissions, 82 percent come from heating domestic buildings (Ref. There is nothing special here!”

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Singapores A*Star Awards S$27.5M In Research Grants for Technologies for Sustainable Development

Green Car Congress

In particular, one of the projects will explore the idea of using cheap and widely available magnesium oxide-based mineral silicates to trap carbon dioxide from industry flue gases via a process known as dry mineral carbonation. The by-products of this can be used as construction or landfill materials.

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Mexico is already building its own cheap EVs that will rival China

Baua Electric

Mexico is done importing cheap EVs from China and India as it plows ahead with a prototype of its own. The country’s new President, Claudia Sheinbaum, said automakers plan to develop multiple models as it builds a domestic supply chain. The country already has several prototypes. “We

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Build Your Own Hi-fi Ear Defenders

Cars That Think

My approach was to adapt an idea used in some pass-through systems, placing ambient microphones on the outside of sound-isolating headphones. I was on the hunt for another cheap small MEMS mic that could handle louder sound sources. I found the Vesper VM2020 , with an impressive AOP of 149 dB!

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The BYD Atto 3 and MG4 are great, but there is one cheap Chinese electric vehicle that’s not quite there yet…. Opinion

EV Central

There was a time when brave car companies, and Saab in particular, thought it would be amusing to build cars with silly amounts of torque and then attempt to put it through the front wheels alone. It would be fair to mention at this point that the GWM Ora is cheap, very cheap, just about the cheapest EV money can buy.

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